| 限饲对绒山羊生长性能和屠宰性能的影响 |
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| 引用本文： | 李琴,张微,贾志海,张世伟,宋先忱,霍小东,李瑞丽.限饲对绒山羊生长性能和屠宰性能的影响[J].中国畜牧杂志,2011,47(21). |
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| 作者姓名： | 李琴 张微 贾志海 张世伟 宋先忱 霍小东 李瑞丽 |
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| 作者单位： | 1. 中国农业大学动物科学技术学院,北京,100193
2. 辽宁省畜牧科学研究院,辽宁辽阳,111000 |
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| 基金项目： | 公益性行业(农业)科研专项(2009030006-01); 辽宁绒山羊新品系规范化养殖技术集成与产业化开发体系建设示范(2009BADA5B04) |
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| 摘 要： | 本研究通过饲养试验与屠宰试验来探讨限饲对绒山羊生产性能和屠宰性能的影响。将20只育成羊随机分成4组,即分别为自由采食组(AL)及自由采食组采食量的90%(IR90%)、80%(IR80%)和70%(IR70%)。正式试验期为90 d。结果表明:AL的日增重比IR90%组I、R80%组显著高出91.21%和194.92%(P<0.05),但IR90%和IR80%之间无显著差异(P>0.05),另外IR70%组的日增重为-6.3 g/d。宰前活体重、空体重、胴体重和屠宰率随着营养水平的降低有所减少(P<0.05)。随着营养水平的降低,肾周脂肪、系网膜脂肪占空体重的比例显著减少(P<0.05)。随着限饲强度的增加,日增重逐渐下降,体内脂肪沉积也随之减少。综合分析显示,绒山羊的限饲的阈值为IR80%。
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| 关 键 词： | 限饲 生长性能 屠宰性能 育成羊 绒山羊 |
Effect of Feed Restriction on the Growth and Slaughter Performance of Liaoning Cashmere Goats |
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| LI Qin
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ZHANG Wei
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JIA Zhi-hai
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ZHANG Shi-wei
,
SONG Xian-chen
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HUO Xiao-dong
,
LI Rui-li.Effect of Feed Restriction on the Growth and Slaughter Performance of Liaoning Cashmere Goats[J].Chinese Journal of Animal Science,2011,47(21). |
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| Authors: | LI Qin ZHANG Wei JIA Zhi-hai ZHANG Shi-wei SONG Xian-chen HUO Xiao-dong LI Rui-li |
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| Institution: | LI Qin1,ZHANG Wei1,JIA Zhi-hai1,ZHANG Shi-wei2,SONG Xian-chen2,HUO Xiao-dong1,LI Rui-li1(1.College of Animal Science and Technology,China Agricultural University,Beijing 100193,China,2.The Institute of Animal Husbandry of Liaoning Province,Liaoning Liaoyang 111000,China) |
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| Abstract: | The study was conducted to investigate the effect of feed restriction on the growth and slaughter performance of Liaoning cashmere goats.Twenty growing ewes were randomly allocated to four nutrient levels of dry matter intake: ad libitum(AL) or restricted to either IR90%,IR80% and IR70% of the ad libitum intake.The trial lasted 90 days.The results showed that the ADG of AL was significantly higher by 91.21% and 194.92%(P<0.05) than those of IR90% and IR80%,respectively.The ADG of IR 70% was-6.3 g/d.The live... |
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| Keywords: | feed restriction growth performance slaughter performance growing ewes cashmere goats |
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