Veterinární medicína, 2003 (vol. 48), issue 1-2
Follicular growth patterns in repeat breeder cows
C.C. Pérez, I. Rodríguez, F. Espańa, J. Dorado, M. Hidalgo, J. Sanz
Vet Med - Czech, 2003, 48(1):200 | DOI: 10.17221/5743-VETMED 
The aim of this study was to examine follicular development patterns in eighteen repeat breeder cows through natural oestrus cycles. Ovarian ultrasonographic examinations over 32 days after artificial insemination revealed that two follicular waves were the predominant patterns in animals with this syndrome (72.2%). Cycles with one or four waves rarely appeared. The ovulatory follicular diameter (day 0) was larger (P < 0.01) in cycles with a small number of waves; no differences were detected between ovulatory and anovulatory dominant follicles. Progesterone plasmatic concentrations were determined by RIA and differences were not significant when...
Effect of climatic influences on the migrations of infective larvae of Cyathostominae
I. Langrová, I. Jankovská, M. Borovský, T. Fiala
Vet Med - Czech, 2003, 48(1):200 | DOI: 10.17221/5745-VETMED
Migration to herbage of Cyathostominae from experimentally deposited fresh or incubated faecal samples containing a known number of cyathostome L3 was studied in the Czech Republicfor up to 1 year. It was found out that most larvae remained quite close to the faecal samples. Of all larvae recovered from herbage 89.18% were collected within 10 cm of the faeces. Temporal variation in the presence of Cyathostominae larvae on vegetation may account for poor recovery of Cyathostominae L3 in the field. A few infective larvae (0.05?2.74% of the larvae placed on the plot) were found as far as 30 cm from the faeces after 1 or 2 weeks. The number of larvae...
Quantitative methods to determine factors affecting profits of lamb fattening enterprises
Y. Cevger
Vet Med - Czech, 2003, 48(1):200 | DOI: 10.17221/5746-VETMED
The purpose of this study was to demonstrate the use of profit function regression model as a possible practical decision support tool in the lamb meat production. It was found that all independents variables except ?Fattening Duration?, ?Capacity Use?, ?Total Other Expenditures? and ?Number of Lambs?, had strong statistical associations (P < 0.01) with the profit from per kg live-weight. Because marginal impact of each independent variable on the profit was the estimated co-efficient value, they could simply be used to evaluate ?what-if scenarios? and the risk of investment under changing circumstances in lamb meat production. It is, therefore, intended...
Egg production, egg quality, and lipid peroxidation status in laying hens maintained at a low ambient temperature (6°C) and fed a vitamin C and vitamin E-supplemented diet
O. Kucuk, N. Sahin, K. Sahin, M. F. Gursu, F. Gulcu, M. Ozcelik, M. Issi
Vet Med - Czech, 2003, 48(1):200 | DOI: 10.17221/5747-VETMED
This experiment was conducted to evaluate the effects of vitamin C (L-ascorbic acid) and vitamin E (?-tocopherol acetate) on egg production, egg quality, lipid peroxidation status (measured as MDA), and some serum metabolites in laying hens (Hy-Line) maintained at a low ambient temperature (6°C). One hundred and twenty laying hens (18-wk-old) were divided into four groups, 30 hens per group. The laying hens were fed either a basal diet or the basal diet supplemented with either 250 mg of L-ascorbic acid/kg of diet, 250 mg of ?-tocopherol acetate/kg of diet or 250 mg of L-ascorbic acid plus 250 mg of ?-tocopherol acetate/kg of diet. Although feed consumption...
Treatment of canine hip dysplasia using triple pelvic osteotomy
K. Altunatmaz, R. Yucel, Y. Devecioglu, M. Saroglu, S. Ozsoy
Vet Med - Czech, 2003, 48(1):200 | DOI: 10.17221/5748-VETMED
In this study, triple pelvic osteotomy (TPO) was carried out in a total of 22 dysplastic dogs, of which 9 were treated bilaterally and 13 unilaterally, and the position of the acetabulum was changed in a total of 31 hip joints using a special plate. It was established that, of the treated hip joints, 16 had severe, 12 medium and 3 mild dysplasia, the Norberg angle was between 70?92° and that the covering rate of the acetabulum over the femoral head changed between 5?42°. In the radiographs taken immediately after the operation, the covering rate of the acetabulum over the femoral head was determined to be very good in 25 hip joints (75% and over) and...
Tuberculosis in cattle caused by IS901+ Mycobacterium avium subsp. avium ? a case report
M. Ocepek, M. Pate, M. Zolnir-Dovc, Z. Cvetnic
Vet Med - Czech, 2003, 48(1):200 | DOI: 10.17221/5749-VETMED
In a small cattle herd an eight-year-old cow showed a reaction to bovine tuberculin in two consecutive skin tests. The animal showing clinical signs related to tuberculosis was slaughtered for diagnostic purpose. The lungs were completely covered with disseminate tubercles of different sizes and the mediastinal lymph nodes were enlarged. Pneumonia granulomatosa tuberculosa and lymphadenitis hyperplastica chronica were diagnosed histologically. Mycobacterium avium subsp. avium of IS901+ and IS1245+ genotype was isolated from lungs and from the lymph node. Six weeks after the affected animal has been eliminated from the herd, the skin test in other animals...
Comparative studies of early season moxidectin treatment and conventional ivermectin/ benzimidazole treatments in the control of cyathostomes in horses
I. Langrová, I. Jankovská, M. Borovský
Vet Med - Czech, 2003, 48(1):200 | DOI: 10.17221/5744-VETMED
Moxidectin administered in January or February at a single dose was tested for efficacy in horses on two farms for 12 and 11 months, respectively. Horses were infected with cyathostomes naturally in the previous grazing period. Forty horses of farm 1 and 20 horses of farm 2 were used in controlled tests to evaluate the efficacy of moxidectin 2% gel formulation at the dosage 0.4 mg moxidectin per kg of live weight, ivermectin commercial paste formulation at the dosage 0.2 mg ivermectin per kg of live weight, mebendazole and fenbendazole commercial paste formulation at the dosage both 7.5 mg mebendazole and fenbendazole per kg of live weight, all applied...