Selection and genetic aspects of the use of embryo transfer in cattle breeding

Modern methods of reproduction empower breeding and reproducing of cattle, both in terms of improving the efficiency of breeding work, and increase the reproduction of dairy herds product–efficiency. Among the various methods of special interest transplant embryos, since in modern dairy cattle crucial for the growth efficiency of cows due to genetic factors is the quality used in the cis–artificially inseminated bulls, along with which the trans–plantation embryos open the possibility to increase and Distribution as a geno–type bull–producer, and high yielding cows–record. The studies were conducted in the leading breeding plants of the Udmurt Republic. The material for the research served as production reports, data zootechnical and breeding records, cards breeding farms, livestock reports on the results of breeding work with cattle milk productivity direction (form no. 7 MOL), the database of information–analytical system “Seleks dairy cattle”. The research results revealed that the highest number of highly productive cows, which can be considered as potential donor cows in a herd is concentrated Michurin SKHPK — 14 heads, which is the average productivity for a yield of milk 10667 kg mass fraction of the fat and 3,81% protein and 3,19% respectively. In general, the productivity cows–record groups yield of milk differs slightly. It is worth noting that cows–record SEC “Udmurtia” herd differ protein highest — 3,23%. The highest fat content of cows in a herd breeding plant JSC “Uchkhoz The July IzhGSKHA” — 4,05%