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inseminator were tested in regression models and terms were retained in the model if influential. Five days after treatment, the proportion of cattle with more than one CL was 72% and 7% (P11,000 kg of milk/cow/year, and use automatic pedometry systems (recording cow steps) for heat detection. A controlled randomized trial was conducted from July 2006 until December 2007. Anoestrus cows were treated according to each farm protocols. Total of 1450 cows of all lactations after artificial insemination (AI) were randomly allocated into tow nearly equal groups: US and RP. The RP cows were submitted to PD by fetal membrane slip technique between days 42-48 after AI, and the US cows were PD between days 26-32 after AI and reexamined by RP between days 42-48 after AI. Cows which were detected on heat between AI and the set PD time in each group were reinseminated. Results: Days open were 122 and 123 in herd B and 115 and 115 in herd A, in the US and in the RP groups respectively, with no statistically significant differences. The overall conception rate from first insemination was 42.7 for herd A and 44.3 for herd B. The groups did not differ significantly in following reproductive risk factors: endometritis, ketosis, negative energy balance and summer calving. Most of the active open cows were detected on heat and reinseminated before reaching the first PD. The EED rate in the US group, measured by the drop of pregnancy rate between the day 26-32 and the day 42-48 PD, was 5.9% and 6.1% in farm A and B respectively. Conclusion: There was no difference in days open and therefore no reproductive benefit in early ultrasound pregnancy diagnosis in these cows herds. As part of the open cows were detected on heat before the US PD and the true anestrous cows take longer to conceive, the potential 16 days advantage in days open for the US cows was reduced to an insignificant difference. 303 Resynchronization and Early Pregnancy Detection may Enhance Reproductive Performance of Lactating Dairy Cows A. Niasari-Naslaji 1 , M. Bolourchi 1 , S. Shabani 2 , D. Nikjou 1 , A. Moghiseh 1 1 Faculty of Veterinary Medicine, University of Tehran, Department of Clinical Sciences, Tehran, Iran 2 Bosatn Agro-Inductrial Co, Hashtgerd, Iran Early identification of non-pregnant cows using ultrasonography and their resynchronization using GnRH-PG protocol has been applied recently as a managerial tool to enhance reproductive performance of lactating dairy cows. During 8 months study in a well-managed dairy farm, 141 healthy lactating dairy cows, without any particular reproductive problems, >45 days open, were selected, randomly assigned into two group at the time of AI and monitored until they became pregnant. Experimental cows were inseminated 12 hrs after observing standing estrus using frozen semen. Cows in control group (n=67) did not receive any treatment. On Day 20-25 after AI, cows in treatment group were scanned ultrasonically (Sonovet 2000, 5-9 184 XXV. Jubilee World Buiatrics Congress 2008 MHz linear rectal transducer) for the characterization of follicle and CL on the ovary and given an ovulating dose of GnRH (15 µg Luliberin-A, Vetaroline, Aburaraihan, Iran). On Day 27-32 after AI, pregnancy was diagnosed using ultrasonography and non-pregnant cows received prostaglandin F2 analogue (PG, 500 µg cloprostenol). Cows that returned to estrus were re-inseminated 12 hrs after observing standing estrus. Pregnancy was rechecked on Day 50-60 days after AI by rectal examination. Data with discrete nature were analyzed using Genmod procedure including logit in the model and data with continuous nature were subjected to GLM procedure following appropriate transformation. On Day 20-25 after AI, ovarian follicle (16.8±0.42; 10-30 mm) and CL (27.8±0.45; 15-35 mm) were recorded for resynchronized cows. The number of days open, the days from AI, followed by resynchronization, to pregnancy and total services per conception were significantly higher (P
a better indicator for progesterone synthesis of the luteal gland in cyclic cows. For this reason luteal size (LS), luteal blood flow (LBF) and plasma progesterone level (P4) were examined during the estrous cycle in 14 cyclic Holstein Friesian cows. Examinations were carried out on Days 3, 6, 9, 11, 13, 15 and 18 of the estrous cycle (0 = day of estrus). LS was quantified by measuring the maximum cross-sectional area of the CL on a digitized B-mode image and P 4 was determined by EIA. LBF was investigated using Power Doppler Mode. The maximum area of colour pixels within the Corpus luteum (CL) represented luteal blood flow as a semiquantitative parameter for luteal perfusion. During the estrous cycle similar patterns of changes in LS, LBF and P 4 occurred (r > 0.90; P < 0.0001). The parameters increased between Days 3 and 9 (P 4) and 11 (LS, LBF), respectively, stayed at constant levels until Days 13 (LS) and 15 (LBF, P 4), respectively. LS decreased (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
Page 136 and 137: complete random design (CRD). The r
Page 138 and 139: - Ca, Mg, K, and Ca:P ratio were lo
Page 140 and 141: 818 Cerebral Coenurosis in a Goat:
Page 142 and 143: concentrations of the goat milk, in
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Page 146 and 147: cm long and 1/48 cm diameter. Middl
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Page 150 and 151: 847 Llama Anesthesia for Orthopedic
Page 152 and 153: 28 Preliminary Results of a General
Page 154 and 155: Israeli commercial dairy herds cons
Page 156 and 157: 109 Association between Johne’s D
Page 158 and 159: 195 Changes in Plasma Beta-Carotene
Page 160 and 161: In the last year 2006, in the perio
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Page 164 and 165: was a cumulative incidence rate of
Page 166 and 167: The level of antibodies produced in
Page 168 and 169: 1096 Determination of Risk Indicato
Page 170 and 171: ParaCheck, CSL/Biocor, Australia (C
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 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
Page 200 and 201: 1 Warsaw University of Life Science
Page 202 and 203: and durable spermatozoa. Within the
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Page 206 and 207: the median number of attempted moun
Page 208 and 209: 909 The effect of “GnRH” and
Page 210 and 211: 3 COOPEVOLIA, Centre Zootechnique,
Page 212 and 213: 923 Production of Bovine Blackleg V
Page 214 and 215: Institute of Physiology and Sanocre
Page 216 and 217: 2 University College Dublin, Animal
Page 218 and 219: (I.M.) 1 mg of estradiol cipionate
Page 220 and 221: Lameness results in major economic
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
Page 228 and 229: Pfizer Animal Health, Veterinary Me
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
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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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