Pustotina G.F., Surundaeva L.G., Arguneeva O.N.
SYSTEM APPROACH TO THE APPRAISAL OF REPRODUCTIVE FUNCTION OF COWS ^{[№ 10 ' 2006]}
The researches results of studying of paratypic and genotypic factors influence on cows reproductive ability accounting oh which allows increasing the number of calves on 100 dams are given in this article.

Pustotina G.F.
EFFECTIVENESS OF MILK PRODUCTION OF COWS WITH DIFFERENT GENOTYPES ^{[№ 9 ' 2006]}
The material characterized economic effectiveness of milk production of thoroughbred symmentical cows rearing and their mixtures with different blood part of Holstein red-variegated and black-variegated populations is given in this article.

Pustotina G.F.
APPLICATION OF POPULATION GENETICS METHODS IN BREEDING WORK WITH LARGE HORNED CATTLE ^{[№ 12 ' 2005]}
In the article the material is submitted on application of modern methods of selection with simmentalskaya breed of large horned cattle. Biological, selection parameters of the given population are investigated, and with the account of economic situation in the industry the program of the selection is developed, allowing to optimize the parity of variables and constant factors and to reveal the optimal at which the highest genetic progress of a population with the least expenses for its introduction turns out.