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Huang,Ai-xia; Li,Jin-jun; Shen,Jun-da; Tao,Zheng-rong; Ren,Jin-dong; Li,Guo-qing; Wang,De-qian; Tian,Yong; Yang,Fu-sheng; Ding,Wei-ping; Wu,Tian-xing; Lu,Li-zhi. |
We investigated the effects of crossbreeding on slaughter traits and the chemical composition of chicken breast muscle. Trials were conducted using 120 broilers from four lines: Xiao-Shan chicken (XS), Xian-Ju chicken (XJ), Xiao-Shan chicken♂♂ × Xian-Ju chicken♀♀ (Zhenan 1, ZNY1) and Xiao-Shan chicken♂♂ × (Guang-Xi Yellow chicken♂♂×Xian-Ju chicken♀♀) ♀♀ (Zhenan 2, ZNY2). The birds were slaughtered at 120 days of age and the slaughter traits were measured. Breast muscles were sampled to determine chemical composition. The slaughter traits of hybrid chickens were improved. Both hybrid strains had higher intramuscular fat (IMF) and inosine-5'-monophosphate (inosinic acid, IMP). Concentrations of monounsaturated fatty acids (MUFA) in breast muscles from the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid; Chicken; Crossbreeding; Fatty acid; Inosine-5'-monophosphate; Intramuscular fat; Slaughter traits. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000400005 |
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Gao,G; Wang,H; Zhao,X; Li,Q; Wang,C; Li,J; Zhang,K; Zhong,H; Wang,Q. |
ABSTRACT The objective of this work was to investigate the effect of feeding conditions on methylation status of FATP1 gene, which is an important candidate gene of Intramuscular fat and important indicator of chicken meat quality. We selected Daninghe (DNH) and Qingjiaoma (QJM) chickens under scatter-feeding and captivity-feeding conditions as experimental animals, and detected the methylation status of FATP1 genes in chicken breast muscle using Bisulfite Sequencing PCR method. The results showed that the methylation level of FATP1 in scatter-fed chicken was lower than in captivity-fed conditions in DNH and QIM chicken breast tissues; DNA methylation in the promoter and exon1 region was demonstrated to negatively regulate the expression of the FATP1 gene.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding conditions; Chicken; FATP1; Meat quality; Intramuscular fat. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000500055 |
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Pacheco,Paulo Santana; Restle,João; Alves Filho,Dari Celestino; Brondani,Ivan Luiz; Pascoal,Leonir Luiz; Kuss,Fernando; Menezes,Luís Fernando Glasenapp de; Neiva,José Neuman Miranda. |
The objective of the experiment was to study the carcass physical composition and meat qualitative characteristics of different categories of Charolais cattle, feedlot finished. Nine steers (ST), ten heifers (HE), with average age of 20 months, and ten cull cows (CO) with average age of 87 months, taken from the same herd, were used. Diet contained 13% of crude protein for ST and HE and 10% for CO, with roughage:concentrate relation of 50:50, on a dry matter basis. The animals of the three categories were slaughtered with similar degree of finishing, with average subcutaneous fat thickness of 3.8 mm. HE showed carcasses with greater pistolcut percentage (52.8%) than ST (51.0%) and CO (51.4%). The carcass physical composition was similar among the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Compensatory growth; Feedlot; Intramuscular fat; Primary cuts; Sexual condition. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100043 |
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