Title:	Genotypic and allelic frequencies of gene polymorphisms associated with meat tenderness in Nellore beef cattle.
Authors:	CARVALHO, M. E. ELER, J. P. BONIN, M. N. REZENDE, F. M. BIASE, F. H. MEIRELLES, F. V. REGITANO, L. C. de A. COUTINHO, L. L. BALIEIRO, J. C. C. FERRAZ, J. B. S.
Affiliation:	FZEA/USP; FZEA/USP; Bolsista/ Embrapa Gado de Corte; UFU; Auburn University; FZEA/USP; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; ESALQ/USP; FMVZ/USP; FZEA/USP.
Date Issued:	2017
Citation:	Genetics and Molecular Research, v. 16, n. 1, p. 1-15, 2017.
Description:	The objectives of this study were to characterize the allelic and genotypic frequencies of polymorphisms in the μ-calpain and calpastatin genes, and to assess their association with meat tenderness and animal growth in Nellore cattle. We evaluated 605 Nellore animals at 24 months of age, on average, at slaughter. The polymorphisms were determined for the molecular markers CAPN316, CAPN530, CAPN4751, CAPN4753, and UOGACAST1. Analyses of meat tenderness at 7, 14, and 21 days of maturation were performed in samples of longissimus thoracis obtained between the 12th and 13th rib and sheared using a Warner Bratzler Shear Force. Significant effects were observed for meat tenderness at days 7, 14, and 21 of maturation for the marker CAPN4751, at day 21 for the marker CAPN4753, and at days 14 and 21 for the marker UOGCAST1. For genotypic combinations of markers, the results were significant for the combination CAPN4751/UOGCAST1 in the three maturation periods and CAPN4753/UOGCAST1 at days 14 and 21 of maturation.
Thesagro:	Bos Indicus
NAL Thesaurus:	polymorphism
Keywords:	Nellore cattle
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPPSE)