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Lameness results in major economic losses on dairy farms. Infrared thermography (IRT) is a non-invasive technique to detect thermal radiation from the surface of any object. The objective of this study was to evaluate the capability of IRT to detect relationship to visual abnormalities of the hoof of dairy cows. In a dairy farm with a sudden increase of acute lameness, all cows underwent clinical and orthopaedic examination. The temperature of the skin of the claws was estimated by manual palpation. Then infrared images were taken from all hoofs of 50 lame cows. To compare the temperature measured IRT images were taken from 50 non-lame cows from another farm without any acute occurrence of lameness and 50 nonlame calves. The measured IRT temperature at the single hoof was compared statistically using simple ANOVA. The mean maximum IRT-temperature of lame claws was 33.38±1.21 °C and 32.40±1.36 °C of the healthy claws of the same animal (p
findings radiography revealed in three animals no, in one animal a partial, and in four cases a complete osseous ankylosis of the DIJ. Conclusion: According to the histological and radiological results of this study formation of complete osseous ankylosis after resection of the DIJ in dairy cows appears to take considerably longer than two years. Thus, it remains questionable if the application of any measures for only about three month will contribute substantially to the development of ankylosis. However a conclusion about the clinical mobility of the DIJ is not possible, because even joints with a fibrous connection can be clinically fixed. 259 Long-term Observations in Dairy Farms with Lameness Problems K. Muller 1 , T. Eilers 1 , R. Pijl 2 1 Clinic for Ruminants and Pigs, Faculty of Veterinary Medicine, Freie Universitaet, Berlin, Germany 2 Functional Claw Trimming, Jever, Germany Objectives of Study: Lameness forms a major problem on dairy farms in Germany causing substantial economical losses and impairment of animal well-being. In the present study the effects of the implementation of functional claw trimming were examined on four dairy farms by long-term observations including monitoring of distinct cow signals in two-week intervals within a period of one year. Materials and Methods: Four dairy farms, keeping between 60 and 120 dairy cows and sharing common characteristics with respect to management, housing conditions and mean annual milk yield, were included in this study. The housing conditions were evaluated by a standard protocol, and claw disorders were documented at functional claw trimming performed three times per year. In addition, distinct cow signals as lameness, body condition, stall standing index, rumination index, rumen filling and milk production data were documented in intervals. Results: None of the farms achieved the recommended number of points with respect to housing conditions (109±137 points/178 points possible). The farms were deficient in walking space, cubicle comfort and floor condition. Following functional claw trimming, the severity of lameness decreased significantly. The prevalence of infectious and non-infectious claw diseases, however, did not change. Conclusions: On all farms similar parameters of cow comfort were shown to be deficient. The latter deficiencies have been reported to affect claw health before. Functional claw trimming is a useful tool to improve lameness in herds, but seems to have hardly any effect on claw disease prevalence. On basis of these results we assume that only a change in housing conditions, especially in cubicle comfort, will have a sustainable effect on claw health. 260 Associations between Milk (Daily Milk Yield, Percentage of Milk Protein, Fat and Fat-protein Ratio) and Occurrence of Claw Disorders in Holstein Cows O. Penkava, P. Fleischer, S. Slosárková, R. Dvorák University of Veterinary and Pharmaceutical Sciences Brno, Clinic of Ruminant Diseases, Brno, Czech Republic Using data from a separate study we evaluated associations among milk yield, milk components and occurrence of claw lesions. A total of 65 pluriparous cows from a commercial herd (405 cows, mean yield 7.980 kg, fat 3.9%, protein 3.3%) have been studied. They were kept in free stall on concrete floor with bedding in boxes and fed by TMR. Claw trimming was performed at the start of the study in April, at the end in October and continuously in lame cows. At the start cows were 93 days post partum (p.p.), on average. Claws were examined 5 times at regular intervals. We put into evidence and scored ulcers (toe, sole ulcer; white line disease/ a feet: 0-4) + sole hemorrhage (a feet: 0-1); horn defects (double sole, vertical fissure, horizontal grooves, separation of the side wall/ 0-1) and heel horn erosion (0-1). Findings were divided according to days p.p. into 10 groups (30, 60, 90±15 days, etc.), n=25-36. Findings were coupled with data on daily yield, % protein, fat and fat-protein ratio (FP) from the nearest monthly performed milk yield test. Associations among milk and prevalence of claw disorders were examined using data of the nearest and 3 previous tests. We employed Spearman´s Rank Correlation Test. Following associations were significant (p‹0.05). Ulcers and/or sole hemorrhages at 3 months (M) p.p. were positively correlated to % of fat and FP at 2 Mp.p. Likewise, cows affected in this way at 4 Mp.p. had higher % of fat and higher FP at 1 and 2 Mp.p. Similarly, cows with horn defects at 3 Mp.p. had higher % of fat and FP 1 and 2 Mp.p. Cows with higher % of fat and higher FP (a strongly negative energy balance) at the start of lactation may be expected to suffer from higher prevalence of sole hemorrhages, ulcers and horn defects during the next M. Cows affected by heel horn erosion at 5 resp. 6 Mp.p. had at 2 and 3 resp. 4 Mp.p. lower FP due to lower % of fat (acidotic load). In cows with horn defects at 6 resp. 7 Mp.p. there was lower % of fat, resp. protein and higher FP at 5 Mp.p. Cows with horn defects at 8 Mp.p. had higher yield and lower % of fat at the respective and previous M. They had lower % of protein at 6-8 Mp.p. Cows producing more milk low in % of fat and protein suffered more frequently from horn defects. Such associations became clear only after 5 M from the previous claw trimming, probably due to the rate of horn growth. This study was supported by Grant MSM6215712403. Key words: claw disorders, horn quality, milk yield, milk composition, energy balance 261 Prevalence and Factors Affecting Lameness in Commercially Raised Dairy Cows G. Oikonomou 1 , A. Kougioumtzis 1 , A. Tsiaras 2 , G. Arsenos 1 , G. Valergakis 1 , G. Banos 1 1 Aristotle University of Thessaloniki, School of Veterinary Medicine, Thessaloniki, Greece 2 Vivartia Avee, Athens, Greece Cow lameness is one of the main issues concerning the dairy industry today. The objective of this study was to assess prevalence and factors affecting lameness, as well as its association with involuntary culling.A total of 497 primiparus Holstein cows that calved between January 2005 and June 2006 were considered. These animals were raised in a large commercial farm in N. Greece and housed in 4 free stall barns with concrete flooring. Cow locomotion was scored weekly from calving to week 13 of lactation and thereafter monthly until the end of lactation, using a 1 to 5 scale. Cows were then defined as healthy during the 305 day lactation (all locomotion scores = 1) or lame (at least one locomotion score ≥ 2), and lameness was treated as a binary trait (0/1). Measurements of body condition score, estimated live weight, energy content, and blood serum levels of glucose, -hydroxybutyrate and non-esterified fatty acids were also obtained for these cows, once two months before calving and once again during the first week post calving. These measurements, together with factors such as calving season, calving year, age at calving and country of origin, were examined for their effect on lameness with the use of a mixed linear model. Another model was used for the estimation of lameness effect on cow reproductive performance; the latter was evaluated with both conception and interval traits. 46% of all cows were at least once lame and 31.5% were culled during first lactation. 60% of the culled cows were lame before culling and lameness was the main reason for involuntary culling. Calving season and live weight at first week of lactation had a significant impact on the prevalence of lameness (P0.05). Lameness was also found to have a significant (P
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130. évfolyam Különszám II. Vol
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The World Buiatrics Congress (WBC)
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lood and liver tissue. Absolute vit
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RNS causes increased lipid peroxida
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An experiment was conducted to stud
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2 Hungarian Institute of Agricultur
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and plasma HCO 3 - increased from H
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Materials and Methods: Serum sample
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vitamin A stores in liver, the hypo
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andomly assigned to one of five tre
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observed in group II of the animals
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The aim of the monitoring was to co
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health group (HG) categories for an
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lactating cows is sparse. Lotan and
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491 Effect of Acarbose on Milk Yiel
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499 Secondary Hepatogenous Photosen
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they all died in a two to three day
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and HCO 3 level. The concentration
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amount of saponins was observed in
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Water was offered ad-libitum. Feed
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Se, I and Co) more than 500 blood s
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541 Variability of Blood Profile an
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evaluated, highly significantly gre
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we measured sensitivity of the enti
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were 0.17; 0.13 °C (Max.: 0.73). D
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calving pregnancy period were the b
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2 University of Nottingham, Departm
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animals) was treated with 5 mg enro
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In dairying, good management practi
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Somatic cell count (SCC) is one of
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This investigation was run in some
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eproductive data showed that cows f
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(3.6%) and others (Bacillus spp., N
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602 Coagulase Gene Polymorphism of
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2 Institute of Veterinary Bacteriol
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an important part of the pathogens
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4 Universidade de Sao Paulo, Clinic
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incubated for one hour at 37 oC. Af
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In Belgium, an increasing amount of
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Conclusion: It can be concluded tha
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calves recovered after 4 to 10 days
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disease. Thus losses were estimated
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635 Prevalence of the Pulmonary Les
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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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Page 172 and 173: 1111 The Prevalence of Hock Lesions
Page 174 and 175: Objectives: To evaluate two differe
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Page 178 and 179: 1134 A Comparison between Two Calf
Page 180 and 181: The present work aimed to investiga
Page 182 and 183: University College Dublin, School o
Page 184 and 185: 214 Cystic Ovarian Diseases in Dair
Page 186 and 187: inseminator were tested in regressi
Page 188 and 189: University of Nottingham, Animal He
Page 190 and 191: tissue (8,6 cm 2 ) was twice as lar
Page 192 and 193: libido in unmotivated males. Simila
Page 194 and 195: groups according to their diameter
Page 196 and 197: improve embryonic development are m
Page 198 and 199: in each sample). On day 0, 104 cows
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Page 202 and 203: and durable spermatozoa. Within the
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Page 212 and 213: 923 Production of Bovine Blackleg V
Page 214 and 215: Institute of Physiology and Sanocre
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Page 218 and 219: (I.M.) 1 mg of estradiol cipionate
Page 222 and 223: methods; ANOVA (with binary classif
Page 224 and 225: Initially two radiographs were obta
Page 226 and 227: number of positive faecal samples d
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Page 230 and 231: Key words: calf, active immunity, p
Page 232 and 233: 1 University of Camerino, Veterinar
Page 234 and 235: vaccinated (Group II) with Pastobov
Page 236 and 237: # Antigens Association in diarrhea
Page 238 and 239: 1015 Prevalence of Eimeria Infectio
Page 240 and 241: group showed higher serum lactate c
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Page 246 and 247: The goal of this paper is to expose
Page 248 and 249: 187 Cooling Strategies to Improve M
Page 250 and 251: inspections, carried out by specifi
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Page 256 and 257: POSTER ABSTRACTS 1225 The Effect of
Page 258 and 259: multiple fracture (n=1, 1.3%). The
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Page 262 and 263: Conclusions: It is the first presen
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Page 266 and 267: of 101.55±4.94 mmHg. Afterwards th
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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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