食品科学2017，Vol.38Issue(19)：30-34,5.DOI:10.7506/spkx1002-6630-201719006
不同饲养方式对苏尼特羊背最长肌肌纤维类型组成的影响
Effect of Different Feeding Systems on Muscle Fiber Types of Longissimus dorsi from Sunit Sheep
摘要
Abstract
The aim of this study was to investigate the influence of different feeding systems (stall feeding and grazing) on muscle fiber types of longissimus doris from Sunit sheep by ATPase histochemical staining and real-time polymerase chain reaction.The results showed that the diameters and cross-sectional areas of type Ⅰ and ⅡB muscle fibers in longissimus doris from grazing sheep were significantly lower than those from stall-fed sheep (P ＜ 0.05).The number and area percentages of type Ⅰ and type Ⅱ A,and MyHC Ⅰ and MyHCⅡa gene expression in grazing sheep were significantly higher than those in stall-fed sheep (P ＜ 0.05),but the expression of type Ⅱ B and MyHCⅡb genes present the opposite trend.关键词
苏尼特羊/饲养方式/肌纤维类型/MyHC基因Key words
Sunit sheep/feeding systems/muscle fiber types/MyHC gene分类
轻工纺织引用本文复制引用
赵雅娟,尹丽卿,苏琳,刘树军,李云,王小斌,靳烨..不同饲养方式对苏尼特羊背最长肌肌纤维类型组成的影响[J].食品科学,2017,38(19):30-34,5.基金项目
国家自然科学基金面上项目(31360393) （31360393）
