Digestibiliti of the fodder nutritives by bull-calves of different genotypes of aberdin-angus breed.

Kasprov R. V., Fedorovich E. I., Siratskiy I. Z.

The research results of living mass of pure-breed and cross-bred (1/2-, 3/4- and 7/8) Aberdin-angus bull calves and pure-breed bull-calves of Ukrainian black-and-white dairy breed in different age periods are given in this article. The coefficients of fodder nutritives digestibility by the bull-calves of the above-mentioned types in 12-and 18-month age were studied.

It was established, that the cross-bred and pure-bred Aberdin-angus bull-calves in all age periods (with the exception of new-born animals) by the indices of live mass exceeded their coevals of Ukrainian black-and-white dairy breed. Starting from the 6-month age this overbalance was probable. They also had probably higher (P<0,05) coefficients of organic substances, raw protein, raw fat, raw cellulose and BER.

Download full text in PDF formatF