【摘要】：選擇不同飼養(yǎng)條件下12月齡蘇尼特羊的背最長肌為實(shí)驗(yàn)材料,通過測定4種miRNAs的表達(dá)量與肉品質(zhì),研究不同飼養(yǎng)方式對miRNAs表達(dá)量及肉品質(zhì)的影響。結(jié)果表明,放牧蘇尼特羊背最長肌嫩度高于圈養(yǎng),而圈養(yǎng)紅度值顯著高于放牧(P0.05)。圈養(yǎng)蘇尼特羊背最長肌pH_2著高于放牧(P0.05)。2種飼養(yǎng)方式下,4個miRNA均有表達(dá),且放牧蘇尼特羊背最長肌miRNAs基因表達(dá)量高于圈養(yǎng)。蘇尼特羊miR-30a與紅度值呈顯著負(fù)相關(guān)(P0.05)。不同飼養(yǎng)方式對miR-128、miR-486、miR-30a、miR-223的表達(dá)有影響,并進(jìn)一步影響肉的品質(zhì)。
[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.
【作者單位】： 內(nèi)蒙古農(nóng)業(yè)大學(xué)食品科學(xué)與工程學(xué)院;
【基金】：高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金資助項(xiàng)目(20121515110001) 國家自然科學(xué)基金資助項(xiàng)目(31360393,31260378)
【分類號】：S826

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張賢群,覃矜,SKondracki;品種、性別和飼喂水平對背最長肌脂肪酸成分的影響[J];國外畜牧學(xué)(豬與禽);2001年01期

2 馬文強(qiáng);馮杰;許梓榮;汪以真;劉建新;;豬背最長肌肌紅蛋白基因片段的克隆及甘氨酸鐵對其表達(dá)的影響[J];浙江大學(xué)學(xué)報(農(nóng)業(yè)與生命科學(xué)版);2009年05期

3 黃金秀;劉作華;楊飛云;葉婷;江山;肖融;;品種、體重和營養(yǎng)對豬背最長肌肌纖維組織學(xué)特性的影響[J];中國畜牧雜志;2010年13期

4 虞德兵;熊鍇;張宇霞;葦小菲;文平;王林云;黃瑞華;劉紅林;;豬IGF2 Intron3 G3072A突變及其在背最長肌中差異表達(dá)[J];南京農(nóng)業(yè)大學(xué)學(xué)報;2010年06期

5 宋凡;閆冬梅;周淑蘭;;豬背最長肌、皮下脂肪及飼料脂肪酸組成的快速測定[J];飼料研究;2011年10期

6 孟質(zhì)文;張瑞紅;安s，

本文編號：2497351