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<strong>Dairy</strong><br />
N e w s l e t t e r<br />
SUMMER 2013<br />
• An introduction to<br />
Transition 80/20<br />
• Helping British Farmers<br />
to Benchmark for Profit<br />
• Making the most of<br />
late summer & autumn<br />
grass<br />
• Keeping an eye on milk<br />
quality at grass<br />
Wynnstay are proud to support the<br />
needs of the British <strong>Dairy</strong> Farmer<br />
Wynnstay Group Plc<br />
<strong>Dairy</strong> Newsletter September<br />
2012 1
This issue...<br />
3 An introduction to<br />
Transition 80/20<br />
4 Milk Taxi improves farm<br />
efficiency<br />
5 Soychlor - A new<br />
approach to reducing<br />
milk fever<br />
6 Cow signals: Light & Air<br />
7 Cooling & fan systems<br />
7 Heifers in the hot spot<br />
8 Walford Farm Notes<br />
9 Got worms? Kill worms.<br />
More milk. Responsible<br />
use. Good call.<br />
10 Recipe for silage<br />
11 Helping British farmers<br />
to benchmark for profit<br />
12 Making the most of late<br />
summer and autumn<br />
grass<br />
13 Maxammon Wholcrop.<br />
A rumen friendly<br />
alternative<br />
Welcome<br />
Welcome to the summer edition of our <strong>Dairy</strong> Newsletter<br />
In this edition we have articles from our <strong>Dairy</strong> Technical Team covering a range of issues including<br />
transition cow management, making the most of late summer and autumn grass and a new<br />
approach to reducing milk fever.<br />
Dr Huw McConochie introduces our new Benchmarking for Profit Groups which have recently<br />
been established in South Wales and Shropshire, helping British dairy farmers to become more<br />
profitable.<br />
We also have testimonials from our customers Mr Alun Thomas from Llangorse, Brecon and the<br />
Marks family from Ceredigion highlighting how working with Wynnstay has helped improve their<br />
business.<br />
We will again be attending The Livestock Event at the NEC, Birmingham on the 3rd and 4th July.<br />
We are inviting everyone along to the stand to meet our <strong>Dairy</strong> Technical Team and discuss the<br />
wide range of products and services available from Wynnstay.<br />
We hope you enjoy this edition, if you require any further information please don’t hesitate to<br />
contact a member of our team on the contact details provided.<br />
Visit our stand at the Livestock Event for a chance<br />
to win a HV1250 Belt Drive Fan worth over £550<br />
STAND NUMBER : FF440<br />
SPECIAL<br />
SHOW OFFER<br />
14 Functioning fertility<br />
15 Keep an eye on milk<br />
quality at grass<br />
16 Fertiliser Update<br />
16 Cereal Seed Update<br />
17 Transition cow housing<br />
that will improve your<br />
bottom line<br />
Order any product<br />
from the Transition<br />
80/20 range at the<br />
Livestock 2013 and<br />
receive a FREE<br />
Transition 80/20<br />
jacket!<br />
18 Forage Mineral Analysis,<br />
an essential tool to<br />
improve cow health<br />
and fertility<br />
19 Renewable Energy<br />
20 Wynnstay product<br />
summary<br />
2<br />
www.wynnstay.co.uk
An introduction<br />
to Transition 80/20<br />
20<br />
Managing tomorrow’s lactation today…<br />
The concept of the 80/20 principle was first described in 1897 by<br />
the Italian economist Vilfredo. At the time he was looking at the<br />
distribution of wealth and found that 80% of it belonged to 20% of<br />
the population. In modern times the successful business entrepreneur<br />
and 80/20 guru, Richard Koch has written numerous books describing<br />
the 80/20 principle and how it is applied in the world of business.<br />
Simply by thinking 80/20, he believes that it is possible to achieve<br />
far more from less. This is achieved by identifying the key drivers of<br />
business performance and understanding how to manipulate them<br />
to improve it. The net result of applying 80/20 methodology is that<br />
businesses become more efficient and profitable.<br />
I soon realised that the principle could be applied in the successful<br />
management of dairy cows and I was not alone.<br />
In the United States Ken Nordlund and his team who were evaluating<br />
and characterising the importance of transition cow management<br />
at the Wisconsin School of Veterinary Medicine had inadvertently<br />
already described in part, the 80/20 concept in action in a research<br />
publication, Professor Nordlund stated “Workers at the cow and herd<br />
level within the dairy industry know that if a cow passes the transition<br />
period, the 3 weeks before and after calving, without problems, her<br />
subsequent lactation is likely to be successful”.<br />
Fundamentally, there are two key periods that need to be added to<br />
this statement. Firstly, to have a successful dry and transition period<br />
a cow needs to be dried off in the correct body condition score (BCS).<br />
This can only be achieved if her BCS is evaluated and corrected in the<br />
final trimester of lactation. Secondly , a cow is only profitable if she<br />
gets back in calf, and ideally to achieve this she needs to be cycling<br />
by the end of the voluntary waiting period (VWP)<br />
Ironically when all these aspects of management are brought<br />
together we find that a successful lactation and profitable lifespan is<br />
only possible if these three important periods are managed correctly.<br />
Together these periods equate to 11 weeks, ie 20% of the cows<br />
production cycle which contribute to success in the other 41 weeks or<br />
80%. In essence what I have just described is the basis for the 80/20<br />
principle in dairy cow management in what can be described as the<br />
complete transition period.<br />
With the 20% period clearly defined we can begin to identify the<br />
influential aspects of this period which affect the cows performance.<br />
With this information we can employ ways to manipulate them<br />
to our advantage, helping to improve the financial and physical<br />
performance of our herd. The development of the transition cow index<br />
(TCI) in the United States has demonstrated that the financial rewards<br />
associated with correct and effective management of the 20% period<br />
are significant.<br />
The list below describes the elements of the 20% period that have the<br />
most influential bearing on cow performance;<br />
• Evaluation of condition score in the final trimester of lactation and<br />
corrective action<br />
• Implementation of an effective drying off strategy<br />
• Emphasis on cow comfort, feeding space and grouping<br />
• Correct dry cow nutrition<br />
• Three group strategy – Far off, close up and up to 28 DIM (days in<br />
milk)<br />
• Monitoring cows in the first three weeks of lactation<br />
The influence of the complete transition period and its association<br />
with 80/20 principle has resulted in the establishment of the<br />
Wynnstay Transition 80/20 concept. The concept includes a range<br />
of products and management blueprints designed to address all<br />
aspects of cow management during this short but significant period<br />
in the production cycle. To monitor the influence of the Transition<br />
80/20 concept on farm profitability, Wynnstay have also developed a<br />
range of performance calculators which characterise the magnitude<br />
of recoverable costs that exist in the dairy operation in relation to the<br />
transition 80/20 period and monitor the effect of implementing the<br />
Transition 80/20 concept.<br />
Implementation of the Transition 80/20 concept is designed to ensure<br />
better production performance, reductions in metabolic diseases,<br />
improved fertility and a healthier bottom line for herd managers who<br />
adopt Transition 80/20<br />
Transition 80/20; Key period management for improved profits<br />
Less calving difficulties<br />
Less milk fever and retained cleansings<br />
Improves DMI’s<br />
Reduced negative energy balance<br />
Reduced incidence of Ketosis<br />
Reduced incidence of LDA’s and metritis<br />
Improved milk yield<br />
Improved fertility<br />
Reduced forced culling<br />
Better profits<br />
20<br />
BCS<br />
Drying off<br />
Close off<br />
Early<br />
Lactation<br />
Up to end<br />
of VWP<br />
Lactation Dry Calving Lactation<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 3
MILK TAXI IMPROVES FARM EFFICIENCY<br />
Ceredigion farmers John, Olive and Huw Marks have gradually<br />
expanded their Holstein herd to 330 cows over the last 20 years. Huw<br />
is keen to keep the heifers growing quickly with a view to entering<br />
the herd at 24 months. A heifer calved at 24 months calves more<br />
easily, and has a greater lifetime yield than one calved at 28 months.<br />
With this in mind the heifer calves are targeted to grow at 0.8kg/day<br />
on average from 0-24 months. This means the calves need to get off<br />
to a quick start and put on a large frame in the first 3 months.<br />
Huw likes to rear the calves himself, and when he is unavailable,<br />
wanted to make sure the calves had a consistent ration. Last year<br />
he invested in a Holm & Laue Milk Taxi on the advice of the local<br />
Wynnstay Representative Bob Kudelski. Huw says “the first calf and<br />
the last get exactly the same, and if I am not around its programmed<br />
so anyone can do it.”<br />
Before the calves are born the dry cows receive a Rotavec Corona<br />
vaccination to improve the quality of the colostrum. It then becomes<br />
even more important to make sure every calf has 4 litres of colostrum<br />
in the first 6 hours. As soon as calves are born they are moved to the<br />
draught proof colostrum pens (IBCs) where they have 2 feeds in the<br />
first 6 hours. They then have 2 x 2.5 litres for the first 3 days which<br />
helps to protect against calf hood diseases. When they are sucking<br />
well they are transferred to individual hutches and started on milk<br />
powder mixed up at 150g/litre in the Milk Taxi. It only takes a short<br />
trip with the Milk Taxi to feed round. The calves are much less prone<br />
to digestive upsets as the ration is consistent and at blood heat. The<br />
Milk Taxi is easily cleaned stainless steel, and it circulates detergent<br />
around the drum and pipes after feeding time to minimise hygiene<br />
problems.<br />
The Milk Taxi plugs into a mains supply while the water is heated to<br />
the correct temperature. It then mixes the milk powder with a powerful<br />
agitator. The Taxi can then be unplugged and driven to the hutches.<br />
A pre-set program dispenses milk to the calves via a hose and pistol.<br />
Young calves get 2.5 litres of Wynngold ‘Stellar’ milk twice/day and<br />
older calves 3 litres. After 3 weeks the calves are mixed into groups<br />
of 6 and continue on milk until around 8 weeks old when they are<br />
weaned onto Wynnstay ‘Start &Wean’ nuts which are fed ad lib with<br />
straw until 12 weeks old. The calves then go onto a TMR consisting of<br />
straw/ QLF liquid feed/ blend and a heifer mineral containing Biotin.<br />
Huw says “every farmer would buy a Milk Taxi if they had to feed<br />
the calves themselves, more often this unpopular job is delegated<br />
to others. The job is more enjoyable than lugging buckets round the<br />
yard and easier on the operator. The calves do better and the job gets<br />
done in half the time.”<br />
Gill Dickson<br />
National Calf Specialist<br />
M: 07971 296702<br />
gill.dickson@wynnstay.co.uk<br />
4<br />
www.wynnstay.co.uk
SOYCHLOR - A NEW APPROACH<br />
TO REDUCING MILK FEVER<br />
Alun Thomas, with his wife Liz, farm the 395 acre Upper Pendre Farm<br />
at Llangorse near Brecon. The farm is home to the 200 cow pedigree<br />
Llynsafaddan Holstein-Friesian herd plus a beef and arable enterprise,<br />
with an average 3LU,s per hectare. The herd average over 8000 litres with<br />
3000 litres being produced from forage.<br />
Milk fever and its associated problems, as on many dairy farms, was a<br />
constant problem. Alun tried many things over the years with varied<br />
success. Bryn Hughes, from Wynnstay, introduced Alun to the product<br />
SoyChlor as a possible answer to the problem.<br />
SoyChlor has been developed by Professor Jesse Goff at the University of<br />
Iowa in the USA, to reduce the incidence of milk fever (hypocalcaemia)<br />
and the related disorders of retained cleansings, uterine infections,<br />
displaced abomasums, poor milk initiation and ketosis. It is designed to<br />
counter the depressive effects of high Potassium levels found in forages<br />
and to ensure an available supply of Calcium. The use of SoyChlor in the<br />
“close up” dry cow group produces a “partial anionic” diet which unlike<br />
previous “anionic supplements” encourages feed intake in the first few<br />
days after calving as a result of the improved blood Calcium levels.<br />
3,000ltr<br />
being produced from forage<br />
SoyChlor was introduced to the UK in 2012, and Upper Pendre Farm<br />
was one of the first farms to evaluate this new approach to reducing<br />
hypocalcaemia. Dry cows were moved into the Transition or Close Up<br />
group 2-3 weeks before calving and were fed a diet based on grass silage<br />
and straw supported by concentrates including SoyChlor dispensed<br />
through an out of parlour feeder. The daily intake of SoyChlor is adjusted<br />
dependent on the Potassium challenge to Calcium utilisation, and in this<br />
case was fixed at 1kg/cow/day.<br />
Over the course of the 2012/13 winter period 120 cows calved down<br />
having received SoyChlor as part of their Transition Diet. Since being on<br />
SoyChlor, Alun Thomas reported that no cows have developed milk fever,<br />
including 3rd + parity cows. The box of Calcium bottles remained largely<br />
unused throughout the winter. Displaced abomasums, which were a major<br />
problem in the past, are now very isolated cases. Retained placentas have<br />
virtually disappeared and the incidence of uterine infections (whites) is<br />
no more than 3%. No new mastitis cases in cows, previously free of udder<br />
infections, have been reported. Cows calved down easily and rapidly<br />
recovered their appetite, resulting in cows coming into milk quickly and<br />
reaching 40 litres/day by the end of the first week. As a consequence,<br />
ketosis, which was a problem last year, has been eliminated with bloods<br />
showing no cows at risk this winter. It is already apparent from the better<br />
health of cows at calving that fertility is improving.<br />
When asked what are the biggest benefits he has seen from using<br />
SoyChlor, Alun Thomas said “it is the ease of management around calving<br />
and the reduced time and resources in dealing with health problems at<br />
calving which is the biggest gain I have seen”.<br />
SoyChlor is a new specialist Transition feed which is already demonstrating<br />
its effectiveness in reducing hypocalcaemia in cows at calving and<br />
improving overall herd health and fertility.<br />
• SoyChlor is a dietetic feedingstuff for pre-calving cows<br />
• It has been designed to produce a “Partial Anionic” diet<br />
• Its DCAB is -3,000meq/kg DM<br />
• It contains 20% Crude Protein (DM basis)<br />
• It has a high level of Undegradable Proteins from Heat<br />
Treated Soya and Distillers<br />
• Ruminant ME (calculated) = 9.4 MJ/kg DM<br />
Don Fraser<br />
Senior Ruminant Specialist<br />
M: 07774 736707<br />
don.fraser@wynnstay.co.uk<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 5
Cow Signals: Light & Air<br />
Provision of air and light are two points of the ‘Cow Signals’ diamond<br />
which contribute to the health and performance of the dairy cow. Both<br />
of these fundamental elements are often overlooked probably because<br />
of a lack of appreciation of their importance. Air and light are very broad<br />
descriptions. More accurately it’s the provision of clean cool air of low<br />
humidity and the correct duration of light and its intensity.<br />
As a rule of thumb a 630 kg dairy cow giving 30 litres of milk generates<br />
1.5kw of heat, the equivalent of fifteen 100w light bulbs. A cow maintains<br />
a comfortable body temperature by dissipating heat in her breath and by<br />
the less efficient means of sweating. Heat stress occurs in cows when<br />
the temperature humidity index (THI) exceeds 71 (Figure 1). The THI is<br />
the interaction between temperature and humidity. As the temperature<br />
increases the humidity of the air surrounding the cow needs to be lower<br />
to accommodate the transfer of heat between the cow and the air. Above<br />
a THI of 71 the cow’s ability to dissipate heat begins to be compromised.<br />
At this point she begins to experience moderate heat stress and it<br />
starts to compromise her performance. Heat stress can affect dry matter<br />
intake, fertility, health and production. In severe cases production can be<br />
affected by up to 35%. Interestingly conditions which predispose cows to<br />
heat stress are not uncommon even in the UK. These conditions can be<br />
compounded by poor building design. As can be seen from Figure 1, the<br />
critical THI index can be reached at a mere 25 o C.<br />
Temprature Humidity Index (THI)<br />
Relative Humidity%<br />
C 20 30 40 50 60 70 80 90 100<br />
22 66 66 67 68 69 69 70 71 72<br />
24 68 69 70 70 71 72 73 74 75<br />
26 70 71 72 73 74 75 77 78 79<br />
28 72 73 74 76 77 78 80 81 82<br />
30 74 75 77 78 80 81 83 84 86<br />
32 76 77 79 81 83 84 86 88 90<br />
34 78 80 82 84 85 87 89 91 93<br />
36 80 82 84 86 88 90 93 95 97<br />
38 82 84 86 89 91 93 96 98 100<br />
40 84 86 89 91 94 96 99 101 104<br />
No heat stress<br />
Moderate heat stress<br />
Severe heat stress<br />
Dead cows<br />
Figure 1 (Taken from NADIS)<br />
Temperature humidity index table.<br />
The first signs of heat stress will be cows looking for fresh cooler air<br />
by moving to areas of the building where there is better ventilation.<br />
Lethargy, increased standing, panting and excessive drooling are also<br />
indicators. Low fat: protein ratios can also be an indication that a herd is<br />
suffering from prolonged periods of heat stress.<br />
The important thing to remember with heat stress is that it’s the<br />
temperature and humidity in the building that’s important and not the<br />
conditions outside since the cow generates significant amounts of heat<br />
that influences the immediate environment. The key to preventing heat<br />
stress is effective ventilation. In well-designed buildings with open sides<br />
and ridges, ventilation can usually be achieved naturally. In situations<br />
where this cannot be achieved it may be necessary to install fans or tubes<br />
in order to achieve adequate ventilation. These conditions can occur as a<br />
result of poorly designed buildings and weather conditions.<br />
It is important to ensure that fans are installed to drive ventilation rather<br />
than to circulate the air within the building. Circulation only moves<br />
the moisture laden air around the building and does not promote the<br />
exchange of inside air with clean lower humidity air from outside.<br />
But it’s not just the housing area that is a problem. Collecting yards where<br />
cows congregate at high density can also be problematic and is the first<br />
place to consider the installation of fans when heat stress is identified as<br />
being an issue.<br />
Although spring is here and the days are getting longer, the summer<br />
is a good time to prepare for the next housing period. Addressing the<br />
provision of light in cow accommodation with the installation of<br />
appropriate lighting systems can pay dividends. According to research, an<br />
optimum photoperiod of 16 hours light and 8 hours dark will on average<br />
increase milk yield by 6-10%.<br />
In severe cases production can be affected by up to<br />
35%<br />
The science behind the effect is linked to light reception in the eyes retina<br />
and the indirect inhibition of melatonin synthesis in the pineal gland. As<br />
photoperiod increases, the duration of high levels of melatonin in the<br />
blood decreases. Melatonin concentration in the blood influences the<br />
concentration of some hormones in the blood, for example, insulin-like<br />
growth factor-1 (IGF-1). Scientists believe changes in the concentration<br />
of IGF-1 play a role in the effect of photoperiod on milk production, as<br />
IGF-1 has been shown to increase milk yield. However it is not advisable<br />
to increase the provision of light above 16 hours as this can then have a<br />
detrimental effect on fertility.<br />
Producers considering artificially imposing extended day light hours need<br />
to consider the importance of light intensity. To have an effect the light<br />
intensity during the light period needs to be in the range of 180 to 200<br />
lux. This can be quite easily measured using a portable light meter. As a<br />
rule of thumb the light level should be sufficient for you to comfortably<br />
read your paper while sat in the cubicle shed or straw yard.<br />
Interestingly reversing the light dark ratio during the dry period can also<br />
be beneficial. Research has shown that exposing dry cows to 16 hours of<br />
darkness and 8 hours of light results in better udder development prepartum<br />
and improved colostrum quality. The benefits of this effect would<br />
include higher milk production but also improved immune status of the<br />
newly born calf.<br />
Farmers attending this year’s Livestock event at the NEC Birmingham will<br />
have the opportunity of entering a draw to win a Hydor HV1250 48”high<br />
efficiency single phase belt driven fan ideally suited for installation in<br />
collecting yards or cow accommodation.<br />
Visit our stand at the Livestock Event for a chance<br />
to win a HV1250 Belt Drive Fan worth over £550<br />
6<br />
www.wynnstay.co.uk
COOLING & FAN SYSTEMS<br />
50” and 70” Cyclone Fan<br />
The components are designed to cover all<br />
aspects of a good ventilation system. One of<br />
VES Environmental Solutions’ most versatile<br />
products is the 50˝ and 72˝ CYCLONE variable<br />
horizontal circulation fan. This high efficiency<br />
variable speed drive fan is a one of a kind in the<br />
world today. The 72˝ heavy aluminium 6 paddle<br />
blade produces in excess of 80,000 CFM of air<br />
movement while using only 2.2 KW of power on<br />
high speed and 300 watts on low.<br />
BLAST FANS<br />
Our BLAST Series of fiberglass housing<br />
re-circulating fans are the most powerful and<br />
efficient fan available in the market today.<br />
Our smooth bell shaped intake is designed for<br />
optimum performance and is balanced with an<br />
exhaust opening for maximum air velocity and<br />
distance coverage.<br />
This lightweight fan is easier to handle than<br />
heavy metal housing fans and designed for<br />
the harshest environments. Designed for<br />
performance and efficiency, our new series again<br />
raises the bar for the competition to follow.<br />
tube ventilation<br />
Canarm’s “TF” series stainless steel panel fans<br />
are designed for use in air tube ventilation<br />
systems for dairy and calf housing.<br />
Dr. Huw McConochie<br />
Senior <strong>Dairy</strong> Specialist<br />
M: 07771 740857<br />
huw.mcconochie@wynnstay.co.uk<br />
Heifers in the hot spot<br />
Calf hutches are springing up on dairy farms everywhere as a neat<br />
solution to poorly ventilated calf sheds. Individual hutches limit the<br />
spread of diseases such as rotavirus in new-born calves and provide<br />
shelter and warmth. In many ways they are a good solution to pneumonia<br />
problems and as they are mobile, can be moved to a fresh area for each<br />
calf, thus limiting disease carry over. The only downside to hutches is<br />
during extremes of temperature.<br />
Calves become stressed when the temperature goes below 10° C or<br />
above 26°C. As the weather warms up above 26° C, the calf reaches<br />
its ‘upper critical temperature’. At this temperature calves will use<br />
additional energy to cool down, and this costs money in terms of<br />
decreased appetite and compromised live-weight gain. It is important<br />
to provide extra calories in hot weather by providing more milk solids.<br />
A badly designed hutch, especially if it is a dark colour with no roof<br />
ventilation, can become like an oven in direct sunlight. As the calf tries<br />
to cool down it comes out into the warm air, then returns to seek shade<br />
in the hutch. There is no escape from the heat. Calves will naturally<br />
increase their respiratory rate to try and cool down, and their water intake<br />
increases. We can help by jacking up the back of the hutch on blocks,<br />
to increase air circulation, and provide ad lib cold water. Cold water 10-<br />
15°C is preferable to get rid of excess heat. The calves may become<br />
ill, or scour as their immune system is compromised, and in a worst<br />
case scenario dehydration and death may follow. Shading or placing the<br />
hutches under trees will cool the hutches and reduce the stress. Black<br />
calves, and those with thick hair will suffer more owing to heat retention.<br />
In a July 2012 Journal of <strong>Dairy</strong> Science study, elevating the back of the<br />
hutch lowered evening respiratory rates from 58 to 44 breaths/minute<br />
and lowered carbon dioxide levels. In another study in conventional<br />
housing, using fans to force air into buildings improved weight gain, feed<br />
Holm & Laue calf garden<br />
conversion efficiency, and lowered respiration rates.<br />
Older heifers which are ready to calve down, will drink more, eat less,<br />
and fertility will suffer. It has been shown that the quantity and quality<br />
of colostrum produced is poor in a hot period. Heat stressed heifers<br />
have smaller less vigorous calves who are not so efficient at absorbing<br />
antibodies from colostrum, resulting in a poor start.<br />
There are some innovative building designs which not only shade the<br />
hutches but also keep rain off the beds, saving straw. Strategies to<br />
minimize the effects of heat stress ,include modifications to existing<br />
housing such as fans or water sprinklers, and providing shade as well<br />
as ad lib cold water.<br />
Gill Dickson<br />
National Calf Specialist<br />
M: 07971 296702<br />
gill.dickson@wynnstay.co.uk<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 7
WALFORD FARM NOTES<br />
It is now mid-May and all is on course for the official opening of the new dairy and buildings by the Minister of<br />
Agriculture in early July. The main open day is planned for 22nd September. The photographs (taken 2nd week May)<br />
make early July achievable and we’re all excited for cows being through the new system by mid-July.<br />
Cows are currently averaging 27 litres which is good considering the<br />
number of late lactation cows currently in the herd. The number of<br />
stale cows is a problem but the 100 day in-calf rate has substantially<br />
improved so fertility is definitely moving in the right direction.<br />
We put a lot of the improvements down to the transition diet which<br />
consists of chopped straw, grass silage, maize silage, dairy blend,<br />
bespoke pre-calver minerals, liver function supplement, urea,<br />
limestone and Biobind® (mycotoxin binder). We’ve only had 1 case of<br />
milk fever in the last 8 months and no LDA’s<br />
Current milkers diet is grass silage, maize silage, 10kg blend, 2kg<br />
QLF molasses, 0.5kg Galaxy fat, bespoke milking minerals with free<br />
choice red rock salt. Fresh calvers are easily reaching 45litres and<br />
cows are getting back in calf better.<br />
Late lactation cows and far off dry cows will shortly be going out onto<br />
a loafing paddock and have a couple of hours at the feed barrier.<br />
Looking forward to the new building, the robot and the out of parlour<br />
feeders will have the ability to feed two types of compounds, for<br />
example a protein and a starch based concentrate which will enable<br />
more accurate targeting of concentrates.<br />
We will also be using an Aggers pump to target high yielding cows<br />
with a fresh cow solution.<br />
Cows receive treatment for fluke at drying off and are wormed with<br />
Cydectin at 1 week pre-calving.<br />
Since the last edition, we have drilled 100 acres of maize, 20 acres<br />
of fodder beet are in and have emerged. We’ve got an option to take<br />
75 acres for wholecrop also. Two new 1,000t silage clamps have also<br />
been built.<br />
Our focus for 2014 will be to increase milk from home grown feeds<br />
so let’s hope for some good weather for 1st cut silage, we all need it.<br />
Neil Ridgway<br />
Farm Manager,<br />
Walford College & North Shropshire College<br />
M: 07815 054337<br />
8<br />
www.wynnstay.co.uk
Got worms? Kill worms. More<br />
milk. Responsible use. Good call<br />
An unknown but possibly quite large number of dairy herds are<br />
believed to be missing out on a litre per cow per day, maybe more,<br />
due to sub-clinical gastrointestinal (GI) worm burdens, according to<br />
Zoetis vet Andrew Montgomery. To help farmers identify whether this<br />
applies to their herd, and simultaneously ensure responsible use of<br />
animal medication, a bulk milk test for antibodies to GI worms is<br />
being made available free of charge to Wynnstay Group Plc customers.<br />
Please ask your local Animal Health advisor.<br />
68% of herds with worm antibody levels have<br />
“probable sub-clinical effects on health and production”<br />
According to the Control of Worms Sustainably manual, the bulk<br />
milk test “has a reported good repeatability and results suggest<br />
that the ELISA [the test] can be used to assess whether GI-nematode<br />
infections are potentially affecting milk yield in a herd.” 1 However, it<br />
also suggests this potential is probably under-exploited as yet, saying<br />
that “monitoring worm infections in adult cattle by this means has<br />
not been routinely adopted yet.”<br />
To help farmers evaluate the likely impact in their own herds, the<br />
animal health company Zoetis (formerly Pfizer) has developed a<br />
laptop-based ready-reckoner, which Wynnstay Group Plc’s SQPs<br />
can use with their customers to translate bulk milk test results into<br />
predicted responses to worming.<br />
A pilot study on 449 milk samples last year found 68% of herds with<br />
worm antibody levels that would have “probable sub-clinical effects on<br />
health and production,” according to the test guidelines. The stomach<br />
worm Ostertagia ostertagi is the species identified most often in dairy<br />
cows 2,3 , and known to suppress appetite 4 , explains Mr Montgomery.<br />
“Numerous trials have found a yield response to worming treatment,<br />
typically in the region of 1kg/cow/day,” he says 5 .<br />
“At 25p/litre, this would be worth £76/cow over a 305-day lactation,<br />
or about £16,500/year in a typical 200-cow herd. Some trials have<br />
also identified improvements in reproductive performance although<br />
this remains to be proven absolutely.” 5<br />
“Of course, all grazing cattle, youngstock and adults alike, are<br />
susceptible to infection by worms, although dairy cows rarely show<br />
clinical signs. In their absence, an intuitive but incorrect assumption<br />
would be than no harm is being done. It is true that adult cows<br />
infected with stomach worms but not showing signs are able to do<br />
so having developed natural immunity. Nevertheless, there are at<br />
least two important consequences that can make strategic worming<br />
a good investment.<br />
“The first is that worms reduce appetite, which clearly is critical to<br />
animal performance in early lactation, with a bearing therefore on<br />
optimum timing of treatment. The second and less obvious impact<br />
of worm infection is that mounting an immune response consumes<br />
energy that otherwise could be available for milk production.”<br />
To take maximum advantage of the increased feed intakes that can<br />
result from de-worming, Mr Montgomery suggests the optimum<br />
timing is during the late dry period. He recommends that treatment is<br />
integrated into the standard management routine pre-calving.<br />
With the critical issue of responsible medicine use in mind, he also<br />
emphasises the importance of doing the bulk milk test and consulting<br />
an SQP or vet before deciding whether treatment is required. The<br />
British Veterinary Association has produced an advisory poster<br />
encouraging vets to “think twice before prescribing anthelmintics.”<br />
It also states, “anthelmintics are a necessary option but their use<br />
must be judicious.” One dictionary defines judicious as “showing<br />
reason and good judgement in making decisions,” which Andrew<br />
Montgomery suggests is something that all dairy farmers are striving<br />
for, all of the time.<br />
Anthelmintic treatment before calving can help to reduce the<br />
energy gap by improving appetite and digestion<br />
Calving<br />
The Energy Gap<br />
Service<br />
Period<br />
Months after calving<br />
Milk Yield<br />
Appetite<br />
Bodyweight<br />
Calving<br />
1. Prof MA Taylor, 2010. Sustainable worm control strategies for cattle:<br />
A technical manual for veterinary surgeons and advisors. Eblex/<strong>Dairy</strong>co.<br />
2. Agneessens J et al (2000) Veterinary Parasitology 90, 83-92.<br />
3. Borgsteede FHM et al (2000) Veterinary Parasitology 89, 287-296.<br />
4. Forbes, AB et al (2004) Veterinary Parasitology 125, 353-364.<br />
5. Charlier, J et al (2009) Veterinary Parasitology 164, 70-79.<br />
6. British Veterinary Association, undated. Responsible use of anthelmintics in grazing<br />
animals. Poster downloaded 26/3/13 from http://www.bva.co.uk/public/documents/<br />
BVA_Anthelmintics_poster.pdf.<br />
Instructions for taking up the free bulk milk test<br />
for Wynnstay Group Plc customers can be found<br />
at www.zoetis.co.uk/cydectintestkit. A FREEPHONE<br />
enquiry line is also available on 0800 112 3707<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 9
A recipe for silage<br />
Take a field of sweet grass (at least 2% sugars), cut on a sunny day and leave to wilt for up to 24 hours. Add plenty of<br />
lactic acid bacteria, a pinch of microbial inhibitor and mix well before wrapping tightly to exclude air. Leave to ferment<br />
for 6 weeks in a cool, dry place before opening and feeding to livestock. If only it was that easy.<br />
Grazed grass is the cheapest feed on most British dairy farms, yet it is also the most poorly utilised. Whether grazed or fed as silage, grass provides<br />
over half the dry matter intake of most dairy cows so small improvements in utilisation can have a major impact on milk production costs.<br />
For example, dry matter (DM) losses from big bale silage average 7% but can be as much as 13% (IGER data). This means that for every 1000 bales<br />
at 30% DM, a loss of 7% is equivalent to 10.5 tonnes of DM, which with concentrates at £290/tonne adds up to a massive £3,045. But this need not<br />
be the case; pay attention to detail, use quality proven products and the resulting top quality silage will pay dividends.<br />
Bale it right<br />
Chopping the grass allows for better compression reducing the amount of air left in the bale to<br />
fuel proliferation of bacteria. Wilt quickly to 25-50% DM, present swaths well and apply additive<br />
to control fermentation. If you imagine a bale as an ‘mini clamp’, each will have a slightly<br />
different mix of grasses with its own set of bacteria, and hence individual fermentation process,<br />
explaining why you can get significant differences between bales at feedout. A good<br />
inoculant will make the fermentation faster and more efficient thereby minimising the activities<br />
of undesirable microorganisms, reducing losses, improving quality, palatability and consistency.<br />
Of course, the use of additives cannot overcome poor silage making practices, highly adverse<br />
weather conditions nor can they improve the quality of silage made from poor material.<br />
Treat it right<br />
Wynnstay Hi-Dri silage additive has been specially developed for high dry matter and big bale grass silage.<br />
High DM forages are more difficult to ensile because the crop is harder to compact and remove all the<br />
air. In addition today’s silages made from grass that has been wilted for 24 hours will have higher levels<br />
of spoilage organisms. Wynnstay Hi-Dri is a biological inoculant with a highly concentrated formulation<br />
delivering two million lactic acid producing bacteria per gram of forage. This high level rapidly overcomes<br />
or out-competes the high levels of spoilage organisms, leads to a rapid initial fermentation which quickly<br />
reduces pH, stabilising the silage and minimising nutrient losses.<br />
Another problem with these high DM silages is that once opened, yeasts and moulds can proliferate leading<br />
to aerobic spoilage. Hi-Dri contains Alliin, a natural microbial inhibitor found in garlic which inhibits growth<br />
of these microorganisms so keeping silage cool and reducing risk of aerobic spoilage.<br />
Wrap it right<br />
Use a quality net wrap to make even and compact bales. Use a good quality bale wrap such as<br />
Volac Topwrap to ensure nutrients will be fully protected, wrapping round bales with at least<br />
four layers of film. Six layers are recommended for high DM (>40%) round bales, all square bales,<br />
heavy chopped bales and bales for livestock sensitive to mould. Traditionally black film is used,<br />
however green and white are proven to keep bales cooler and promote better fermentation.<br />
Volac Topwrap Eco-green is proven to reduce spoilage and improve silage quality.<br />
Topwrap 750mm Topwrap 2000<br />
• State of the art manufacturing techniques which give uniform<br />
stretch, thickness and reduced necking<br />
• A superior product, at the right price<br />
• Available in Eco-Green, Black<br />
and White and in a full range of sizes<br />
• Superior impermeability to air and water<br />
• Strong and durable with ideal tack levels<br />
• UV protection for all climates<br />
• Supported by Volac technical back-up and advice<br />
• 10% cost saving per bale<br />
• 33% extra film per roll (500m)<br />
• Up to 30% extra output - up to 10 more bales per roll<br />
• 24% less plastic per bale so less waste<br />
• Reduced logistic costs (transport, storage, handling etc.)<br />
• No need to change gears (stretch at 70%)<br />
• As good as standard film, proven in independent trials<br />
Wynnstay Netwrap<br />
28414<br />
Silotite 750mm<br />
Secure Covers<br />
• A round bale netwrap for use in all balers and on all crops<br />
• Guaranteed minimum length of 3300m<br />
• Full bale coverage<br />
• Non-laddering<br />
• UV sunlight<br />
protection<br />
• Developed for<br />
use on high speed<br />
bale wrappers<br />
• Multi-layer construction for superior strength<br />
• Unique two-sided tack for excellent sealing<br />
• Suitable for use on round, square and mini bales<br />
21190, 25027<br />
Secure Covers have a<br />
close knitted structure<br />
which prevents birds<br />
and cats damaging the<br />
silage wrap. They’re<br />
simply placed over big<br />
bale stacks and held in<br />
place using Secure Clips<br />
every 5m.<br />
10<br />
www.wynnstay.co.uk
Helping British Farmers<br />
To Benchmark For Profit<br />
Wynnstay Group are taking a proactive approach to help British<br />
dairy farmers become more profitable. Impressed with the success<br />
of the <strong>Dairy</strong> Top Trumps Group in South West Wales, Wynnstay with<br />
the assistance of dairy farmer Howell Richards have established<br />
two new groups, one in South West Wales and another on the<br />
Montgomeryshire/Shropshire border.<br />
Howell Richards farms 2100 cows in South West Wales and is a great<br />
advocate of <strong>Dairy</strong> Benchmarking. In the five years since he and<br />
his fellow group members set up the <strong>Dairy</strong> Top Trumps Group they<br />
have seen a significant improvement in profit margins. According to<br />
Howell the success of the group has been down to better control of<br />
costs, understanding which factors have the biggest bearing on profit<br />
and taking an informed approach to cost cutting.<br />
“In most cases there is little point reinventing the wheel” says<br />
Howell “there are plenty of businesses out there and within the group<br />
that have developed operating procedures, diets and management<br />
regimes that are efficient and profitable. The key is to get out there,<br />
learn from these people and assemble all these ideas in one place”.<br />
The <strong>Dairy</strong> Top Trumps Group will visit other farmers both home and<br />
abroad in their quest for cost saving ideas.<br />
The most important elements of a benchmarking group is<br />
consistency in the way in which costs are allocated, regular submission,<br />
analysis of figures and a willingness of the group members to be<br />
open with their figures for their business. “For a benchmarking group<br />
to be successful” says Howell “the type of system is not important,<br />
it’s more a case of the type of person.”<br />
Group member figures are collected on a monthly basis then<br />
allocated and analysed by an independent third party in a standard<br />
format. On a quarterly basis the figures are presented to the group<br />
members who can then discuss each other’s figures along with<br />
financial and technical issues that have arisen from the results.<br />
Currently Wynnstay are working with business consultants;<br />
Pentagon Associates in South Wales and with chartered accountants<br />
Whittingham-Riddell in Montgomeryshire. Both companies have<br />
been instrumental in establishing the groups. Pentagon, through<br />
their involvement with the <strong>Dairy</strong> Top trumps have extensive<br />
experience in setting up and managing a benchmarking group.<br />
HSBC bank has also been supportive of the initiative recognising the<br />
benefits and role benchmarking has to play in developing profitable<br />
businesses. According to Sian Williams senior agriculture manager<br />
for HSBC in south Wales being involved in a benchmarking group is<br />
recognised as a positive activity and demonstrates that a customer is<br />
taking a proactive approach to managing their business.<br />
“Wynnstay’s role in the project is purely as facilitators, there is<br />
no hard sell or obligation to do business with us” explains Dr Huw<br />
McConochie, Wynnstay senior dairy specialist. Initially Wynnstay<br />
facilitate the establishment of the groups by organising and hosting<br />
the initial introductory meeting. Going forward Wynnstay will<br />
provide a venue for the groups quarterly meetings and will be<br />
arranging technical workshops for group members covering all<br />
aspects of herd management.<br />
On the back of the recent success with the initiative, Wynnstay<br />
have plans to establish more groups in their trading area and would<br />
welcome any producer looking to join an existing group or to be<br />
involved in establishing a new one. The benefit of having several<br />
groups is that they can begin to benchmark between groups. This<br />
ensures that there is always a group member somewhere with<br />
performance to aspire to or with new profitable ideas to implement<br />
in your own business<br />
“Benchmarking is contagious” says Howell, “it brings out the<br />
competitiveness in us all helping to drive our business forward and<br />
increase our profitability”<br />
For more information on Wynnstay’s benchmarking for profit<br />
initiative contact Dr. Huw McConochie or Mr Howell Richards on<br />
07731 652586.<br />
Dr. Huw McConochie<br />
Senior <strong>Dairy</strong> Specialist<br />
M: 07771 740857<br />
huw.mcconochie@wynnstay.co.uk<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 11
MAKING THE MOST OF LATE<br />
SUMMER AND AUTUMN GRASS<br />
Following a year most will not forget, and a slow start to spring with<br />
few if any fodder reserves, making the most of grazing has a far greater<br />
resonance this year than most. Grazing management for the late<br />
summer, autumn period is critical to the cows’ performance not only in<br />
the short term but going forward into the winter and next spring. If grass<br />
has been managed efficiently in the early part of the season, intakes,<br />
although not as high as on first round grass, are still high and should<br />
contribute substantially to the diet. The management system will dictate<br />
the potential intake from grass the cows will achieve as can be seen<br />
below in table 1.<br />
Table 1: Predicted intakes of grass through late summer and autumn<br />
Potential Grass<br />
intake* (kg/DM)<br />
Fulltime<br />
grazing<br />
Buffer after 1<br />
milking<br />
Day graze,<br />
house night<br />
12- 14 9-11 7-8<br />
*On most farms the lower figure should be the target.<br />
The spring was late coming and first cuts have been later and may be of a<br />
lower quality and silage stocks could be slightly tighter for the winter. It<br />
would be very advantageous to make the most of your grass through late<br />
summer and autumn, efficiently extending your grazing into the autumn<br />
can save on conserved forage.<br />
To get the most from perennial ryegrass swards they should be grazed at<br />
the 3 leaf stage, a simple repeatable technique requiring nothing more<br />
technical than a note book and pencil. By the end of June over 50%<br />
of this year’s grass growth has taken place. If this sward has not been<br />
grazed down well enough in the spring a lot of dead material will be<br />
rotting away in the base of the sward and although the cow will still<br />
graze the top nutritious leaves the amount of grass available for the cows<br />
could be 30% less than you think, so even the potential intakes above<br />
will not be achieved.<br />
If the paddocks have not been grazed tightly enough during the early<br />
part of the season it would be of benefit to pre-mow the paddocks before<br />
grazing to allow the cows to clear the discarded grass and allow for a<br />
fresh and rejuvenated regrowth. The fields should be mowed down to 5-6<br />
cm (1500kg/ha). These fields should not be topped, topping forces the<br />
cut material down onto the topped grass causing it to rot and the cows<br />
to reject it.<br />
Prolonged wet weather can have a serious effect on grass dry matter<br />
intakes especially if grazed day and night. The cow may be able to reach<br />
her energy requirements during dry weather, but wet weather can have<br />
serious effects on the milk tank or loss of condition on the cows.<br />
Table 2: Guidelines on grass dry matter<br />
Leaves Guide to Grass Dry Matter %<br />
No surface moisture present 18 - 20<br />
A lot of surface moisture 11 - 12<br />
Adapted from <strong>Dairy</strong>Co<br />
As can be seen in table 2, even where small amounts of moisture are on<br />
the leaves day after day a drop from 20% DM to 15 DM could potentially<br />
equate to 25% less intake or 3kg of dry matter or 6 litres of milk.<br />
As grass growth rates start to dip in mid-summer it is important to ensure<br />
adequate acreage is available with suitable stocking rates to manage the<br />
grass efficiently, as in table 3 below.<br />
Table 3: Guide Grazing Stocking Rates for <strong>Dairy</strong> Cows (Cows/Ha)<br />
Calving Season<br />
Month Autumn/Winter Winter/Spring<br />
July 5 5<br />
August 3.5 3.5<br />
September 2.5 3<br />
During this time a wedge should be used to control your grazing.<br />
A wedge is not just for spring calvers and should be used throughout the<br />
season, as the grass growth rates dip during late summer and autumn it<br />
is essential to keep control of your wedge.<br />
The rotation length will now be increasing as grass growth slows, to<br />
maintain sufficient grass of the necessary quality silage aftermaths need<br />
to be added to the rotation. Regrowth from your second cut silage will<br />
hopefully now becoming available.<br />
Grazing aftermath’s too early post –cutting, a common mistake is detrimental<br />
to grass growth. Grazing the young shoots when only 1-1 ½<br />
leaves have appeared will starve the young plant of energy as at this<br />
stage it has used up all its reserves. Grazing the young sward at this<br />
point will extend the rotation, with this area taking a long time to recover.<br />
Grazing aftermaths at 2 ½ to 3 leaves is ideal, however be aware<br />
that all the aftermath paddocks are at the same stage of growth so if<br />
aftermaths make up a large proportion of the grazing area, start when<br />
they first reach 2.5 leaves, due to the slowing growth rate it should still<br />
be possible to graze the full area by the 3 leaf stage.<br />
If grass is in short supply buffer feeding will be required, initially big<br />
bales may be the best option but as autumn progresses increased parlour<br />
feeding or blend and pit silage will be necessary. As the days shorten<br />
in late summer, fresh and high yielding cows should be housed. For<br />
optimum milk production cows require 16 hours light and 8 hours dark.<br />
Herd condition score should be monitored, both fat and thin late<br />
lactation cows will need attention, as will those in early lactation<br />
helping reduce condition score loss to a minimum.<br />
For more advice and information on late season grazing and to keep<br />
more control of your pastures going into the winter, contact your local<br />
Wynnstay representative or a member of the Ruminant Technical Team.<br />
12<br />
www.wynnstay.co.uk<br />
Iwan Vaughan<br />
<strong>Dairy</strong> Specialist<br />
M: 07990 578548<br />
iwan.vaughan@wynnstay.co.uk<br />
Don Fraser<br />
Senior Ruminant Specialist<br />
M: 07774 736707<br />
don.fraser@wynnstay.co.uk
MAXAMMON WHOLECROP<br />
A Rumen Friendly Alternative<br />
The poor weather of 2012 and the prospect of having to feed acidic silage<br />
to his cows led Rod Ker, Justinlees, Annan in Dumfries-shire to treat his<br />
barley as wholecrop with Maxammon.<br />
“I hadn’t made the conscious decision to wholecrop the grain but we<br />
had problems harvesting crops the previous year - I wasn’t able to get a<br />
combine into the field and didn’t want to watch a field rot away.<br />
I also knew that the treated grain which has an alkaline pH would buffer<br />
my first and second cut silages which were very acidic,” says Mr Ker.<br />
3% increase<br />
in Protein levels in Wholecrop<br />
By the end of September 2012, the 40 acres of barley were badly laid<br />
in the field with grass growing through so it was sprayed with Round-Up<br />
prior to being cut. A self-propelled harvester cut the crop, then<br />
Maxammon and Maxammon feed grade urea were applied straight into<br />
an Ag-bag.<br />
After being left to ensile for four weeks until the start of November, the<br />
Maxammon wholecrop was ready to be fed out to Mr Ker’s herd of 250<br />
cows, 6kg to high yielders and 3kg to low yielders.<br />
“With the acidic silage, the buffering effect of the Maxammon treated<br />
grain was very good it kept the cows right all winter. I adjusted the<br />
normal ration, removing the rumen buffer and straw as the Maxammon<br />
wholecrop had plenty ‘scratch factor’,” says Mr Ker.<br />
The analysis results of Mr Ker’s wholecrop recorded a dry matter of<br />
68.92%, a pH of 8.28, a protein level of 12.93% and starch of 16.95%.<br />
The starch level was lower than expected, as it would usually be around<br />
30%. Mr Ker commented that “The starch in the barley was not overly<br />
high and I would say that this was a reflection of the 2012 crop.”<br />
“With Maxammon, you also benefit from an increase in protein in the end<br />
product because of the urea,” he says. Protein in wholecrop is normally<br />
in the range of 9-10% and this analysed at almost 13%, a lift of 3%.<br />
Mr Ker would have no hesitation in treating his grain as wholecrop again<br />
with Maxammon and says “I’ll definitely treat with Maxammon again<br />
and would like to try it on wheat this time.”<br />
Mr Ker’s plan is to expand his herd up to 300 cows by the end of 2013<br />
and with an increased requirement for forage; making wholecrop with<br />
Maxammon will help to achieve this aim.<br />
• Maxammon is an advanced grain treatment, which can be used to treat wholecrop or cereal crops at a range of moistures, from 18%<br />
to 25% moisture, permitting a wide harvesting window<br />
• It is simple and straight forward to use with fixed mixing rates, 5kg Maxammon and 15kg feed grade urea per tonne of wholecrop or<br />
grain, regardless of moisture<br />
• Maxammon is alkaline based and safer to use than acid based products and has the added bonus of increasing<br />
the crude protein of wholecrop by at least 3%<br />
• The alkaline pH of the crop means it is an effective rumen buffer, helping to reduce the risk of acidosis<br />
Steve Brown<br />
Ruminant Feeds Product Manager<br />
M: 07774 855026<br />
steve.brown@wynnstay.co.uk<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 13
FUNCTIONING FERTILITY<br />
By D. J. Tomlinson, Ph.D., M. T. Socha, Ph.D., Research Nutritionists, Zinpro Performance Minerals® and Michael Bain,<br />
Country Manager, Zinpro Performance Minerals®<br />
Reproductive performance is one of the most important factors<br />
impacting herd profitability. Establishment of pregnancy is essential,<br />
as it sets the stage for lactation and the generation of income.<br />
Reproductive failure (e.g. prolonged calving intervals or abortion)<br />
may lead to early culling and thus reduced longevity, less milk and<br />
fewer calves per cow per year. Nutrition is a critical component in<br />
insuring reproductive success. Cows depend on trace minerals for the<br />
establishment and maintenance of pregnancy, making trace mineral<br />
nutrition essential to reproductive success.<br />
Availa®Mins prior to calving, the incidence of retained placentas,<br />
cystic ovaries and mastitis/metritis were significantly reduced.<br />
Lameness may also impact fertility by lowering first service conception<br />
rates and increasing incidence of ovarian cysts. Clinically lame<br />
cows (those with claw disorders) within 30 days postpartum had a<br />
58.9% decrease in first service conception rates, a 125% increase in<br />
ovarian cysts and an 8.2% decrease in pregnancy rate at 150 days<br />
postpartum. The most noteworthy observation was that 30.8% of cows<br />
that were lame during the first 30 days of lactation were culled prior<br />
Improving the availability of trace minerals before parturition<br />
positively impacts postpartum reproductive performance.<br />
Research has demonstrated that complexed sources of trace<br />
minerals are more bioavailable and have better animal retention<br />
than inorganic sources.<br />
A summary of 20 peer reviewed studies published in the Journal of<br />
<strong>Dairy</strong> Science found that feeding the highly bioavailable forms of<br />
Zinc, Manganese, Copper along with cobalt carbonate improved cow<br />
health and key reproductive factors, resulting in:<br />
• 13 fewer days open<br />
• 0.3 fewer services per conception<br />
• 5 percentage unit increase in % cows pregnant at 150 days<br />
postpartum<br />
Cows were better able to respond to transition stress such as a<br />
retained placenta, as evidenced by the quicker return to normal<br />
ovarian activity. Michael Bain, Country Manager for Zinpro Corporation<br />
added that another peer reviewed study showed that by feeding<br />
to recording any reproductive event as compared to 5.4% culling of<br />
non-lame (control) cows. Improving claw integrity by supplementing<br />
pre and postpartum cows with complexed zinc, manganese, copper<br />
and cobalt reduced incidence of claw lesions/lameness.<br />
Cows with poor feet and legs tend to seek soft, comfortable locations<br />
to lie which may be unclean. Increased stress due to lameness<br />
may depress the immune system and therefore the combination of<br />
unclean resting surfaces and depressed immune function may lead<br />
to higher incidence of mastitis.<br />
Lameness, infection, heat stress and poor trace mineral availability<br />
may significantly impact fertility of dairy cattle and lead to early<br />
culling. Management strategies must be established to address<br />
cow comfort, detection and correction of lameness and prevention<br />
of mastitis. Trace minerals play key roles in preventing lameness<br />
and mastitis and in maintaining reproductive function. Feeding a<br />
nutritionally sound diet with highly bioavailable trace mineral<br />
sources throughout the dry and lactating periods helps ensure<br />
cows have an adequate trace mineral supply and that the nutrient<br />
requirements of the cow are being met.<br />
14<br />
www.wynnstay.co.uk
Keep an eye on milk<br />
quality at grass<br />
Remember on the teat skin pre milking there can be new environmental<br />
bacteria like Strep. uberis, picked up during the day and<br />
possibly a high level of surviving contagious bacteria from the<br />
last milking such as Staph. aureus. Time well spent before unit<br />
attachment to address the above problems will invariably result<br />
in lower incidences of mastitis, quicker milking and improved<br />
teat skin due to reduced over-milking. Combining cleaning,<br />
bacteria removal and biocidal ability in a single product isn’t<br />
easy! So select wisely as a quality specialist Pre Dip could be the<br />
wisest investment for the summer.<br />
It is often forgotten how important pre milking hygiene is and<br />
what means of treatment are the most effective. Work carried at<br />
Cornell University demonstrates that using a Pre-dip & Manual<br />
towel Dry is by far best choice for reducing mastitis causing<br />
bacteria.<br />
Dry Towel Only - 4%<br />
Wet Towel + Udder Sanitizer - 40%<br />
Pre-dip & Manual towel Dry - 85%<br />
Source: Cornell University<br />
As I write this column, summer appears far away, its mid-May and<br />
a hint of spring would be nice!<br />
When summer finally arrives you need to work hard to avoid the<br />
seasonal increase in bulk tank somatic cell count levels (BTSCC’s)<br />
which are often reported by National Milk Records (NMR) at this<br />
particular time of year. The reasons aren’t a mystery!<br />
• Do we take our eye off the ball at turnout because we<br />
often see visibly cleaner cows at grass?<br />
• Do we weaken udder hygiene practices, perhaps relaxing<br />
the pre milking preparation routine?<br />
• Do we sacrifice the germicidal ability of teat dips for<br />
increased skin conditioners?<br />
• Or simply do we have more late lactation cows that can<br />
lift the bulk tank SCC levels?<br />
I am sure it can be a combination of all the above and more to<br />
boot.<br />
In simple terms it can be a very challenging period with variable<br />
weather affecting teat ends and teat skin condition.<br />
Dry and damaged teats trap dirt and bacteria which are not easily<br />
removed by mere wiping alone.<br />
This is why maintaining or improving your pre milking prep routine<br />
is important to reducing the new infection rate and keeping milk<br />
quality results good. Correct preparation involves not just removing<br />
the dirt but actually breaking down the bonds that help bacteria<br />
embed themselves to the teat.<br />
Wynnstay stock dairy hygiene products from all the major<br />
manufacturers so are able to offer you an individual solution to<br />
your pre milking hygiene needs.<br />
I would be delighted to discuss any particular pre-milking<br />
hygiene questions that you may have or more general dairy<br />
hygiene issues.<br />
Adrian Morgan<br />
<strong>Dairy</strong> Hygiene Specialist<br />
M: 07780 683043<br />
adrian.morgan@wynnstay.co.uk<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 15
FERTILISER UPDATE<br />
New season UK fertiliser prices were launched on the<br />
20th of May this year. As a result of this we saw a<br />
decrease in the UK nitrogen price to levels lower than<br />
those seen since 2009.<br />
Whilst this represents a significant drop in price (13%),<br />
and a welcome reduction in input costs, the tradition<br />
of new season prices being the best time of year to<br />
buy cannot always be relied upon.<br />
As demonstrated in the graph below, 4 out of the 7<br />
years since 2006 have seen only a small increase or<br />
even a decrease in prices the following spring. That<br />
said, in the other 3 years the gains of buying early<br />
were significant.<br />
So what is the best time of year to buy? With the<br />
volatility in the world markets making price<br />
predictions very difficult, splitting your fertiliser<br />
purchasing into several blocks to average out the<br />
price may be an option worth considering.<br />
200%<br />
180%<br />
160%<br />
140%<br />
120%<br />
100%<br />
80%<br />
60%<br />
UK AN price variance (%) between Jone and following March<br />
Source : Farm Brief<br />
2000 2003 2006 2009 2012<br />
Dave Mitchell Fertiliser Manager, M: 07990 578543, dave.mitchell@wynnstay.co.uk<br />
cereal seed UPDATE<br />
Autumn Cereal Varieties for <strong>Dairy</strong> or Mixed Farms for 2013<br />
The principal requirements for a cereal variety on a dairy farm can differ slightly from the purely arable scenario. Assumptions are made that<br />
the soils are generally in better order with a higher fertility resulting from longer rotations and wider use of FYM. It is also assumed that the<br />
wider demands on the mixed farmer’s time can mean that accurate spray timings may not be as much of a priority as the arable man. With<br />
these assumptions in mind (we accept that they may not correct in all cases) the main requirements for cereals are as follows.<br />
Yield<br />
Whether grown for grain or wholecrop a top yield is always required.<br />
Straw Strength With higher fertility, plant growth regulators are essential but a variety with inherently stiff straw is important.<br />
Long straw<br />
Yield of straw is just as important as grain yield to most mixed farms so taller varieties are preferred.<br />
Disease Resistance A more fertile soil often leads to a thicker crop with higher disease levels, where yield losses can be severe if spray<br />
timings are not accurate.<br />
Recommended Varieties<br />
Winter Wheat<br />
Winter Barley<br />
Diego Cougar Relay Kielder Invicta Leeds Grafton Cassia Matros Glacier<br />
Grain Yield % 103 104 103 106 103 106 100 104 104 107<br />
Straw Strength 7 + 7 7 + 8 7 + 8 7 + 8 7 + 8 7 + 7 9 + 9 8 7 7<br />
Length of Straw (cm) 88 86 82* 83 90 88 76 87 93 81<br />
Disease Resistance<br />
Mildew 5 6 6 4 5 3 7 4 7 4<br />
Yellow rust 8 8 9 4 8 7 6 5 5 7<br />
Brown Rust 4 9 7 7 6 5 3 7 7 6<br />
Sept. Tritici 5 7 6 5 5 5 5 - - -<br />
Eyespot 5 4 4 7 5 5 8 - - -<br />
Fusarium 6 6 6 6 6 7 5 - - -<br />
Rhynco - - - - - - - 4 7 6<br />
The UK’s<br />
No 1 wheat.<br />
Can be<br />
grown on a<br />
range of<br />
soil types<br />
One of the<br />
top yielders<br />
and very<br />
good disease<br />
resistance,<br />
(the best<br />
for Septoria<br />
Tritici)<br />
*Shotish<br />
straw but<br />
high tiller<br />
numbers will<br />
produce a<br />
high straw<br />
yield. Good<br />
all rounder<br />
Huge grain<br />
yield though<br />
quality is<br />
not great.<br />
Best on<br />
heavy land<br />
A useful<br />
alternative<br />
to Diego.<br />
Very long<br />
straw but<br />
late to<br />
mature<br />
Excellent<br />
grain<br />
quality<br />
coupled with<br />
a huge yield<br />
potential.<br />
New for<br />
2013<br />
Lowish yield<br />
and short<br />
straw but<br />
very stiff so<br />
suits high<br />
fertility<br />
fields<br />
The most<br />
popular<br />
variety.<br />
Weak on<br />
Rhynco but<br />
stiff straw<br />
Same yield<br />
as Cassia<br />
with longer<br />
straw and<br />
excellent<br />
Mildew and<br />
Rhynco<br />
resistance<br />
New<br />
variety for<br />
2013.<br />
Huge yield<br />
potential<br />
and early<br />
maturity<br />
16<br />
www.wynnstay.co.uk<br />
Richard Torr Seeds Sales and Marketing Manager, M: 07990 578551, richard.torr@wynnstay.co.uk
Transition cow housing that<br />
will improve your bottom line<br />
It is quite noticeable as I travel around the country that a lot of dairy<br />
farmers are investing in dry cow accommodation. What is disappointing<br />
however is that very few are actually taking into consideration the<br />
overwhelming body of evidence to what equates to effective transition<br />
cow accommodation.<br />
Basically there are three main concepts which should be taken into<br />
consideration when planning new or renovating existing buildings. Dry<br />
and transition cows respond to being kept in socially stable groups, having<br />
excessive lying, loafing and feeding space, and adequately sized cubicles<br />
with a functional bed. These criteria form the basis of the transition cow<br />
accommodation design recommended by Transition 80/20.<br />
£110<br />
per cow per year in extra milk alone<br />
Fig 1. Social turmoil profile of a pen<br />
Weekly entries into pen<br />
Daily entries into pen<br />
One-time entry into pen<br />
etc.<br />
Socially stable groups and effective grouping strategies can only be<br />
achieved in practice if the accommodation is designed appropriately.<br />
When this is achieved social turmoil within a group of cows will be<br />
reduced. Social turmoil in close up dry cow’s effects feed intakes, lying<br />
times and access to water. Effective transition management is dependent<br />
on achieving high dry matter intakes and therefore situation’s which<br />
have a negative effect are detrimental. Figure 1 graphically illustrates the<br />
social turmoil that occurs in different grouping systems. Ideally the best<br />
system would be to have a group of cows for every week of the dry period.<br />
Practically however this would be impossible in most situations. The best<br />
compromise would be to have a far off group and then three groups of<br />
cows 3, 2 and 1 week before calving (Figure 2). The cows would then<br />
remain in these groups through to calving. Once grouped social stability<br />
is achieved in around 5 to 6 days and effects on DMI and lying times are<br />
reduced.<br />
Excess space is also an important consideration as it reduces the stress<br />
of competition for lying, feeding, and drinking space. A cow’s ability<br />
to move away from dominant and aggressive cows in the group is also<br />
important. This can be facilitated by the absence of dead ends in the<br />
building layout and wide passages around water troughs, feeding areas<br />
and cubicles. Figure 3 gives a guide to space requirements for dry and<br />
transition housing. Overstocking is a common problem and can have a<br />
detrimental effect on health and performance post calving.<br />
Cubicle design and bedding material directly influences lying times.<br />
Around the time of calving fat mobilisation and increased blood levels of<br />
the hormone Relaxin can cause sole ulcers to develop in situations where<br />
lying time is inadequate. Relaxin is associated with relaxtion of the pelvic<br />
girdle around calving time, but also causes relaxation of other muscles<br />
in the body. Most importantly the muscles which hold the pedal bone in<br />
Fig 3. Space allowance for transition cows<br />
Groups Number of Cubicles Area of Deep litter yards (m2) Feeding space<br />
Far off dries<br />
Close up dries<br />
Average calvings per week in<br />
calving period x 140%<br />
(Average calvings per week in<br />
calving period x 140%) x 1.1<br />
Average calvings per week in<br />
calving period x 9.2 x 140%<br />
(Average calvings per week in<br />
calving period x 140%) x 11m2<br />
the foot in position. This can allow the pedal bone to drop and damage<br />
the hoof. If cows are mobilising excessive body fat as a result of energy<br />
deficiency, some of the fatty tissue which acts as a cushion between the<br />
pedal bone and hoof is also lost which can exasperate the condition.<br />
A combination of correct nutrition, high DMI and adequate lying times<br />
can help to alleviate the situation. Lying times can be increased by the<br />
installation of correctly sized and constructed cubicles or the provision of<br />
straw yards. Deep litter beds such as sand or recycled manure solids and<br />
high quality mattresses will increase lying times. Cows on rubber mats<br />
will struggle to achieve the lying times achieved on deep litter systems,<br />
but if they are used it is important to ensure that at least 5cm of bedding<br />
material is provided.<br />
The concept of how this type of housing design and management<br />
protocol makes you money is quite simple. Increased pre-partum DMI,<br />
less stress, less negative energy balance, less calving problems, less<br />
disease, less lameness, better fertility and more milk! But just how much<br />
is all this worth? Unfortunately the only figures available are those from<br />
the States where they found it to be worth in excess of £110 per cow per<br />
year in extra milk alone, and that’s before taking into account the value<br />
of improvements in health and reduced drug use.<br />
0.5m per cow<br />
0.75m per cow<br />
Calving box N/A Calvings per day x 11m2 0.75m per cow<br />
Fresh cow<br />
Average calvings per week in<br />
calving period x 120%<br />
Average calvings per week in<br />
calving period x 9.2 x 120%<br />
Fig 2. The Transition 80/20 dry cow accommodation design<br />
0.5m per cow<br />
Feeding trough<br />
Far off Cows - 3 weeks - 2 weeks - 1 weeks<br />
Feeding trough<br />
Calving<br />
Pen<br />
Dr. Huw McConochie<br />
Senior <strong>Dairy</strong> Specialist<br />
M: 07771 740857<br />
huw.mcconochie@wynnstay.co.uk<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 17
FORAGE MINERAL ANALYSIS<br />
AN ESSENTIAL TOOL TO IMPROVE COW HEALTH AND FERTILITY<br />
Although minerals represent less than 5% of the nutrients in a dairy cow diet,<br />
they have a disproportional effect on livestock health and productivity. As<br />
forages exert a significant influence on the level of mineral supplementation<br />
required, it is important to regularly check forages for their mineral status.<br />
This is particularly true for grass silage which varies widely in its mineral<br />
composition because of the effect of soil type, fertiliser regimes and weather<br />
patterns. Maize Silage and Whole Crop Silage are generally more consistent<br />
in their mineral make up, being less influenced by these variables which<br />
influence mineral levels in grasses.<br />
The table opposite shows the average mineral levels over the last 3-4 years<br />
in grass silage compared with maize silage and whole crop silage.<br />
Element (DM Basis)<br />
Grass<br />
Silage<br />
Maize<br />
Silage<br />
Whole<br />
Crop Silage<br />
No. of Samples 4048 277 67<br />
Calcium % 0.64 0.27 0.31<br />
Phosphorus % 0.27 0.19 0.22<br />
Magnesium % 0.19 0.13 0.12<br />
Potassium % 2.59 1.26 1.55<br />
Sodium % 0.27 0.03 0.05<br />
Chloride % 1.07 0.33 0.54<br />
Sulphur % 0.18 0.09 0.13<br />
Cation-Anion Balance meq/kg +368 +187 +186<br />
Iron mg/kg 384 187 229<br />
Aluminium mg/kg 178 60 92<br />
Manganese mg/kg 130.7 31.4 67.2<br />
Copper mg/kg 7.2 4.4 4.1<br />
Zinc mg/kg 30.8 24.6 25.1<br />
Cobalt mg/kg 0.16 0.06 0.08<br />
Iodine mg/kg 1.28 0.76 0.60<br />
Selenium mg/kg 0.07 0.03 0.02<br />
Molybdenum mg/kg 1.25 0.51 0.73<br />
Relative Copper Antagonis Mean Very Low Low<br />
It is clearly noticeable how much lower the mineral status is for maize and whole crop<br />
silage compared to grass silage. When balancing diets for minerals it is important to take<br />
account of these differences, to avoid mineral deficiencies and imbalances interfering with<br />
health and fertility. The major risk to dairy cow productivity from forage supplied minerals<br />
include:<br />
• Milk Fever<br />
- due to high potassium and cation - anion balance<br />
• Poor Bulling Activity - caused by a lock-up of copper by molybdenum and iron<br />
• Low Conception Rates - resulting from low intakes of selenium and iodine<br />
• Lameness<br />
- due to poor zinc intakes<br />
• High Cell Counts - aggravated by low selenium and zinc forage levels<br />
To avoid these mineral related diseases and disorders, follow the Mineral<br />
Action Plan:<br />
• Check Grass Silage for mineral status every year.<br />
• Check Maize Silage and Whole Crop every other year or whenever a new alternative<br />
forage crop is used.<br />
• Use the Wynnstay Diet Mineral Check service to formulate a mineral designed to<br />
balance your dairy diet, taking into account the mineral analysis of your forages and<br />
the performance and health requirements of your herd.<br />
FORAGE MINERAL ANALYSIS + DIET MINERAL CHECK =<br />
THE KEY TO BETTER COW HEALTH AND FERTILITY<br />
SPECIAL SUMMER OFFER ON MINERALS<br />
• Take advantage of our free forage mineral analysis & diet mineral check<br />
• Big price & quantity discounts on 1t+ orders placed in July & August<br />
• Bring your custom mineral label to the Livestock 2013 Event for keen quotation<br />
For further details contact your local Wynnstay Representative<br />
Steve Brown<br />
Ruminant Feeds Product Manager<br />
M: 07774 855026<br />
steve.brown@wynnstay.co.uk<br />
18<br />
www.wynnstay.co.uk
Renewable Energy<br />
GeoGen Technologies Limited<br />
Introducing Wynnstay’s New Joint Venture Company<br />
GeoGen Technologies Ltd has been formed as a joint venture between Wynnstay Group Plc and D Jones Electrical<br />
Contractors Ltd which builds on a long standing partnership between the two businesses.<br />
The joint venture combines the technical expertise of D Jones Electrical with the long-standing business know-how and purchasing power of Wynnstay,<br />
forming a dedicated specialist renewables business offering a comprehensive service package.<br />
Supply Chain Partners: GeoGen use the leading suppliers of renewable technology to ensure that each project delivers a secure investment and<br />
operational savings for the future. This enables GeoGen to access a wealth of technical expertise and long standing experience, helping to ensure that<br />
customers have the best system design and products for their installation. GeoGen supplies and installs a range of leading renewable technologies<br />
with Microgeneration Certification Scheme Accreditation (MCS).<br />
GeoGen Solar Installations - Saving Costs and Generating Income<br />
Obviously price was a key<br />
deciding factor, but we also<br />
wanted to use a company we<br />
knew we could trust and who<br />
would get the job done, we<br />
certainly felt like we had trust<br />
in both Wynnstay and Dyfrig<br />
Jones Electrical Contractors to<br />
do this. The feed in tariffs are<br />
paid for 25* years so we also<br />
wanted to use a long standing<br />
company that won’t disappear<br />
overnight.<br />
Brian & Helen Edwards<br />
Lower SweenEy Farm,<br />
Oswestry<br />
Future Still Bright for Solar PV<br />
It’s clear to see that when you run a dairy enterprise keeping your<br />
costs under control and looking for new sources of income is top of the<br />
agenda, pressure from supermarkets to produce food using cleaner<br />
renewable energy will also play a bigger role moving forward. This is<br />
certainly the case for dairy farmers Brian & Helen Edwards, Lower<br />
Sweeney Farm Oswestry who made a £22,000 investment in solar PV<br />
12 months ago.<br />
Brian and Helen, who farm a 130 cow dairy enterprise invested in a 10<br />
kW system in December 2011, in this period Brian has seen an income<br />
and savings combined of over £3900. 50% the electricity produced is<br />
used on site, with the remaining 50% being exported.<br />
Brian commented that the income has been greater than he expected.<br />
“I knew solar would be a good investment and would generate some<br />
income for the business, but I have been surprised by how much it has<br />
generated, it has certainly performed better than expected, especially<br />
considering the weather last year” Brian also commented on the fact<br />
that the system will have reduced carbon emissions by 7 tonnes in the<br />
last 12 months.<br />
Significant drops in Solar PV equipment prices, 20 year Feed In Tariff rates and rising energy prices make solar a fantastic investment<br />
• Get a return on investment of approximately 10% or higher<br />
• The Feed In Tariff is index linked and guaranteed for the next 20 years<br />
• Save money by producing your own electricity - Every kW produced by your system is yours to use for free<br />
• Get paid for every kW of electricity you produce, whether you use it or not<br />
• Invest with confidence in a panel that will last - Invest your money wisely in a quality panel with one of the longest<br />
performance warranties on the market<br />
• Protect yourself against rising electricity prices<br />
• Get paid for all the surplus energy that you export back to the grid<br />
Biomass - Wood Pellet, Chip and Log Boilers<br />
GeoGen can provide the best carbon neutral energy solutions in biomass boilers, wood pellet boilers and woodchip<br />
boiler systems along with the most innovative renewable energy technology.<br />
Through Government Renewable Heat Incentives, fuel costs can be sliced, with savings continuing for years to<br />
come. Biomass Boilers are designed to heat small to large commercial and residential premises. Whatever your heat<br />
requirements there is a biomass boiler solution. Advances in the equipment used to prepare, transport, deliver, store<br />
and burn biomass fuels means that green is now also clean.<br />
T: 01691 670341 E: info@geogen.co.uk www.geogen.co.uk<br />
GeoGen Technologies Limited, Unit 4 Glovers Meadow, Maesbury Road, Oswestry SY10 8NH<br />
*The feed in tariff fixed rate period has since dropped to 20 years and installation costs have reduced significantly.<br />
Wynnstay Group Plc <strong>Dairy</strong> Newsletter Summer 2013 19
Wynnstay Products Summary<br />
DAIRY NUTRITION PRODUCTS<br />
• Compounds<br />
• Blends<br />
• Straights<br />
• Molasses<br />
• Minerals<br />
• Supplements<br />
CALF & HEIFER REARING PRODUCTS<br />
• Wynngold Calf Milk Powders<br />
• Concentrates – starters, rearers<br />
• Supplements, Minerals, Boluses<br />
• Equipment, Calf feeding machines, Housing<br />
DAIRY HYGIENE PRODUCTS<br />
• Pipeline cleaning<br />
• Bulk tank cleaning<br />
• Udder hygeine<br />
• Sundries<br />
SERVICES<br />
• NMS on farm evaluation and report<br />
• Herd ketosis screening<br />
• Feed, forage, water & milk analysis<br />
• Diet Check ration formulation & monitoring<br />
• Diet mineral formulation<br />
• Calf & heifer nutrition, health & housing advice<br />
ANIMAL HEALTH PRODUCTS<br />
• Heat detection<br />
• Trace element boluses & milk fever boluses<br />
• Footbath solutions and footcare products<br />
• Anthelmintics and flukicides<br />
• Mineral & vitamin drenches<br />
• Fresh cow solutions<br />
• Fly and lice control<br />
• Footbaths<br />
• Dosing and drenching equipment<br />
Fertility<br />
• Heat detection<br />
• Heat time<br />
• Tail paint<br />
FORAGE PRODUCTS<br />
• Grass, Maize & Cereal seeds<br />
• Fertiliser<br />
• Sprays<br />
• Silage Additives<br />
COW COMFORT PRODUCTS<br />
• Cubicles, mattresses and sand bed systems<br />
• Bedding material<br />
• Fans and humidifiers<br />
• Lighting design and installation<br />
• Rubber mats for cow passages<br />
• Feed barriers<br />
• Water troughs<br />
20<br />
To discuss any of the articles or for more information about<br />
any of the products listed in this edition <strong>Dairy</strong> Newsletter,<br />
contact your local Wynnstay representative or ring<br />
Wynnstay Sales Support on<br />
01691 828512<br />
or email: info@wynnstay.co.uk<br />
www.wynnstay.co.uk<br />
Wynnstay Group Plc<br />
Eagle House s Llansantffraid s Powys s SY22 6AQ<br />
Telephone: 01691 828512 s Fax: 01691 828690<br />
Email: info@wynnstay.co.uk s Web: www.wynnstay.co.uk<br />
Registered No. 2704051 VAT Reg No. 159 1866 30 Registered in Wales and England<br />
Images are for illustration purposes only.