Effects of Bacteria and Enzyme Treatments of Wheat Straw on Growth Performance and Slaughter Performance of Mutton Sheep |
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| Authors: | FENG Wen-xiao TAO Lian WANG Yu-rong CHEN Guo-shun DIAO Qi-yu |
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| Institution: | 1. Key Laboratory of Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, China;
2. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China |
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| Abstract: | In order to find the way to effectively utilize wheat straw,the effect of bacteria and enzyme treatments of wheat straw on growth performance and slaughter performance were studied.80 Dorper×Small-tailed Han crossbred male lambs with initial body weight of (24.00±2.42) kg were randomly divided into four groups with five replicates per group and four lambs per replicete, which were control group (dry wheat straw),treatment group Ⅰ (wheat straw with bacteria and enzyme compound preparations),treatment group Ⅱ (dry wheat straw with enzyme preparations),and Chinese wildrye group (Chinese wildrye).The experiment lasted for 60 d with 8 d of adaptation period.The results showed that the net gain and average daily gain of treatment groups Ⅰ,Ⅱ and Chinese wildrye group were significantly higher than those in control group (P< 0.05),and F/G were significantly lower than control group (P< 0.05),but those in the three groups were not significantly difference (P> 0.05);There were no significant differences of slaughter performance among different groups (P> 0.05).Compared with control group,the liver weight in the treatment groups Ⅰ,Ⅱ and Chinese wildrye group were increased 10.74% (P> 0.05),13.79% (P< 0.05),8.52% (P> 0.05), and the percentages of liver weight to live weight before slaughter were significantly higher than that in control group (P< 0.05).The other indexes of issues and internal organ (rumen,reticulum,omasum,abomasum,small intestine,large intestine,lung,kidney,head,feet and skin+wool) showed no significant difference (P> 0.05).The growth performance of sheep were significantly increased by wheat straw with bacteria and enzyme treating,while the slaughter performance and development of tissues and organs were not significantly affected. The nutrient value of wheat straw with biological treatment was close to Chinese wildrye. |
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| Keywords: | mutton sheep wheat straw enzyme preparations bacterial and enzyme preparations growth performance |
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