食品科学2017，Vol.38Issue(15)：63-68,6.DOI:10.7506/spkx1002-6630-201715011
不同饲养条件对苏尼特羊背最长肌中MyomiRs表达及屠宰性能的影响
Effect of Different Feeding Conditions on MyomiRs Expression in Longissimus doris Muscle Slaughter Performance of Sunit Sheep
摘要
Abstract
The study was undertaken to investigate the effect of different feeding conditions on MyomiRs expression in longissimus dorsi and slaughter performance of 12-month-old Sunit sheep.The results showed that growth traits (length,height and chest girth),live weight and carcass weight of sheep in the grazing group were significantly higher than those of sheep in the stall-fed group (P ＜ 0.05),and dressing percentage and lean meat yield of pen-fed sheep were higher than those of grazing sheep.The level of miRNA expression in longissimus dorsi of grazing sheep was higher than in stall-fed sheep.The miR-1 expression in grazing sheep had a significant positive correlation with height,carcass weight and lean meat yield (P ＜ 0.05),and miR-133 expression was also significantly positively correlated with lean meat yield (P ＜ 0.05).But a significant negative correlation between miR-128 expression and lean meat yield was noted for the stall-fed group (P ＜ 0.05).Accordingly,different feeding conditions have an impact on miRNAs expression,thereby further affecting slaughter performance.关键词
饲养条件/苏尼特羊/MyomiRs/表达量/屠宰性能Key words
feeding conditions/Sunit sheep/MyomiRs/expression/slaughter performance分类
轻工纺织引用本文复制引用
张利霞,郭月英,要铎,苏日娜,靳烨..不同饲养条件对苏尼特羊背最长肌中MyomiRs表达及屠宰性能的影响[J].食品科学,2017,38(15):63-68,6.基金项目
国家自然科学基金面上项目(31360393) （31360393）
