Czech Journal of Animal Science, 2006 (vol. 51), issue 9
Change of amino acid profile in Charolais cows' colostrum and transient milk during the first week post partum
R. Zándoki, J. Csapó, Z. Csapó-Kiss, I. Tábori, Z. Domokos, E. Szűcs, J. Tőzsér
Czech J. Anim. Sci., 2006, 51(9):375-382 | DOI: 10.17221/3954-CJAS 
In this study the change in amino acid profile in cow's colostrum and transient milk during the first week after parturition was examined in a Hungarian Charolais herd. Experiments were carried out with n = 37 Charolais cows in the same herd in the spring (March-April) of two consecutive years (Experiment 1: 2002, n = 15; and Experiment 2: 2003, n = 22). Colostrum and milk samples were taken by hand milking immediately after delivery, and in 24, 48, 72, and 168 hours post partum. Amino acid contents (%) in samples were measured in milk protein with an automatic amino acid analyser. Data were processed by the software...
Relationships between external and internal udder measurements and the linear scores for udder morphology traits in dairy sheep
M. Milerski, M. Margetín, A. Čapistrák, D. Apolen, J. Špánik, M. Oravcová
Czech J. Anim. Sci., 2006, 51(9):383-390 | DOI: 10.17221/3955-CJAS
Udder morphology traits were measured and subjectively assessed by the use of linear scores in 266 ewes of Tsigai (T), Improved Walachian (IW) and Lacaune (LC) dairy breeds. Animals were recorded repeatedly within and between lactations, therefore 772 sets of measurements and linear scores were collected in total. Udder measurements included: udder length, udder width, rear udder depth, cistern depth, teat length, teat angle, sum of cistern cross-section areas scanned by the ultrasound technique from the side and from the bottom in a water bath. Linear scores were assessed for: udder depth, cistern depth, teat placement, teat length, udder attachment,...
Breeding for sustainability: Effect of breed on cultural energy expenditure of lamb production
H. Koknaroglu, A. Ali, D.G. Morrical, M.P. Hoffman
Czech J. Anim. Sci., 2006, 51(9):391-399 | DOI: 10.17221/3956-CJAS
Two-year data from terminal study conducted to evaluate post-weaning growth and carcass traits of Texel, Suffolk and Columbia sired offspring were used to evaluate the effect of breed on cultural energy expenditure of lamb production. Each year whiteface ewes (n = 82) composed of primarily Polypay × Dorset ewes were exposed to Texel, Suffolk or Columbia rams for 35 days in the breeding season. The ewes were wintered outdoors on average-quality lucerne hay according to NRC (1985) requirements and were not provided any concentrate during late gestation or lactation. A total of 279 lambs were born with an average of 1.7 lambs per ewe and weaned...
Parthenogenetic development of rabbit oocytes after electrical stimulation
A. Wierzchos
Czech J. Anim. Sci., 2006, 51(9):400-405 | DOI: 10.17221/3957-CJAS
The aim of this study was to determine the effect of electric pulses on the structural and functional condition of rabbit oocytes. The New Zealand White female rabbits at 3-5 months of age and at 3-4 kg body weight served as oocyte donors. Oocytes after flushing from the oviducts were placed between two electrodes in an electroporation chamber which was filled with a dielectric solution. Following a short incubation in B2 medium, oocytes were subjected to an electric pulse released by an electrical pulse generator. Oocytes were then incubated in 500 µl of B2 medium supplemented with 20% foetal calf serum (FCS) at 38°C in an atmosphere of 5% CO2...
Prediction of the meat content of the carcass and valuable carcass parts in French lop rabbits using some traits measured in vivo and post mortem
D. Michalik, A. Lewczuk, E. Wilkiewicz-Wawro, W. Brzozowski
Czech J. Anim. Sci., 2006, 51(9):406-415 | DOI: 10.17221/3958-CJAS
The experiment was performed on 60 French lop rabbits raised under extensive conditions and sacrificed at body weight of about 3 kg. It was found that the best indicators of meat weight (g) in rabbit carcasses were body weight, head width and lower thigh length among the traits measured in vivo, and carcass weight, chest girth and thigh circumference among the traits measured post mortem. In vivo prediction of saddle meatiness may be based on body weight, trunk length and thigh length, whereas post-slaughter estimation - on carcass weight, hip circumference and thigh circumference. Total meat weight in the hind half of the...
The use of extruded chickpeas in diets of broiler turkeys
V. Christodoulou, V.A. Bampidis, B. Hučko, Z. Mudřik
Czech J. Anim. Sci., 2006, 51(9):416-423 | DOI: 10.17221/3959-CJAS
In an experiment with 200 one-day-old broiler turkeys, the effect of partial and total replacement of soybean meal with chickpeas (Cicer arietinum L.) on productivity and meat composition was determined. In the 12-week experiment, turkeys were allocated to five dietary treatments: ECKP0, ECKP200, ECKP400, ECKP600 and ECKP800 of 40 birds each, and received a diet ad libitum. The diet for ECKP0 treatment contained no chickpeas (control), while those for treatments ECKP200, ECKP400 ECKP600 and ECKP800 included 200, 400, 600 and 800 kg/t of wet extruded (at 120°C for 20 s) chickpeas, respectively. Replacement of soybean meal with extruded...