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草业学报  2015 

杂交狼尾草青贮饲喂肉猪效果研究

DOI: 10.11686/cyxb20150516, PP. 134-140

Keywords: 杂交狼尾草,肉猪,酶制剂,青贮

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Abstract:

本试验旨在研究利用酶制剂青贮杂交狼尾草,对牧草品质和肉猪饲喂效果的影响。选用150头100日龄体重50kg杜长大三元肉猪。实验分5个处理,每个处理3次重复,每个重复10头。对照组(CK)饲喂基础日粮;处理Ⅰ饲喂基础日粮,同时饲喂添加麦麸的杂交狼尾草青贮料;处理Ⅱ饲喂基础日粮,同时饲喂添加麦麸和纤维素酶青贮的杂交狼尾草青贮料;处理Ⅲ饲喂基础日粮,同时饲喂添加麦麸和纤维素菌液青贮的杂交狼尾草青贮料;处理Ⅳ饲喂基础日粮,同时饲喂添加麦麸和乳酸菌青贮的杂交狼尾草青贮料。结果表明,处理Ⅰ、Ⅱ、Ⅲ、Ⅳ与CK相比平均日增重差异不显著(P>0.05),但平均日增重绝对值分别比CK提高了2.3%,8.6%,4.4%和2.2%,精料肉比分别降低了9.7%,14.9%,11.4%和9.5%,经济效益分别提高了11.34%,36.03%,21.60%和14.03%。4组饲喂杂交狼尾草青贮料的肉猪与CK相比会适当降低肉猪屠宰率,显著提高肉猪的背膘厚,肉猪的板油重、胃重呈增加的趋势,大肠重量差异不显著,小肠重量和长度则变短变轻,且增加肉质颜色等品质。说明利用纤维素降解菌可以提高牧草青贮品质,提高肉猪饲喂效果和经济效益。

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