THE PECULIARITIES OF BEHAVIOR OF DIFFERENT GENOTYPES MALE CALVES
The behavior of animals is characterized by a set of specific reflex movements and reactions. The type of behavior greatly affects growth, development and meat productivity of cattle. The article presents the results of the research of behavior of male calves of Ayrshire and Schwyz breeds and their cross-breeds with Hereford breed in different age periods to establish interbreed differences in behavior. The work was carried out in the Tula research Institute of agriculture in 2015-2017. In general, the result of the observations showed that mixed bred animals spend more time for eating and digesting food by 5-10%, which is connected with the productivity. In general it was stated that with advancing age the time spent on food increased 1.8 times, the time used for cud increased 1.6 times, it increased 1.7 times for standing. The mixed bred animals consumed more water than purebred. With advancing age, time for the water intake increased 2.2 times, 2.4 times for defecation, 1.7 times for urination. The greatest activity during the whole breeding period had male calves of purebred groups. When tie-up housing was chosen for the male calves, their inactive state increased rapidly. The movement reduced from 22% of the total time to 3%. The mixed bred animals derived from cross-breeds with the Hereford breed, were more phlegmatic. Both food and motional activities influence the productive qualities of male calves. However, the proportion of the food activity influences the live weight of animals more than the motor activity.