Research Article

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L.N. Silva; E. Gasparino; R.A.A.Torres Júnior; E. Filho; L.O.C. Silva; M.M. Alencar; M.D.Souza Júnior; J.V.F. Battistelli; S.C.C. Silva
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Beef cattle; Genetic parameter; Greenhouse gas; Prediction equation

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Carcass traits; Cattle; Heritability; Slaughter end points

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Qinchuan is a red or yellow draft and beef breed in China. In order to identify a predictor of carcass traits on the basis of associations between carcass traits and gene polymorphism, variation in the bovine chemerin gene was investigated using PCR-single-strand conformational polymorphism and DNA sequencing. An SNP of A868G located in exon 2 of the Bos taurus chemerin gene was ... more

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Many QTLs for fatness traits have been mapped on pig chromosome 7q1.1-1.4 in various pig resource populations. Eight novel markers, including seven SNPs and one insertion or deletion within BTNL1, COL21A1, PPARD, GLP1R, MDFI, GNMT, ABCC10, and PLA2G7 genes, as well as two previously reported SNPs in SLC39A7 and ... more

W.H. Huang; Z.X. Ma; Z.Y. Xu; Y.Z. Xiong; B. Zuo
11/29/2011
Carcass traits; Heritability; Repeatability; Ultrasound

Real-time ultrasound is currently used for in vivo carcass evaluation of beef cattle. We estimated heritability and repeatability coefficients for ultrasound-measured carcass traits in Nelore cattle. We measured longissimus muscle area, backfat thickness, and rump fat thickness in male and female animals ranging in age from 10 to 26 months. The variance components were estimated ... more

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Association study; Carcass traits; Cattle; Microsatellite markers

Investigation of molecular marker effects on production traits is essential to define marker assisted selection strategies in beef cattle. We looked for a possible association of molecular markers and backfat thickness (BFT) and rib eye area (REA) in Canchim (5/8 Charolais + 3/8 Zebu) and MA (offspring of Charolais bulls and 1/2 Canchim + 1/2 Zebu cows) animals raised exclusively on ... more

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Carcass traits; Correlations; Crossbred cattle; Growth; Random regression

A joint growth-carcass model using random regression was used to estimate the (co)variance components of beef cattle body weights and carcass quality traits and correlations between them. During a four-year period (1994-1997) of the Australian “southern crossbreeding project”, mature Hereford cows (N = 581) were mated to 97 sires of Jersey, Wagyu, Angus, Hereford, South Devon, Limousin, ... more

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Carcass traits; Crossbred pig; meat quality

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Y.Z. Jiang; L. Zhu; G.Q. Tang; M.Z. Li; A.A. Jiang; W.M. Cen; S.H. Xing; J.N. Chen; A.X. Wen; T. He; Q. Wang; G.X. Zhu; M. Xie; X.W. Li
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The titin immunoglobulin domain (TTID) protein localizes to the Z line in muscle and binds to alpha-actinin and gamma-filamin. It plays an indispensable role in stabilizing and anchoring of thin filaments. In this study, the 5'-regulatory region of the porcine TTID gene was analyzed with bioinformatic methods. Another objective of this study was to further investigate the ... more

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