The milk yield of cows of different genotypes in conditions of instability of quality roughage
In order to study milk production of cows of different genotypes in breeding plant breeding Hol-mogory breed of cattle was carried out to study the conditions of feeding dairy cows. There heterogeneity of quality forage. Analyzed the milk production of cows of different lines, and the level of implementation of their genetic potential. The result revealed the relationship between the origin of the animals and the level of realization of the genetic potential for milk production indicators: in these conditions, better display their genetic potential of cows R. Sovering line and V.B. Ideal line.