племенная ценность

Influence of bulls on the reproduction indicators of daughters taking into account their productivity

Submitted by red on Wed, 28/10/2020 - 10:32

The main objective of the development of dairy cattle breeding is to increase

the breeding productive characteristics, taking into account the preservation of the

reproductive qualities of animals. The research was conducted on the basis of data

from the breeding plant for black-and-white cattle breeding OOO “Zazerkalie” in the

Vologda region. Bulls-improvers were determined by the complex of selected traits,

taking into account the linear affiliation: Meson 3097402441; Retirement 11720463 of

Submitted by red on Thu, 30/07/2020 - 14:19

Studies were conducted on controlled populations of dairy cattle of

Ayrshire, Kholmogory, Yaroslavl, black-and-white breeds of breeding farms in the

Vologda region. It has been revealed that the sires of domestic selection have a greater

degree of influence on the productive indices of their daughters than foreign ones do.

The calculation of the breeding value of bulls in terms of their daughters’ productivity

has been carried out, and on the basis of a comparative analysis the best producers