Ecology, Environment and Conservation Paper

PRODUCTIVE LONGEVITY OF COWS DEPENDING ON THE GENOTYPE OF THE GROWTH HORMONE GENE

Gulshat Shaikamal, Natalya Papusha, Gulzhan Mussayeva, Aigerim Kazhiyakbarova, Indira Beishova, Alena Belaya, Vadim Ulyanov and Tatyana Ulyanova

Abstract

An analysis of the influence of the growth hormone genes and insulin-like growth factor 1 on the quality of milk and the milk productivity of the Holstein breed has been made. The preferred for the Holstein breed bGH-AluIVV genotype has been identified, which is associated with the higher rates of the life-long milk yield per entire lactation, the life-long milk yield per 305 days, the life-long milk fat yield, and the life-long milk protein yield.