Productive qualities and exterior features of black-and-white breeds cows of different lines

The signs of milk production and the exterior of cows of different genealogical groups were investigated. According to the results of the assessment, differences between the groups in milk yield (2.3-8.5%), milk quality indicators (0.01-0.09%) and exterior features (1.9-5.8%) were revealed. The results are consistent with the studies of domestic and foreign authors, which established a high degree of hereditary conditionality of the productive potential and build of cattle. Is established the nature and magnitude of the correlative relationship between the signs of milk production and the exterior, which was not high and varied from -0.01 to +0.31, which is consistent with the results of other authors.