AYRSHIRE CATTLE IN THE BREEDING FARM. V.I. CHAPAEV KRASNODAR TERRITORY: TRIBAL CHARACTERISTICS IN THE DYNAMICS OF RECOVERY FROM LEUKEMIA
For the first time at the population level, with varying degrees of compromised animals to leukemia are given (in the dynamics of recovery) changes in the qualitative composition of herds, milk production of cows, their interior indicators. It is shown that the recovery of the herd from leukosis (BLV) infection is possible to create a gene pool of cattle with higher resistance and productivity, a higher breeding qualities.