of silage additives for all forage systems

A complete range
of silage additives
for all forage systems

WYNNSTAY The Complete Range of Silage Additives
The Wynnstay range of additives is designed specifically for UK
conditions. The products are made to ensure a good fermentation
while maintaining the nutritional quality of silage, whether it is
clamp, big bale, maize or wholecrop. All the Wynnstay additives
have been thoroughly researched and independently tested.
The unique strain of Lactobacillus Plantarum used in the Wynnstay range of additives grows
well across a wide pH range. Once applied the bacteria quickly dominate the naturally
occurring bacterial population to ensure a fast and efficient fermentation, this keeps ammonia
levels down and nutrient levels up.
Why use an additive:
Although the silage making process can be explained very simply, it is actually very complex
and dependant on many factors, such as the natural microbial population, harvesting
conditions and the sugar content of the grass. Consequently, silage quality can be very variable
and the only way to effectively control the fermentation process is to use an additive. The array
of additives available can be very confusing so a straight forward range has been developed
where dry matter and type of crop determine the additive recommended.
Cost Benefit of using an additive:
Trials at Wye College demonstrated that cows fed grass silage treated with our additive yielded
an extra 19 litres of milk per tonne of silage fed compared with those fed untreated silage. This
equates to more than one litre of extra milk per cow per day. Giving an investment return of 4:1.
32% increase in
liveweight gain

WYNNSTAY XL40
FOR GRASS SILAGE
Wynnstay XL40 – An Ultra
Low Volume biological
inoculant for grass silage.
Wynnstay XL40 delivers 1million lactic acid
producing bacteria to every gram of forage
with an application rate of 40ml per tonne of
forage, to aid a more efficient fermentation.
Application
Wynnstay XL40 can be applied at 40ml per
tonne of forage or alternatively can be mixed
at a lower concentration so that it can be
applied at 200ml per tonne of forage.
Benefits of Wynnstay XL40
All the benefits of Wynnstay Clamp but with
reduced down time because one applicator fill
can last all day.
• 32% increase in liveweight gain
• 30% reduction in effluent
• Intakes improved by 5%
• 28% more protein retained
• Improved milk production efficiency
Cows yielded an extra 19 litres of milk per
tonne of silage fed compared with those fed
untreated silage.

WYNNSTAY CLAMP
A traditional biological inoculant for clamp silage.
Wynnstay Clamp delivers one million lactic acid producing
bacteria to every gram of grass treated, to produce an efficient
fermentation.
Better quality silage every time.
The table shows the results of trials carried out at the Welsh Plant Breeding Station where
untreated silage showed the results of a classic poor fermentation: high ammonia-N, high pH and
low lactic acid, compared with Wynnstay Clamp treated silage which had fermented efficiently.
Dry Matter (%)
pH
Ammonia - N ( %Total N )
Crude Protein ( %)
Lactic Acid ( % of DM)
ME ( MJ/kg DM)
WYNNSTAY CLAMP Treated
21.7
3.8
4.0
18.7
7.8
10.7
Untreated
19.4
4.5
10.4
19.4
2.5
10.3
28% more protein retained.
As a result of more efficient fermentation, protein is protected from breakdown during ensiling.
Trials at IGER demonstrated this: livestock digested 28% more of the protein in Wynnstay
Clamp treated silage when compared to untreated silage,
+4.4%
Milk
Yield
+3.0%
Milk
Protein
+6.8%
Milk
Protein
Yield
+4kg
Liveweight
Gain
Improved milk production efficiency.
Trials at Wye College illustrated improved performance of cows fed Wynnstay Clamp treated
silage. The cows yielded an extra 19 litres of milk per tonne of silage fed compared with those
fed untreated silage.

WYNNSTAY
CLAMP
FOR CLAMP SILAGE
32% increase in
liveweight gain.
Wynnstay Clamp increased beef cattle
liveweight gains by as much as 32% in work
carried out at ADAS Liscombe, which amounted
to an extra 19kg over the 99 day trial period. Feed
conversion improved by 26% over animals
fed untreated silage.
32% increase in
liveweight gain
Intakes improved by 5%.
All trial work has demonstrated the improved palatability of Wynnstay Clamp treated silage
with increased intakes and animal performance. Trials with beef cattle at Liscombe compared
Wynnstay Clamp and two other leading silage additives with untreated silage and found that
Wynnstay Clamp increased intakes by 5%.
30% reduction in effluent.
Kingshay found that Wynnstay Clamp reduced effluent by 30% compared with untreated
silage and 55% compared with formic acid treated silage.
APPROVED TRIALS
Improves liveweight gain
Improves milk yield and quality
Improves voluntary intakes
Improves protein and energy utilisation
Improves fermentation
Reduces effluent

WYNNSTAY DOMINATOR
A biological inoculant for 20 -30% DM silage wilted for 12 hours
or more. Delivers 2 million lactic acid producing bacteria per gram
of forage.
Wilting for high dry matters.
Wilting for 12 hours or more has become
standard practice to reach the higher dry matters
required by the modern dairy cow. However,
longer wilting results in the proliferation of
spoilage organisms, such as coliforms (see chart),
leading to the loss of valuable nutrients.
This means that a highly concentrated inoculant
is now essential to out compete very high levels
of spoilage organisms and reduce pH as quickly
as possible.
Even with good management techniques, over
half of the true protein content of grass can be
lost during the ensiling process if the pH is not
reduced quickly enough.
Effect of Wilting on Levels
of Spoilage Organisms
3,500,000
3,000,000
2,500,000
2,000,000
1,500,000
1,000,000
500,000
0
0 24 36
Duration of wilt (hours)
Highly concentrated formulation.
In response to these changing practices, Volac has developed Wynnstay Dominator – the most
concentrated silage inoculant to be introduced to the market. Proven to out compete the higher
levels of spoilage organisms present on wilted grass (see opposite), it consistently dominates the
fermentation within the first 24 hours. Wynnstay Dominator will reduce the pH quickly,
stabilising the silage and minimising the loss of valuable nutrients, such as protein and energy.
Total domination of the clamp in 24 hours.
Wynnstay Dominator was used in trials to treat 30% DM wilted grass silage with a high natural
population of potential spoilage organisms. After ensiling for 17 hours, Wynnstay Dominator
controlled the fermentation - 83% of the organisms present were lactic acid bacteria from
Wynnstay Dominator, compared to only 55% when traditional additive was used - leading to a
faster, more effective fermentation.
Levels of potential
spoilage organisms (cfu/g forage)

WYNNSTAY DOMINATOR
FOR 20-30% DM SILAGE
Domination of bacterial population 17 hours after inoculation
comparing a traditional additive with Wynnstay Dominator.
WYNNSTAY Dominator Additive
Delivering 2 million bacteria per gram of forage.
17%
POTENTIAL
SPOILAGE
ORGANISMS
83%
LACTIC ACID
BACTERIA FROM
WYNNSTAY DOMINATOR
Traditional additive
Delivering 1 million bacteria
per gram of forage.
+ Increased Lactic Acid Bacteria
= Greater domination of natural microbial population
= Faster, more efficient fermentation
= Up to an extra 19 litres milk per tonne of silage treated
45%
POTENTIAL
SPOILAGE
ORGANISMS
55%
LACTIC ACID
BACTERIA FROM
TRADITIONAL
INOCULANT

WYNNSTAY HI-DRI
A biological inoculant with natural microbial inhibitor for high DM
and big bale grass silage.
Delivers 2 million lactic acid producing bacteria per gram
of forage.
Wynnstay Hi-Dri is specially formulated to improve the quality of high dry matter and big bale
grass silage (e.g. haylage) and reduce the risk of aerobic spoilage.
As well as delivering highly concentrated levels of Lactobacillus plantarum bacteria, Wynnstay
Hi-Dri also contains the natural microbial inhibitor found in garlic, Alliin. They work together to
give controlled fermentation with minimal protein breakdown and maintain a cool silage that is
high in nutrient value.
Improves fermentation.
Trials at IGER compared Wynnstay Hi-Dri treated big bale silage with untreated clamp silage.
The Wynnstay Hi-Dri treated bales showed a faster and more efficient drop in pH.
Improves aerobic stability.
The graph opposite shows the results of work carried out at CEDAR. Again Wynnstay Hi-Dri
resulted in a more stable fermentation than untreated silage, with reduced heating, lower
ammonia-N levels, higher lactic acid concentrations and significantly improved aerobic stability
at feedout.
Inhibits yeasts and moulds.
Trials have consistently shown Wynnstay Hi-Dri’s unique formulation helps to overcome the
problems associated with aerobic stability, as well as producing a faster more stable
fermentation.
Improved animal performance.
Cows fed Wynnstay Hi-Dri treated silage in trials at Wye College yielded an extra 19 litres per
tonne of silage compared with those fed untreated silage. Trials at IGER demonstrated the
significant advantages of Wynnstay Hi-Dri treatment, when it increased liveweight gain in beef
cattle by 33%.
APPROVED TRIALS
Improves liveweight gain
Improves milk yield and quality
Improves voluntary intakes
Improves protein and energy utilisation
Improves fermentation
• Improves aerobic stability
Reduces effluent

WYNNSTAY HI-DRI
FOR HIGH DM AND BIG BALE SILAGE
Temperature ˚C
37% DM GRASS
30
28
26
24
22
20
0 2 4 6 8
Days after opening
UNTREATED
WYNNSTAY HI-DRI

WYNNSTAY CORN
A biological inoculant for maize and wholecrop silage.
The preservation of maize silage is similar to that of grass silage, consisting of fermentation to
produce lactic acid, resulting in a reduction in pH which preserves the crop and prevents the
growth of spoilage organisms. Maize has a high dry matter (DM) which together with the high
starch content of maize cobs generally ensures a rapid fermentation removing the need for a
lactic acid bacteria inoculant to aid fermentation. The maize forage is at risk from aerobic
spoilage due to its high DM and high starch so the use of an additive to prevent the growth and
colonisation of yeasts and moulds during ensiling and feed out is essential. Wynnstay Corn has
been proven to reduce the growth of these yeasts and moulds and therefore increases the
aerobic stability of maize silage thus reducing the risk of heating at the clamp face.
Tried and Tested.
Trial work has been carried out comparing
30% DM maize silage treated with Wynnstay
Corn against untreated maize. The graph,
right, shows the difference in stability on
exposure to air 95 days after ensiling. Access
to air encourages yeasts to multiply, but with
treatment with Wynnstay Corn the time
taken for concentrations to reach ‘at risk’
levels is greatly extended therefore increasing
the time available to feed the forage before the
onset of nutritional losses.
Yeast Concentration cfu/g
Maize Aerobic Stability
@ 95 Days
Untreated
Wynnstay Corn
1,000,000,000
100,000,000
10,000,000
2,000,000 DANGER: RISK OF AEROBIC SPOILAGE
1,000,000
100,000
10,000
0 3 5 7 10
Days after opening
Wholecrop.
The popularity of ensiling wholecrop cereals
has increased over recent years as they offer
a good alternative to traditional forages. Cereal
wholecrop can be high yielding and benefit
from a wide harvest window allowing for
wholecrop to be harvested with varying dry
matters. Due to this wide range in dry matters
the extent of fermentation will vary. These
crops are at risk from aerobic spoilage and
heating in the clamp. It is therefore
recommended that when using an inoculant,
a brand incorporating an aerobic spoilage
inhibitor such as Wynnstay Corn is applied.

CORN
FOR WHOLECROP AND MAIZE SILAGE
Fermented Wholecrop
(35 - 55% DM).
The use of Wynnstay Corn has been proven to
dramatically improve aerobic stability. Applied
at 2 litres per tonne fresh weight, the graph
compares 40% DM wholecrop treated with
Wynnstay Corn against untreated wholecrop.
After 48 hours exposure to air, spoilage yeasts are
7000 times more concentrated on the untreated
wholecrop, increasing the risk of nutrient losses
in the clamp due to aerobic spoilage.
High DM Wholecrop
(56 - 75%DM).
Due to high grain maturity, wholecrop of this dry
matter should be harvested using a primary
processing mill to ensure maximum digestion
when forage is fed. Due to the high DM, limited
fermentation will occur. However aerobic
spoilage can occur causing heating and nutrient
loss. The graph, right, shows 72% DM wholecrop
four months post harvest. Treatment of the crop
with four litres per tonne of Wynnstay Corn at
harvest ensures better aerobic stability when
exposed to air.
Yeast Concentration cfu/g
Yeast Concentration cfu/g
40% DM Wholecrop Aerobic
Stability @ 17 Days Untreated
Wynnstay Corn
1,000,000,000
100,000,000
10,000,000
2,000,000 DANGER: RISK OF AEROBIC SPOILAGE
1,000,000
100,000
10,000
0 2 4 7 11
Days after opening
72% DM Wholecrop Aerobic
Stability @ 4 Months
Untreated
Wynnstay Corn
100,000,000
10,000,000
2,000,000 DANGER: RISK OF AEROBIC SPOILAGE
1,000,000
100,000
10,000
1000
100
0 2 4 12
Days after opening

CLAMP XL40 DOMINATOR HI-DRI CORN
Crop Type/Dry Matter
Grass 18%-25%
Grass 18%-25%
Grass Silage 20%-30%
Wilted for 12+ hours
Grass 30+%
Big Bale 30+%
Haylage 55%-70%
Maize 30%-35%
Whole Crop 35%-75%
Ingredients per Gram
of Forage Treated
1x10 6 Lactobacillus plantarum
1x10 5 Pediococcus pentosaceus
1x10 6 Lactobacillus plantarum
1x10 5 Pediococcus pentosaceus
2x10 6 Lactobacillus plantarum
Stimulant package
2x10 6 Lactobacillus plantarum
Alliin, natural microbial
inhibitor
Lactobacillus bacterium
Alliin, natural microbial
inhibitor
Application Feature
Liquid
(instant - ready to use)
Liquid only
(instant - ready to use)
Liquid only
(instant - ready to use)
Liquid only
(instant - ready to use)
Liquid only
(instant - ready to use)
Special Features
- Reduces effluent by 30%
- Reduces protein breakdown
by 32%
- Improves intakes by 5%
- Extra 19 litres milk per tonne
of forage treated
- Reduces effluent by 30%
- Reduces protein breakdown
by 32%
- Improves intakes by 5%
- Extra 19 litres milk per tonne
of forage treated
- Flexible application rate
- Improves fermentation
efficiency
- Total domination of the
natural microbial population
in 24 hours
- Out-competes high levels of
spoilage organisms found on
wilted silage
- Very rapid pH drop
- Minimises protein breakdown
- High quality silage produced
- Alliin, natural microbial
inhibitor
- Improves aerobic stability
- Reduces heating
- Reduces yeast & mould levels
- Alliin, natural microbial
inhibitor
- Improves aerobic stability
- Reduces nutrient losses at
feed out
- Immediate and long lasting
protection against spoilage
Organic Approval
Yes
Yes
Yes
Yes
Yes
Storage