Tenderness

Single nucleotide polymorphisms in Brahman steers and their association with carcass and tenderness traits

T. Smith, Thomas, M. G., Bidner, T. D., Paschal, J. C., and Franke, D. E., Single nucleotide polymorphisms in Brahman steers and their association with carcass and tenderness traits, vol. 8, pp. 39-46, 2009.

Data from purebred Brahman steers (N = 467) were used to study the association of single nucleotide polymorphisms (SNP) with carcass traits and measures of tenderness. Fall weaned calves were grazed and fed in a subtropical environment and then harvested for processing in a commercial facility. Carcass data were recorded 24 h postmortem. Muscle samples and primal ribs were obtained to measure calpastatin activity and shear force. DNA was used to determine genotypes of thyroglobulin (TG5), calpastatin (CAST) and μ-calpain (CAPN 316 and CAPN 4751) SNP.

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