Beef

Single nucleotide polymorphisms in CAPN and leptin genes associated with meat color and tenderness in Nellore cattle

L. F. B. Pinto, Ferraz, J. B. S., Pedrosa, V. B., Eler, J. P., Meirelles, F. V., Bonin, M. N., Rezende, F. M., Carvalho, M. E., Cucco, D. C., and Silva, R. C. G., Single nucleotide polymorphisms in CAPN and leptin genes associated with meat color and tenderness in Nellore cattle, vol. 10, pp. 2057-2064, 2011.

We analyzed single nucleotide polymorphisms in calpain, leptin, leptin receptor, and growth hormone receptor genes and their association with color, drip and cooking losses of longissimus muscle at 7, 14 and 21 days postmortem in 638 purebred Nellore bulls slaughtered between 22 and 26 months of age. Meat samples were vacuum-packed and aged at 4°C. The single nucleotide polymorphisms T945M, GHR2, E2FB, and CAPN4751 were evaluated. All genotypic classes were observed; however, the T/T genotype of T945M and E2FB was found at a low frequency.

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