Optimization of large-scale breeding program of Belarusian black-motley breed of cattle | Оптимизация программы крупномасштабной селекции скота белорусской черно-пестрой породы
2012
Grin, M.P. | Koronets, I.N. | Klimets, N.V. | Dashkevich, M.A. | Krasovskaya, V.M. | Shemetovets, Zh.I., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
In the conditions of the Republic of Belarus there was realized the study to optimize the selection process in the population of cattle of Belarusian black-white breed and to determine the best option program of large-scale breeding. Perfect variant according to value of genetic progress and economic efficiency of large scale selection of livestock of Belarusian black-motley breed, according to which the number of cows of active part of the population is 480,000, the number of genealogical lines (complexes)in the breed – 6, the number of fathers of bulls in the complex – 2, the semen pool from one bull checked – 30 thousand doses, the number of 'effective' daughters to test the bull by offspring – 50, the number of repair calves for elevers – 535, the number of bulls selected on the quality of offspring, - 108. The program will provide genetic progress of breeding population on milk yields at 40 kg of milk per cow annually, the rate of genetic progress of population increases by 1,08 %. Cost-effectiveness of the program will make 159%.
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Эту запись предоставил National Academy of Sciences of Belarus