Introductory results of studies on genetic distinctiveness of White-back cattle
2003
Litwinczuk, Z. | Chabuz, W. | Stanek, P. | Jankowski, P. (Akademia Rolnicza, Lublin (Poland). Katedra Hodowli Bydla)
About 100 White-back cattle were localized and described. In 2001, blood samples were taken from 50 cows to examine the genetic differentiation of the cattle. Characterization of genetic differentiation of White-back cattle carried out at the Institute of Genetics and Animal Breeding in Jastrzebiec based on the number of alleles showed that in the population of 50 individuals, in 26 analysed loci of DNA microsatellites, 193 alleles were identified. The number of alleles in loci ranged from 2 (locus LSTS005) to 13 (locus TGLA and HEL) which indicated the high genetic variability of this cattle. The evaluated White-back cows kept in small individual farms in Eastern Poland represented a similar type to that evaluated by Pajak nearly 50 years ago near the Biebrza river. The results of milk protein polymorphism indicated that the frequency of rare genes, such as alpha s1- Cn C - amounted to 0.15, beta - Cn B - 0.15, and kappa -Cn B-0.50 were significantly higher than cows from White-back mass population in the Lublin region
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