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日粮添加高剂量铜对山羊生产性能、血脂、屠体的影响 被引量:7

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摘要 试验在山羊日粮中添加不同水平的铜,旨在研究高铜对山羊生产性能、脂质代谢、屠体成分等的影响。试验采用单因子设计,将18只5月龄,体重为(20.4±2.1)kg的波尔×内蒙古羯羊随机分为3种处理,每个处理设3个重复,每个重复2只;处理1日粮中不添加铜作对照组,处理2和处理3日粮中分别添加100、200mg/kg铜(CuSO4.5H2O),饲养至112日龄时,统计采食量、日增重和料肉比;从每个处理各取3只羊,采集血样后屠宰、采集肝脏和胸部肉样,分别测定血铜、肝铜、血清中总胆固醇(TC)、甘油三酯(TG)、非酯化脂肪酸(NEFA)含量、屠体成分等。结果表明:与对照组相比,添加100mg/kg铜的处理组,日增重、采食量显著增加(P<0.05),料肉比显著降低(P<0.05)。添加100、200mg/kg铜的2个处理组,血铜含量差异不显著(P>0.05),肝铜含量显著增加(P<0.05),血清胆固醇(TC)和甘油三酯(TG)含量差异均不显著(P>0.05),但非酯化脂肪酸(NEFA)含量比对照组显著降低(P<0.05),屠体水分、蛋白、灰分含量均显著升高(P<0.05),粗脂肪含量显著降低(P<0.05),股盆脂肪和体壁脂肪厚度显著降低(P<0.05),全净膛重差异不显著(P>0.05)。
出处 《畜牧与兽医》 北大核心 2008年第1期61-63,共3页 Animal Husbandry & Veterinary Medicine
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