Study of Prolactin gene associations with milk production traits in Iranian proved Holsteins

Sadeghi, Mostafa and Mokhber, Mahdi and Moradi Shahrbabak, Mohammad Study of Prolactin gene associations with milk production traits in Iranian proved Holsteins. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

A total of 130 Iranian Holstein bulls were used to study polymorphisms of the prolactin (PRL) gene. The genotypes were detected by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). The frequencies of A and G alleles for PRL gene were 0.873 and 0.127, respectively. The, PRL-RsaI genotypes distributed according to the Hardy–Weinberg equilibrium (P>0.05). No significant correlation (P>0.05) was found between genotypes of the PRL-RsaI, with studied milk production traits. It may be necessary to carry out further studies with larger sample sizes to make a clear results between detected variants and milk production traits.

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