The effect of the gene of the main fibroblast growth factor (FGF2) on the dairy productivity of Holstein cattle

Author:

Mukhanina E. N.1ORCID,Safina N. Yu.1ORCID,Shakirov Sh. K.1ORCID,Gaynutdinova E. R.1ORCID

Affiliation:

1. Tatar Scientific Research Institute of Agriculture “Kazan Scientific Center of Russia Academy of Sciences”

Abstract

The effect of polymorphism of the gene of the basic fibroblast growth factor (SNP11646 A/G) on the milk production of Holstein cows in the conditions of the Republic of Tatarstan was studied. The DNA of 270 full–aged cows was genotyped by PCR - PDRF. As a result, two FGFA – 0,591 and FGFG – 0,409 alleles were identified; and three FGFAA genotypes – 19,6% (53 goals) and FGFAG – 42,6% (115 goals), FGFGG – 37,8% (102 goals). The highest milk yield for full lactation and for 305 days of lactation, a high coefficient of lactation was noted in individuals with the genotype FGF2AG. The best milk quality indicators (high protein content, fewer somatic cells) were found in animals homozygous for the A allele. All cows have a high stable and smoothly decreasing lactation curve, the coefficient of lactation stability is higher for the GG genotype.

Publisher

Saint-Petersburg State University of Veterinary Medicine

Subject

General Medicine

Reference13 articles.

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