Genetic polymorphism of some proteins in the milk of carpathian goat
Scientific Papers Animal Science and Biotechnologies(2023)
摘要
The paper presents some aspects of the polymorphism of some Carpathian goat milk proteins. The Carpathian breed is the main breed of goats reared in Romania. The optimal working conditions were determined for the identification of the casein phenotypes. The technique of the polyacrylamide gel electrophoresis was used. The milk samples were processed to remove the fat and whey and the migration was done in the presence of a standard sample which contained proteins with different molecular weights. The interpretation of the electrophoresis migrations revealed the presence of two genotypes, the homozygous genotype β-Cn BB and the heterozygous β-Cn AB. The homozygous genotype β-Cn AA was not identified in any individual. The heterozygous genotype β-Cn AB displayed a high frequency (59%) and it was observed in 10 individuals. The homozygous genotype β-Cn BB was observed in 7 individuals and it had a frequency of 41%. The homozygous genotype β-Cn AA has not been identified in the studied population. The distribution of these genotypes showed that allele β-CnB was predominant (70%) over allele β-can (30%).
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关键词
goats,milk polymorphism,casein
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