乌珠穆沁羊生长过程中肌内结缔组织结构及特性变化  

Changes in Structure and Characteristics of Intramuscular Connective Tissues during the Development of Wuzhumuqin Sheep

作　　者：苏雅拉[1] 侯小伟[1] 格日勒图[1] 

机构地区：[1]内蒙古农业大学食品科学与工程学院,内蒙古呼和浩特010018

出　　处：《食品科学》2012年第1期81-86,共6页Food Science

基　　金：国家自然科学基金项目(20766003);内蒙古自然科学基金项目(2010MS1304)

摘　　要：以优良品种乌珠穆沁羊(1～18月龄)为研究对象,利用组织学法观察其生长过程中肌肉结缔组织的结构变化,并对其生长过程中肌内结缔组织中吡啶诺林含量和蛋白多糖中糖醛酸含量进行测定分析。结果表明:肌内膜的厚度随着月龄的增加而增加,其中6月龄与9月龄、12月龄与18月龄之间差异不显著(P>0.05);而肌束膜厚度1～6月龄显著增加,之后显著下降(P<0.05)。肌内膜的蜂窝孔径逐渐增大,并且胶原纤维网状结构变的越紧密,肌束膜中胶原纤维的波浪状结构变的越有规则。结缔组织内吡啶诺林含量和糖醛酸含量随着月龄的增加而逐渐增加,各月龄之间差异均显著(P<0.05)。Wuzhumuqin sheep aged 1-18 months were tested for the structural change of intramuscular connective tissues by a histological method.Meanwhile,the contents of pyridinoline and proteglycans in intramuscular connective tissues were determined during the development of Wuzhumuqin sheep.The thickness of endomysium increased with increased age and no significant difference was observed between 6 and 9 months and between 12 and 18 months（P 0.05）.The thickness of perimysium showed an obvious increase during the first 6 months and then a significant decrease（P 0.05）.The diameter of endomysial honeycomb structure gradually increased,and collagen fibrils in endomysium became more tightly bounded to each other.Moreover,the wavy pattern of collagen fibres in perimysium became more regular during the growth of sheep.Furthermore,the contents of pyridinoline and uronic acid in connective tissue revealed a significant increase during the growth process of sheep（P 0.05）.

关 键 词：肌内膜 肌束膜 结构变化 吡啶诺林 糖醛酸 

分 类 号：TS251.53[轻工技术与工程—农产品加工及贮藏工程]