The effect of weight stasis on the dissected carcass composition of crossbred sheep

Author:

Murray DM,Slezacek O

Abstract

A study was made of the dissected carcass composition of crossbred wethers (progeny of Dorset Horn rams and Border Leicester x Merino ewes) maintained at 30 kg liveweight for either 0, 25, 50 or 75 days. Animals were individually penned and fed a pelleted ration of 80% lucerne chaff and 20% cereal grain (89.3% dry matter, I4.8To crude protein and 18.27 kJ/g gross energy). Cold carcass weight showed a significant increase (P < 0.05) in animals during weight stasis, although dry matter intake of animals during weight stasis decreased. All dissected carcass fat depots increased during weight srasis, although only subcutaneous fat showed a significant increase (P < 0.05) in weight. Neither the weight of total dissected side muscle nor total dissected side bone was affected by weight stasis. Only the weight of Standard muscle group 1 showed a significant response to weight stasis, and it increased (P < 0-05). Weight stasis had no effect on the weights of separate bones. Results for fat, muscle and bone distribution are reported. Subcutaneous fat formed a significantly increasing proportion of total side fat weight (P < 0.05) as duration of weight stasis increased, while intermuscular fat showed a trend to form a decreasing proportion. Weight stasis had no effect on the proportion of total side muscle formed by each of the Standard muscle groups, except group 4 which decreased (P < 0.05). Bone distribution was not influenced by weight stasis.

Publisher

CSIRO Publishing

Subject

General Agricultural and Biological Sciences

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3