Vol. 9, Issue 1, Part O (2024)

Study revealed with polymorphic variants and their association with lactation length (LL) trait at κ-casein gene (CNS3) locus in Malvi and Nimari, cattle. The frequency of A allele was found to be highest as compared to B allele in above both breeds of cattle under the study. Chi-square values for testing correspondence between observed and expected genotypic frequencies at this locus were found to be non-significant in both Malvi and Nimari breeds of cattle, indicating that the populations of these animals were in Hardy-Weinberg equilibrium at this locus. Association of polymorphic variants of κ -Casein (CSN3) gene with lactation length (LL) revealed that the mean LL difference was found to be non-significant between AA and AB genotypes of Malvi, Nimari breed of cow.