Journal ArticleDOI
Genetic parameters for various growth, carcass and meat quality traits in a New Zealand sheep population
Luiz F. Brito,Luiz F. Brito,John C. McEwan,Stephen P. Miller,Stephen P. Miller,W. E. Bain,Michael Lee,Ken G. Dodds,Sheryl-Anne Newman,N. K. Pickering,Flavio S Schenkel,Shannon M. Clarke +11 more
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TLDR
The heritability estimates and phenotypic variances for the carcass and meat quality traits of New Zealand sheep populations suggest that most traits, apart from pH and meat yellowness, have sufficient phenotypesic and genetic variation to enable substantial genetic gains to be achieved through selection.About:
This article is published in Small Ruminant Research.The article was published on 2017-09-01. It has received 35 citations till now. The article focuses on the topics: Heritability & Marbled meat.read more
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Journal ArticleDOI
Whole-Genome Resequencing Reveals Loci Associated With Thoracic Vertebrae Number in Sheep.
Cunyuan Li,Ming Li,Xiaoyue Li,Wei Ni,Yueren Xu,Rui Yao,Bin Wei,Mengdan Zhang,Huixiang Li,Yue Zhao,Li Liu,Yaseen Ullah,Yu Jiang,Shengwei Hu +13 more
TL;DR: A genome-wide comparison between sheep with increased and normal numbers of thoracic vertebrae showed that the VRTN gene is the major selection locus for the number of thoracentre in sheep and has the potential to be utilized in sheep breeding in the future.
Journal ArticleDOI
Carcass characteristics and meat quality of commercial lambs reared in different forage systems
Yangfan Ye,Yangfan Ye,Nicola M. Schreurs,PL Johnson,Rene A. Corner-Thomas,Michael Agnew,Patrick Silcock,Graham T. Eyres,G. Maclennan,Carolina E. Realini +9 more
TL;DR: Lambs that were processed at weaning had heavier carcasses and greater loin intramuscular fat percentage and shear force values than lambs slaughtered after further finishing on pasture or chicory.
Journal ArticleDOI
Genetic correlations between meat quality traits and growth and carcass traits in Merino sheep
S.I. Mortimer,S.I. Mortimer,N. M. Fogarty,N. M. Fogarty,Julius H. J. van der Werf,Daniel Brown,Andrew Swan,Robin H. Jacob,Robin H. Jacob,G.H. Geesink,David L. Hopkins,David L. Hopkins,J. E. Edwards,J. E. Edwards,Eric N Ponnampalam,Robyn D. Warner,K.L. Pearce,K.L. Pearce,David W. Pethick,David W. Pethick +19 more
TL;DR: The genetic correlations indicated that selection of Merino sheep to either reduce fat or increase muscle using ultrasound assessments will result in little change in IMF and SF5, andNegligible changes are generally expected for LMY and meat color traits following selection for increased live weight.
Journal ArticleDOI
Comparative Transcriptome Analysis Identifying the Different Molecular Genetic Markers Related to Production Performance and Meat Quality in Longissimus Dorsi Tissues of MG × STH and STH Sheep.
TL;DR: The results will assist in understanding sheep heterosis and molecular marker-assisted selection, and the genetic molecular markers related to these characteristics remain unclear.
Journal ArticleDOI
Meta-analysis of genetic parameters for economic traits in sheep
Bruno Delphino Medrado,Bruno Delphino Medrado,Victor Breno Pedrosa,Luís Fernando Batista Pinto +3 more
TL;DR: The genetic parameters estimated can be used in breeding programs under the most different environmental conditions, as they were obtained through many studies with different situations, and can support the development of sheep breeding programs, especially in developing and underdeveloped countries.
References
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Linear models for the prediction of animal breeding values
TL;DR: A genetic evaluation with different sources of records and the best linear unbiased prediction of breeding value - univariate models with one random effect, non-additive animal models and dominance relationship matrix animal model for rapid inversion of the dominance matrix epistatis.
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Contribution of postmortem muscle biochemistry to the delivery of consistent meat quality with particular focus on the calpain system
TL;DR: Research efforts in this area should focus on elucidation of regulation of μ-calpain activity in postmortem muscle to develop reliable methods to predict meat tenderness and on the meat industry to produce a consistently tender product.
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A review of genetic parameter estimates for wool, growth, meat and reproduction traits in sheep
TL;DR: Genetic parameters for a range of sheep production traits have been reviewed from estimates published over the last decade and more accurate estimates of genetic parameters and correlations between economically important traits are required for accurate genetic evaluation and development of breeding objectives.
Journal ArticleDOI
Genetic Groups in an Animal Model
TL;DR: Rules are presented for assigning coefficients to the genetic group portion(s) of the mixed model equations after transformation to solve directly for total genetic value (group plus animal solutions) simultaneously for sires and cows using an animal model.