2026-10-29T22:40:56Zhttps://bayburt-rdlopen.rawdatalibrary.net/oai/requestoai:bayburt-rdlopen.rawdatalibrary.net:bayburt/132962026-10-29T19:52:13Zopenairedrivercom_bayburt_10000col_bayburt_10001com_bayburt_10007col_bayburt_10227Associations between prl/rsai polymorphism and some performance traits in holstein cattle reared under organic conditionOzdemir, M.Sonmez, Z.Aksakal, V.CattleMarkerPCR-RFLPPolymorphismProlactinThe aim of this study was to ascertain the RsaI polymorphism of the Prolactin (PRL) gene of 186 organically reared Holstein cattle by PCR-RFLP method, in order to reveal the genetic variation of the population, and to reveal the relationship between PRL/RsaI genotypes and some milk yield traits. In the study, the RsaI-/- genotype frequency, RsaI+/+ genotype frequency and RsaI-/+ genotype frequency of Holstein cattle were determined as 0.26, 0.22 and 0.52, respectively. The RsaI- gene frequency was 0.52, and the RsaI+ gene frequency was 0.48. Hardy-Weinberg genetic equilibrium test showed that the distribution of genotype frequencies was determined to be in genetic equilibrium. The relationships between PRL/RsaI polymorphism and the examined milk yield traits were not significant. As a result, an economic and safe method PCR-RFLP for the detection of genetic markers, was successfully used in the determination of the 3 genotypes (RsaI-/-, RsaI-/+, and RsaI+/+) of Prolactin gene in Holstein cattle reared under organic condition, and the results was similar with previously reported literature.Pakistan Agricultural Scientists Forum2021Articlehttps://rdlopen.rawdatalibrary.net/r/bayburt/13296https://doi.org/10.36899/japs.2021.3.02791018-7081enJournal of Animal and Plant Sciencesinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://bayburt-rdlopen.rawdatalibrary.net/tr/items/bayburt/13296