Genetic characteristics of Holstein cattle by DNA microsatellites
The results of genetic characteristic of 300 heads of Holstein cattle, brought from the Northern Trans-Urals at Khabarovsk region by 15 microsatellite loci of DNA are presented in this article. It was determined that in he group of animals being understudy the number of alleles on one locus was 8.8 while effective alleles - 4.5. In general 132 alleles were revealed, four of them met often: 102 (locus CSRM 60), 117 (locus ETH 3), 117 (locus TGLA 126), 258 (locus SPS 115) with frequency from 0.538 to 0.587. The greatest level of genetic variety was characterised by locus TGLA 122, it had a maximum number of alleles - 20. The middle level of the observed and expected heterozygosity for all the studied loci was 0.700. The high level of heterozygosity testifies to the genetic variety of corresponding animal genome loci.