Validation Study of SNPs in CAPN1-CAST Genes on the Tenderness of Muscles ( and ) in Hanwoo (Korean Cattle).

Previous studies demonstrated that polymorphisms in the μ-calpain () and calpastatin () genes had significant effects on meat tenderness in different cattle populations. The aim of this study was to validate the potential association of seven single nucleotide polymorphisms (SNPs) harbored in these two candidate genes with meat tenderness in the (LT) and (SM) muscles. A total of 1000 animals were genotyped using TaqMan SNP genotyping arrays, and the meat tenderness of two muscle (LT and SM at 7 days post-slaughter) was assessed based on Warner-Bratzler WBSF (WBSF) testing.