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Water was offered ad-libitum. Feed supplements were offered in the milking parlor (treatments I and III) and 2-3 hours before milking (treatment II). Stocking rate for the 86 days trial were 2.07, 2.08 and 2.57 cows/ha for treatments I, II and III, respectively. In forage samples, in average, concentration (mg/Kg DM) of Lolitrem B (0.9±0.1) was higher than Ergovaline (0.5±0.1). Daily milk yield, adjusted to 4% fat content, was 12.9 b , 14.5 ab and 15 a L. for treatments I, II and III, respectively (P0.05) in the plasma Mg values. CUM values increases (p
4-ipomeanol and 1,4 ipomeanol. These compounds when absorbed into the animal are further converted by microsomal activity in pneumocytes to a toxic lung oedema factor, which is responsible for the pulmonary pathology. The increased use of sweet potatoes for human consumption in the UK was noted as early as 1975 by Coxon and others. They are now grown in Europe and increasingly fed as a by-products to cattle. This is believed to be the first such case published in the UK. Key words: sweet-potato, toxicity, respiratory, interstitial, pneumonia 531 Key Hepatic Gluconeogenesis Enzymes Activity in Response to Long-term Glucose Infusion in Dairy Cows B. Al-Trad 1 , K. Reisberg 1 , T. Wittek 2 , G. Gäbel 1 , M. Fürll 2 , J.R. Aschenbach 1 1 Faculty of Veterinary Medicine, University of Leipzig, Institute of Animal Physiology, Leipzig, Germany 2 Faculty of Veterinary Medicine, University of Leipzig, Medizinische Tierklinik, Leipzig, Germany Background and Aims: Periparturient ketosis in dairy cows is characterized by an imbalance of glucose and lipid metabolism. Insufficient gluconeogenesis is thought to be primarily caused by a lack of glucogenic precursors due to negative energy balance. However, it is not clear whether insufficient catalytic capacity of gluconeogenic enzymes might contribute to insufficient glucose production postpartum. The purpose of the present study was to investigate (1) whether a positive energy balance due to chronic glucose infusion has a depressive effect on selected gluconeogenesis enzymes activity in dairy cows and (2) how quick such depressive effect might be reversed after stopping surplus glucose supply. Material and Methods: Twelve midlactation dairy cows were maintained over a 28 d experimental period on continuous intravenous infusion of either saline (control group, six cows) or 40% glucose solutions (treatment group, six cows). The infusion dose was calculated as a percentage of daily energy (NEL) requirements, starting at 1.25% and increasing by 1.25%/d until a maximum dose of 30% was reached. Dose was then maintained at 30% for 5 d. No infusions were made between d 29-32. Blood samples were taken every 2 d and liver biopsies were taken on d 0, 8, 16, 24, and 32. Results: Blood glucose and insulin concentrations showed only slight and occasional increases while NEFA and BUN concentrations decreased by glucose infusion. Liver glycogen increased progressively during glucose infusion until reaching plateau between d 16 and 24. Liver glycogen fell back to baseline values on d 32 after cessation of glucose infusion. During the infusion period, no significant changes were observed in the activities of phosphoenolpyruvate carboxykinase and glucose 6-phosphatase. Fructose 1,6-bisphosphatase decreased and pyruvate carboxylase tended to decrease in the treatment group during the high dose of glucose infusion (i.e. infusion dose of 20% & 30% NEL requirements) but quickly returned to baseline after stopping the infusion. Conclusion: The activity of key hepatic gluconeogenesis enzymes in lactating dairy cows is not significantly affected by long-term increases in glucose supply. Excessive glucose improves body tissues energy status without impairing the role of liver as the main source of glucose production in dairy cows. Thus, dysregulation of gluconeogenic enzymes activity by a positive energy balance pre-partum is likely not a major cause of postpartum metabolic disturbances. 532 Milk Drop Syndrome in Dairy Ewes: Clinical and Diagnostic Approach N. Giadinis 1 , G. Arsenos 1 , G. Fthenakis 2 , P. Tsakos 3 , C. Dovas 1 1 School of Veterinary Medicine, Aristotle University, Thessaloniki, Greece, Greece 2 University of Thessaly, Thessaloniki, Greece 3 Institute of Infectious and Parasitic Diseases, Centre of Veterinary Institutes of Thessaloniki, Thessaloniki, Greece “Milk drop syndrome” in dairy sheep is a problem with considerable financial implications. However, it has not been thoroughly investigated and research data are scarce. In this paper, we present the results of a study, carried out from 2003 to 2007, into the factors involved in milk drop syndrome reported in 18 flocks of dairy sheep in Northern Greece. The appropriate clinical and diagnostic approach is also discussed. In each flock, five adult ewes were selected randomly among those with reported milk drop. Samples of blood, milk and faecal samples were collected from these animals throughout a milking period. Their feeding regime was also evaluated. Evaluation of milk yield was based on data of previous milking records. In 10/18 flocks, the subclinical mastitis, caused by coagulase negative Staphylococcus spp. or Streptococcus spp, was the reason for the reduced milk yield. In other flocks the reasons were contagious agalactia confirmed by isolation of Mycoplasma agalactiae in milk cultures (1 flock), inappropriate and unbalanced nutrition with a ration containing suboptimal protein (1 flock), chronic ruminal acidosis (1 flock) or Maedi-Visna confirmed by PCR, serum test for antibodies and histological findings in mammary glands (2 flocks). A combination of the above factors was observed in 3/18 flocks, while in one flock these factors were coupled with intense gastrointestinal parasitism. The results confirm that subcilincal mastitis is the major reason for reduced milk yield. The role of different pathogens and the need for proper management of animals in individual flocks imply that the clinical and diagnostic approach should involve a farm investigation before any measures are taken. Key words: dairy ewes, milk, mastitis 533 The Relation of ante Partum Backfat Thickness with Metabolic Disorders and Fertility Problems in Dairy Cows - a Long Term Study H. Pothmann-Reichl 1 , F. Zimmer 2 , I. Sommerfeld-Stur 3 , C. Iben 4 1 University of Veterinary Medicine Vienna, Teaching and Research Farm, Vienna, Austria 2 Veterinary Clinic, Private Veterinary Practice, Oberkirchen, Germany 3 University of Veterinary Medicine Vienna, Clinical Department of Animal Breeding and Reproduction, Vienna, Austria 4 University of Veterinary Medicine Vienna, Department of Veterinary Public Health and Food Sciences, Vienna, Austria ObjectivesIn this retrospective study the influence of post partum change of back fat thickness (BFT) in cattle on fertility, metabolic problems, mastitis and milk yield was investigated. It is hypothesised that a higher decrease of back fat thickness post partum (p.p) has a negative impact on fertility and fat metabolism. Animals, materials and methodsFive dairy farms in Germany (292 cows) and two farms in Austria (111 cows) participated in this trial and 1045 lactation periods were analysed. The back fat thickness was measured with an ultrasound (3.5 MHz) between the tuber coxae and the tuber ischiadicum at the following days: 8 weeks ante partum (a.p.), 42 days a.p., day of parturition, 42 days and 100 days p.p. The programme “Inter-Herd”(Interagri, Earley Gate, UK) was used to record the data. Statistic evaluation was done by SPSS for Windows 14.0.1 using odds ratio (OR >1 increased risk, OR
Page 2 and 3: 130. évfolyam Különszám II. Vol
Page 4 and 5: The World Buiatrics Congress (WBC)
Page 6 and 7: lood and liver tissue. Absolute vit
Page 8 and 9: RNS causes increased lipid peroxida
Page 10 and 11: An experiment was conducted to stud
Page 12 and 13: 2 Hungarian Institute of Agricultur
Page 14 and 15: and plasma HCO 3 - increased from H
Page 16 and 17: Materials and Methods: Serum sample
Page 18 and 19: vitamin A stores in liver, the hypo
Page 20 and 21: andomly assigned to one of five tre
Page 22 and 23: observed in group II of the animals
Page 24 and 25: The aim of the monitoring was to co
Page 26 and 27: health group (HG) categories for an
Page 28 and 29: lactating cows is sparse. Lotan and
Page 30 and 31: 491 Effect of Acarbose on Milk Yiel
Page 32 and 33: 499 Secondary Hepatogenous Photosen
Page 34 and 35: they all died in a two to three day
Page 36 and 37: and HCO 3 level. The concentration
Page 38 and 39: amount of saponins was observed in
Page 42 and 43: Se, I and Co) more than 500 blood s
Page 44 and 45: 541 Variability of Blood Profile an
Page 46 and 47: evaluated, highly significantly gre
Page 48 and 49: we measured sensitivity of the enti
Page 50 and 51: were 0.17; 0.13 °C (Max.: 0.73). D
Page 52 and 53: calving pregnancy period were the b
Page 54 and 55: 2 University of Nottingham, Departm
Page 56 and 57: animals) was treated with 5 mg enro
Page 58 and 59: In dairying, good management practi
Page 60 and 61: Somatic cell count (SCC) is one of
Page 62 and 63: This investigation was run in some
Page 64 and 65: eproductive data showed that cows f
Page 66 and 67: (3.6%) and others (Bacillus spp., N
Page 68 and 69: 602 Coagulase Gene Polymorphism of
Page 70 and 71: 2 Institute of Veterinary Bacteriol
Page 72 and 73: an important part of the pathogens
Page 74 and 75: 4 Universidade de Sao Paulo, Clinic
Page 76 and 77: incubated for one hour at 37 oC. Af
Page 78 and 79: In Belgium, an increasing amount of
Page 80 and 81: Conclusion: It can be concluded tha
Page 82 and 83: calves recovered after 4 to 10 days
Page 84 and 85: disease. Thus losses were estimated
Page 86 and 87: 635 Prevalence of the Pulmonary Les
Page 88 and 89: Conclusions The sanitation program
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Italy. After the sample examination
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Results: The cows sera were collect
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(Mb) as co-infecting agent is becom
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distributed over 13 different fatte
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main infection sources to the urban
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686 Characterisation of Cattle Orig
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using EPFC. The intradermal tubercu
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three cattle farms each. Leptospiro
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(cELISA) only to definitively confi
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1 Islamic Azad University of Shahre
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Financial support: CNPq, CAPES, FIN
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731 Detection and Investigation on
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necropsied, tissue samples were tak
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aseline values. The mean HCO 3, PCO
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immunization with either the curren
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decrease in animal aggregation in p
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747 Effect of Dietary Supplementati
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755 Study of Pulmonary Adenomatosis
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1 University of Erciyes, Faculty of
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2006 was observed a small decreasin
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for O69 strain), and clinical signs
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2 University of Veterinary Medicine
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794 Serum Haptoglobin and Fibrinoge
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complete random design (CRD). The r
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- Ca, Mg, K, and Ca:P ratio were lo
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818 Cerebral Coenurosis in a Goat:
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concentrations of the goat milk, in
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was significant and showed that bre
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cm long and 1/48 cm diameter. Middl
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circular external skeletal fixator
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847 Llama Anesthesia for Orthopedic
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28 Preliminary Results of a General
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Israeli commercial dairy herds cons
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109 Association between Johne’s D
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195 Changes in Plasma Beta-Carotene
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In the last year 2006, in the perio
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serious economic concern in the fat
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was a cumulative incidence rate of
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The level of antibodies produced in
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1096 Determination of Risk Indicato
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ParaCheck, CSL/Biocor, Australia (C
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1111 The Prevalence of Hock Lesions
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Objectives: To evaluate two differe
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1126 Relationships between Paratube
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1134 A Comparison between Two Calf
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The present work aimed to investiga
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University College Dublin, School o
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214 Cystic Ovarian Diseases in Dair
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inseminator were tested in regressi
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University of Nottingham, Animal He
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tissue (8,6 cm 2 ) was twice as lar
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libido in unmotivated males. Simila
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groups according to their diameter
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improve embryonic development are m
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in each sample). On day 0, 104 cows
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1 Warsaw University of Life Science
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and durable spermatozoa. Within the
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motility and CM integrity (p=0.869
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the median number of attempted moun
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909 The effect of “GnRH” and
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3 COOPEVOLIA, Centre Zootechnique,
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923 Production of Bovine Blackleg V
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Institute of Physiology and Sanocre
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2 University College Dublin, Animal
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(I.M.) 1 mg of estradiol cipionate
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Lameness results in major economic
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methods; ANOVA (with binary classif
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Initially two radiographs were obta
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number of positive faecal samples d
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Pfizer Animal Health, Veterinary Me
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Key words: calf, active immunity, p
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1 University of Camerino, Veterinar
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vaccinated (Group II) with Pastobov
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# Antigens Association in diarrhea
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1015 Prevalence of Eimeria Infectio
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group showed higher serum lactate c
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thymus in calves and heifers with c
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concentrations of calves with umbil
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The goal of this paper is to expose
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187 Cooling Strategies to Improve M
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inspections, carried out by specifi
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The origin of Hungarian Grey cattle
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University of Warmia and Mazury in
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POSTER ABSTRACTS 1225 The Effect of
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multiple fracture (n=1, 1.3%). The
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position. A fusiform skin incision
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Conclusions: It is the first presen
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1 Faculty of Veterinary Medicine, A
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of 101.55±4.94 mmHg. Afterwards th
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In Mexico, there is a wide variety
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Cardiovascular disorders are common
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Conclusion: The total contamination
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Material and methods: The trial inc
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detection of M. wenyonii infection.
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390 Study on Attenuation Mechanisms
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POSTER ABSTRACTS 1152 Detection of
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digestion. It works only on Apicomp
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determined. In addition the surface
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Africa and Europe, which causes mor
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Results: On D0, the animals include
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addition of mineral salt, during 12
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digestion could be improved with im
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Ltd., Blandford Forum, UK). The air
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cattle ocular squamous cell carcino
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pharmacokinetic/pharmacodynamic (PK
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Bovine Immunodeficiency Virus (BIV)
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significantly lower in groups vacci
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5.00+0.67 and 4.94+0.15 mEq/l in th
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potable water and food, avoiding st
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equal distributions at 08:00 and 16
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electrochemical properties of the a
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Selenium was discovered as an essen
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growth by measuring BW at 15-day in
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influence of different risk factors
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performances of primiparous cows ar
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anaerobes. Aerobic bacteria isolate
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P4 12 to 24 hours before calving is
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exists about Mb prevalence in dairy
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frequency of animals with BoHV anti
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esults, supported by a decrease in
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international drivers of change. Th
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The performance of two groups of no
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spasm is accompanied by kyphosis, w
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occurrence of a crisis of stiffness
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Notices 336 XXV. Jubilee World Buia
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