Характеристика региональных популяций быков-производителей по генам наследственных заболеваний

Based on results of DNA testing performed in laboratory of molecular genetics expertise of the All-Russian state research institute of animal breeding of the Russian academy of agricultural science the characteristic of the frequency of animals carrying the heredity defect CVM (complex vertebral malformation) and BLAD (bovine leukocyte adhesion deficiency) in breeding and young bulls was done. The average frequency of mutant alleles caused CVM and BLAD was 2.77 and 2.17 per cent, respectively. The analysis of aria distribution of bulls carrying the recessive CV allele showed that the maximal carriers' number was in Central, North-west and Privolzhskij territory. The efficiency of DNA diagnostic for decrease of the carriers' frequency in Holstein cattle population in Russia was shown.