УДК 636.2:636.082

SELECTIVE-GENETIC ESTIMATION OF BULLS ON MILK PRODUCTIVITY POTENTIAL

R.N. Lyashuk, A.I. Shendakov, T.A. Shendakova

The authors presented the complex analysis of the parameters of milk productivity in mothers and daughters from Holsteined bulls of the Black-and-White breed of different origin, in cows of the Black-and-White breed after their breeding with Holstein bulls (in connection with blood relationship); they studied also the multiple correlation between these determinants and bulls parameters, determined the coefficients of hereditability and the indices of hereditary capacity, esti-mated the immunogenetic similarity of bulls on blood groups.

Key words: bull’s, cattle breeding, selection of cows, antigen’s of blood.

ФГОУ ВПО Орловский государственный
аграрный университет
,
302019 г. Орел, ул. Генерала Родина, 69,
e-mail: romanlyashuk@yandex.ru

Поступила в редакцию
5 мая 2008 года