本文關鍵詞： 蘇尼特羊 飼養(yǎng)方式 肌纖維類型 MyHC基因　出處：《食品科學》2017年19期 　論文類型：期刊論文

【摘要】：以12月齡不同飼養(yǎng)條件下(放牧和圈養(yǎng))蘇尼特羊背最長肌作為實驗材料,用ATP酶染色法和實時定量聚合酶鏈式反應技術研究不同飼養(yǎng)方式下肌纖維類型組成。結果表明:放牧蘇尼特羊背最長�、裥秃廷駼型肌纖維直徑和橫截面積均顯著小于圈養(yǎng)(P0.05);同時,放牧蘇尼特羊背最長�、裥秃廷駻型肌纖維數(shù)量比例和面積比例、MyHCⅠ和MyHCⅡa基因的mRNA表達量均顯著大于圈養(yǎng)(P0.05),ⅡB型肌纖維數(shù)量比例和MyHCⅡb型基因mRNA表達量則呈現(xiàn)相反趨勢。
[Abstract]:The longissimus dorsi muscle of Sunita sheep was used as experimental material under different feeding conditions of 12 months old (grazing and captivity). The types of muscle fibers under different feeding conditions were studied by ATP staining and real-time quantitative polymerase chain reaction. The results showed that the diameter and cross-sectional area of longissimus dorsi type 鈪，

本文編號：1523147