Парное различие генетической структуры пород крупного рогатого скота по лактопротеинам

Луполова, Т.; Петку, В.; Гуминская, Е.; Макарова, А.

Парное различие генетической структуры пород крупного рогатого скота по лактопротеинам

2017

Луполова, Т. (Mozyr State Pedagogical University named after I.P. Shamyakin, Mozyr (Belarus) | Петку, В. | Гуминская, Е. | Макарова, А.

The work is aimed at studying the genetic polymorphism of the milk protein loci in Holstein andBlack Pied breeds and determining the genetic distance and similarity of these breeds. A total of 371 milk sampleswere collected from cows from two breeding farms. The population allele pool for the lactoproteins aS1-CN,b-CN, k-CN, b-LG was determined. Polymorphism was revealed in all loci. The most expressive one was the locusaS1-CN. Three alleles (A, B, C) were found in the population of Holstein breed and 4 alleles (A, B, C, D) in thepopulation of Black Pied breed. The locus b-CN had two allelic variants: b-CNA and b-CNB, the locusb-CNArecording a higher frequency in both populations. The locus k-CN had two alleles (A and B), the allele Arecording a higher occurrence in the population of Holstein breed. The value of genetic similarity between thestudied populations was of 0,7714.

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