|
|
Záchrana a regenerace plemene skotu české červinky
VACEK, Tomáš
The aim of the thesis was to create a clear literary study on saving the breed of the Czech Red cattle with the balance of the results achieved during the regeneration process. Work includes the regeneration process, related breeds, state aid, studbook, breeding bulls, numerous states, the number of farms with breeding conditions and the appreciation of the exterior. Within its processing, milk yield from database (123 lactations of 35 cows) was evaluated and compared with the breeding goal and literature. Fertility age at first calving (32 times) and interim (91 times) from the monitored cows were also evaluated. These data were then compared with the Polish Red Cattle. Meat performance was evaluated in relation to the growth of three breeders (113 individuals) and compared with the breeding goal and literature. Development of weight of cows and bulls from the 17th century to the early 21st century was also compiled from literature, and then compared with the Polish Red Cattle and Angler Cattle.The study suggests that state support has mostly declined during the years 1997 2015. Populations of the Czech Red cattle (198 individuals in 2015) and number of farms (30 pieces in 2015) have predominantly increased. Milk yield (2550 4409 kg, 4.18 to 4.30% fat and 3.46 to 3.50% protein) generally met the breeding goal. Age of first calving (30.5 months) and the interim period (439 days) lagged behind the Polish Red breeds. The meat production in heifers in one hundred days (110 kg) and at 365 days (267 kg) just met the breeding goal. In the case of the average daily gain increase (0.641 to 0.888 kg / day), the breeding goal has not been met. Bulls in one hundred days (130 kg) crossed the breeding goal, as well as for the average daily gain (1.001 to 1.055 kg / day). A comparison of the development of the weight of cows and bulls suggests that Czech Red cattle held approximately the same weight from the beginning of the 20th century (488 kg in the 21st century).
|
guest ::
