METHOD OF IMPROVING CATTLE FOR INCREASED PRODUCTIVE LONGEVITY

摘要

A method of improving the cattle to increase the productive longevity, is the selection of cows, characterized in that in the evaluation of cows and allow partipicheskie identify factors influencing the increase in productive longevity: the duration of the dry, the period of 54-57 days, the duration of the service period, 121-150 days, age at first calving of 32 months at a live weight of 481-490 kg, the level of milking heifers 3500-4500 kg of milk.