Advances in Agriculture, Food Science and Forestry

Relationship between prolactin quality polymorphism and milk creation in montebeliard cows

Abstract


Mendy Barthez and Yohan Great

Prolactin (PRL) is one of the multi-purpose hormones of the pituitary gland in terms of biological actions especially milk production. In this study associations were analyzed between polymorphisms of the prolactin gene (PRL-RsaI) and milk production traits of Montebeliard cows. PCR-RFLP method was used for identification of genotypes. Frequencies of genotypes were 0.81, 0.15 and 0.04 for A/A, A/B and B/B, respectively. The frequency of PRL A allele is 0.89. The results show AA cows yielded most milk in compared of other groups.

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