反刍动物营养 Ruminant nutrition

安静型和紧张型湖羊屠宰性能、复胃发育和组织形态结构的比较

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  • 1. 扬州大学动物科学与技术学院, 扬州 225009;
    2. 澳大利亚西澳大学动物生理学系, 佩斯 6009, 澳大利亚
茆建昱(1995-),男,江苏宿迁人,本科生,扬州大学动物营养与饲料科学系。E-mail:1769209182@qq.com

收稿日期: 2017-08-07

  网络出版日期: 2018-02-02

基金资助

2017年扬州大学大学生创新计划(x2017741);国家自然基金面上项目(31672446);国家重点研发计划(2017YFD0800205)

Comparison of Slaughter Performance and Development and Tissue Morphological Structure of Complex Stomach of Hu Sheep with Quiet and Excited Temperaments

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  • 1. College of Animal Science and Technology, Yangzhou 225009, China;
    2. Department of Animal Physiology, The University of Western Australia, Perth 6009, Australia

Received date: 2017-08-07

  Online published: 2018-02-02

摘要

本试验旨在比较安静型和紧张型湖羊屠宰性能、复胃发育和组织形态结构。通过性情比较方法筛选出安静和紧张型情湖羊各10只,各为1组,2组饲养条件一致。预试期7 d,正试期60 d。试验结束后,屠宰分离复胃,称重后制作组织切片。结果表明:不同性情湖羊的干物质采食量、宰前活重、胴体重及各器官指数未见显著差异(P>0.05),但是安静型湖羊的屠宰率显著高于紧张型湖羊(P<0.05)。湖羊复胃指数在组间差异不显著(P>0.05),但安静型湖羊瘤胃上皮的角质层厚度显著低于紧张型湖羊(P<0.05),而基底层厚度和瘤胃乳头宽度却显著高于紧张型湖羊(P<0.05)。综合得出,安静型湖羊的屠宰率高于紧张型湖羊,复胃发育虽然没有显著差异,但是安静型湖羊瘤胃上皮乳头较宽大,且角质层更薄,更利于营养物质的吸收。

本文引用格式

茆建昱, 李浩, 王梦芝, 丁洛阳, BLACHE Dominique . 安静型和紧张型湖羊屠宰性能、复胃发育和组织形态结构的比较[J]. 动物营养学报, 2018 , 30(2) : 606 -612 . DOI: 10.3969/j.issn.1006-267x.2018.02.025

Abstract

This study was to compare the slaughter performance and the development and tissue morphological structure of complex stomach of Hu sheep with quiet and excited temperaments. Quiet and excited Hu Sheep, 10 for each temperament, were selected through the temperament comparison method, each temperament was set as 1 group, and feeding condition of the two groups was the same. The pre-experiment lasted for 7 days, and the experiment lasted for 60 days. After the experiment, sheep was slaughtered to collect complex stomach, which was made for tissue slides after weighted. The results showed that no significant differences were found in dry matter intake, live weight before slaughter, carcass weight and organ indexes of Hu lambs with different temperaments (P>0.05), but dressing percentage of quiet Hu sheep was significantly higher than that of excited Hu sheep (P<0.05). There was no significant difference in complex stomach index (P>0.05), however, stratum corneum thickness of rumen epithelium was significantly lower while stratum basale and rumen papillae thicknesses were significantly higher in quiet Hu sheep compared with excited Hu sheep (P<0.05). In conclusion, quiet Hu sheep is better than excited Hu sheep in dressing percentage, although no significant difference is found in complex stomach development, quiet Hu sheep has wider rumen papillae and thinner stratum corneum, which is more beneficial for absorption of nutrients.

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