饲养方式对苏尼特羊背最长肌miR-30a、miR-223、miR-128和miR-486表达及肉品质的影响
发布时间：2019-06-11 17:20
【摘要】：选择不同饲养条件下12月龄苏尼特羊的背最长肌为实验材料,通过测定4种miRNAs的表达量与肉品质,研究不同饲养方式对miRNAs表达量及肉品质的影响。结果表明,放牧苏尼特羊背最长肌嫩度高于圈养,而圈养红度值显著高于放牧(P0.05)。圈养苏尼特羊背最长肌pH_2著高于放牧(P0.05)。2种饲养方式下,4个miRNA均有表达,且放牧苏尼特羊背最长肌miRNAs基因表达量高于圈养。苏尼特羊miR-30a与红度值呈显著负相关(P0.05)。不同饲养方式对miR-128、miR-486、miR-30a、miR-223的表达有影响,并进一步影响肉的品质。
[Abstract]:The longissimus dorsi muscle of 12-month-old Sunita sheep was selected as experimental material. The effects of different feeding methods on the expression of miRNAs and meat quality were studied by measuring the expression of four kinds of miRNAs and meat quality. The results showed that the longest muscle tenderness of the back of grazing Sunita sheep was higher than that of captive culture, and the redness of captive culture was significantly higher than that of grazing (P 0.05). The pH_2 of the longissimus dorsi muscle of Sunita sheep in captivity was higher than that of grazing (P 0.05). Under the two feeding methods, the expression of miRNAs gene in the longissimus dorsi muscle of grazing Sunita sheep was higher than that in captivity. There was a significant negative correlation between miR-30a and redness in Sunita sheep (P 0.05). Different feeding methods had an effect on the expression of miR-128,miR-486,miR-30a,miR-223 and further affected the quality of meat.
【作者单位】： 内蒙古农业大学食品科学与工程学院;
【基金】：高等学校博士学科点专项科研基金资助项目(20121515110001) 国家自然科学基金资助项目(31360393,31260378)
【分类号】：S826
[Abstract]:The longissimus dorsi muscle of 12-month-old Sunita sheep was selected as experimental material. The effects of different feeding methods on the expression of miRNAs and meat quality were studied by measuring the expression of four kinds of miRNAs and meat quality. The results showed that the longest muscle tenderness of the back of grazing Sunita sheep was higher than that of captive culture, and the redness of captive culture was significantly higher than that of grazing (P 0.05). The pH_2 of the longissimus dorsi muscle of Sunita sheep in captivity was higher than that of grazing (P 0.05). Under the two feeding methods, the expression of miRNAs gene in the longissimus dorsi muscle of grazing Sunita sheep was higher than that in captivity. There was a significant negative correlation between miR-30a and redness in Sunita sheep (P 0.05). Different feeding methods had an effect on the expression of miR-128,miR-486,miR-30a,miR-223 and further affected the quality of meat.
【作者单位】： 内蒙古农业大学食品科学与工程学院;
【基金】：高等学校博士学科点专项科研基金资助项目(20121515110001) 国家自然科学基金资助项目(31360393,31260378)
【分类号】：S826
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