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Effect of sex and age on bovine muscle and adipose fatty acid composition and stearoyl-CoA desaturase mRNA expression
L. Bartoň, D. Bureš, T. Kott, D. Rehák,
Jazyk angličtina Země Velká Británie
Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem
- MeSH
- kosterní svaly chemie enzymologie MeSH
- kyseliny mastné mononenasycené analýza MeSH
- mastné kyseliny analýza MeSH
- messenger RNA genetika metabolismus MeSH
- nenasycené mastné kyseliny analýza MeSH
- podkožní tuk chemie enzymologie MeSH
- polymerázová řetězová reakce s reverzní transkripcí MeSH
- regulace genové exprese MeSH
- sexuální faktory MeSH
- skot MeSH
- stearyl-CoA-desaturasa genetika metabolismus MeSH
- věkové faktory MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- skot MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
The objective of the study was to investigate the effects of sex and slaughter age on the fatty acid (FA) composition and stearoyl-CoA desaturase gene expression in muscle and adipose tissue. Twenty-four Charolais × Simmental crossbred bulls and heifers were raised under similar conditions and slaughtered at 14 or 18 months of age. The total amount of FA in muscle increased markedly in older animals with higher contents of monounsaturated FA (MUFA) in heifers than bulls. The proportions of MUFA and desaturation indices were higher in heifers, whereas polyunsaturated FA were higher in bulls in both muscle and subcutaneous adipose tissue. The results of this study demonstrated sex-dependent differences in the FA composition of muscle and subcutaneous adipose tissue from cattle slaughtered at different ages. The expression of the stearoyl-CoA desaturase gene was higher in the adipose tissue of heifers compared to bulls, and its variation partly contributed to sex- and age-differences in the FA composition of bovine adipose tissue.
Citace poskytuje Crossref.org
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- $a The objective of the study was to investigate the effects of sex and slaughter age on the fatty acid (FA) composition and stearoyl-CoA desaturase gene expression in muscle and adipose tissue. Twenty-four Charolais × Simmental crossbred bulls and heifers were raised under similar conditions and slaughtered at 14 or 18 months of age. The total amount of FA in muscle increased markedly in older animals with higher contents of monounsaturated FA (MUFA) in heifers than bulls. The proportions of MUFA and desaturation indices were higher in heifers, whereas polyunsaturated FA were higher in bulls in both muscle and subcutaneous adipose tissue. The results of this study demonstrated sex-dependent differences in the FA composition of muscle and subcutaneous adipose tissue from cattle slaughtered at different ages. The expression of the stearoyl-CoA desaturase gene was higher in the adipose tissue of heifers compared to bulls, and its variation partly contributed to sex- and age-differences in the FA composition of bovine adipose tissue.
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