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| Borges,Bárbara Oliveira; Curi,Rogério Abdallah; Baldi,Fernando; Feitosa,Fabieli Loise Braga; Andrade,Willian Bruno Fernandes de; Albuquerque,Lucia Galvão de; Oliveira,Henrique Nunes de; Chardulo,Luis Artur Loyola. |
| The objective of this work was to estimate the allele polymorphism frequencies of genes in Nellore cattle and associate them with meat quality and carcass traits. Six hundred males were genotyped for the following polymorphisms: DGAT1 (VNTR with 18 nucleotides at the promoter region); ANK1, a new polymorphism, identified and mapped here at the gene regulatory region NW_001494427.3; TCAP (AY428575.1:g.346G>A); and MYOG (NW_001501985:g.511G>C). In the association study, phenotype data of hot carcass weight, ribeye area, backfat thickness, percentage of intramuscular fat, shear force, myofibrillar fragmentation index, meat color (L*, a*, b*), and cooking losses were used. Allele B from the ANK1 gene was associated with greater redness (a*). Alleles 5R,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bos indicus; Ankyrin; Assisted selection; Beef cattle; Myogenin; Titin. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000500364 |
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| MacNeil,Michael D.. |
| ABSTRACT The objective of this research was to discern the contribution of genomic information to multiple-trait breeding objectives and thus understand the economic value of that information. True genetic values were simulated for each of n, possibly correlated, traits. These true genetic values, combined with uncorrelated random noise, resulted in both genomic and phenotypic estimated breeding values, EBVg and EBVp, respectively. The separate EBV were then merged (blended) as a function of their respective accuracies to produce a unified EBV for each of the n traits. Finally, for each simulated animal (N = 10000), the sum of products of economic weights and EBV was calculated to predict the economic value (net merit) of the individual. Accuracies of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal breeding; Assisted selection; Genetic gain; Production system. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200794 |
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