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首页> 外文期刊>Meat Science >Meta-analysis of the comparison of the metabolic and contractile characteristics of two bovine muscles: Longissimus thoracis and semitendinosus
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Meta-analysis of the comparison of the metabolic and contractile characteristics of two bovine muscles: Longissimus thoracis and semitendinosus

机译:两种牛肌肉的新陈代谢和收缩特性比较的荟萃分析:胸大肌和半腱肌

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摘要

This study used the BIF-Beef data warehouse to determine whether semitendinosus (ST) was a muscle with a faster contraction speed and more glycolytic than longissimus thoracis (LT), regardless of the sex and breed of animals. With more than 500 animals from 7 breeds, we confirmed that LT was more oxidative than ST in males and females, but not in steers, and in all the breeds studied except Montbeliard. The LT had more slow oxidative (SO) and fewer fast oxido-glycolytic (FOG) and fast-glycolytic (FG) muscle fibres than the ST muscle, regardless of sex, in all breeds except Montbeliard and Holstein. SO proportion and the oxidative activity were negatively correlated to FG proportion and to the glycolytic activity. Similarly, FOG proportion was positively correlated to the glycolytic activity and negatively to FG proportion. However, these relationships are not consistent across sexes and breeds. In conclusion, differences in muscle types may be affected by sex or breed but to a moderate extent only.
机译:这项研究使用BIF-Beef数据仓库来确定半腱肌(S​​T)是否比胸最长肌(LT)具有更快的收缩速度和更强的糖酵解性,而与动物的性别和品种无关。在来自7个品种的500多只动物中,我们证实了LT在雄性和雌性中的氧化程度都比ST高,但在公牛中则没有,而在所有研究的品种中,除Montbeliard以外,LT的氧化作用均不如ST。不论性别,除了蒙贝利亚德和荷斯坦以外,所有品种的LT均具有比ST肌肉更长的慢速氧化(SO)和更少的快速氧化糖酵解(FOG)和快速糖酵解(FG)肌肉纤维。 SO比例和氧化活性与FG比例和糖酵解活性呈负相关。同样,FOG比例与糖酵解活性呈正相关,与FG比例呈负相关。但是,这些关系在性别和品种之间并不一致。总之,肌肉类型的差异可能受性别或品种的影响,但仅在中等程度上。

著录项

  • 来源
    《Meat Science》 |2012年第4期|p.423-429|共7页
  • 作者单位

    INRA UR1213, Unite de recherche sur les Herbivores, Theix, 63122 Saint Genes Champanelle, France ,UNCEIA, 75595 Paris Cedex 12, France;

    INRA UR1213, Unite de recherche sur les Herbivores, Theix, 63122 Saint Genes Champanelle, France;

    INRA UR1213, Unite de recherche sur les Herbivores, Theix, 63122 Saint Genes Champanelle, France;

    INRA UR1213, Unite de recherche sur les Herbivores, Theix, 63122 Saint Genes Champanelle, France;

    INRA UR1213, Unite de recherche sur les Herbivores, Theix, 63122 Saint Genes Champanelle, France;

    INRA UR1213, Unite de recherche sur les Herbivores, Theix, 63122 Saint Genes Champanelle, France;

    UNCEIA, 75595 Paris Cedex 12, France;

    INRA UR1213, Unite de recherche sur les Herbivores, Theix, 63122 Saint Genes Champanelle, France;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bovine; muscle biochemistry; meta-analysis; muscle fibres; breed; steers;

    机译:牛;肌肉生化;元分析;肌肉纤维;品种;转向;

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