Submitted by red on Thu, 14/02/2019 - 15:25
The genetic potential of the productive longevity of dairy cattle is high and is more than 12-15 years. The economic use of animals for 5-6 lactations, undoubtedly, reduces the costs of their breeding and culling of low-yielding animals at a fairly early age significantly. At the same time, the average age of these cows’ use at the enterprises of our country is about 3.0 of calving. The research was made in the breeding enterprise Agricultural Pedigree Complex “Plemzavod” Razliv “of the Kurgan region.