离子载体对肉牛能量代谢的影响  

Effects of Ionophores on Energy Metabolism of Bulls

作　　者：张晓明[1] 叶尔森[1] 莫放[1] 李胜利[1] 

机构地区：[1]中国农业大学动物科技学院,动物营养国家重点实验室,北京100094

出　　处：《中国畜牧杂志》2007年第19期39-42,共4页Chinese Journal of Animal Science

摘　　要：为了比较莫能霉素、盐霉素和拉沙里菌素3种离子载体对肉牛能量代谢的不同影响,以4头30～35月龄、体重380～450kg的西门塔尔×中国黄牛杂交一代公牛为试验动物,采用4×4拉丁方设计,应用呼吸测热室进行能量平衡试验。结果表明:莫能霉素、盐霉素和拉沙里菌素对总能消化率没有影响(P>0.05);分别使消化能转化为代谢能的效率提高2.07%、1.85%和2.07%(P<0.05);使甲烷能/进食总能比例减小15.1%、17.6%和19.3%(P<0.05);使代谢能产热率降低1.76%、2.92%和3.87%(P>0.05),使日粮总能沉积率提高3.30%、5.62%和8.07%(P>0.05)。In order to make a comparison of the effects of different ionopheres on energy metabolism of beef cattle, an energy balance experiment with four hybrid bulls in a 4×4 Latin square design was conducted using a respiratory chamber system. The results indicated that monensin, salinomycin and lasalocid had no effect on GE digestibility （P〉 0.05）; increased ME/DE ratio by 2.07%, 1.85% and 2.07% （P 〈 0.05）; reduced CH4E/GEI ratio by 15.1%, 17.6% and 19.3% （P 〈 0.05）; decreased HP/ME ratio by 1.76%, 2.92% and 3.87% （P 〉 0.05）, improved the energy efficiency from GEl to RE by 3.30%, 5.62% and 8.07%（P 〉 0.05 ）, respectively.

关 键 词：离子载体 甲烷 能量代谢 肉牛 

分 类 号：S823.1[农业科学—畜牧学]