添加不同水平碾米废料对小尾寒羊公羔育肥效果的影响

Effect of Adding Different Levels of Rice MillingResidue on Fat Finishing of Small Tail Han Sheep Rams

随机选择16只小尾寒羊公羔进行12周育肥试验,实验组配制梯度水平的碾米废料代替小麦仁,添加比例分别为:15%、30%和45%,对照组设为无碾米废料添加。结果表明:添加30%碾米废料试验组与其他处理组相比效果最优(P<0.05);碾米废料添加至45%时对公羔生长有影响(P>0.05);碾米废料试验组饲粮配比使"饲料成本/千克活体增重"显著降低。

In order to achieve the effective use of agricultural sideline products and reduce the cost of feed. We determine the optimal addition ratio of rice milling residue in the fattening diet of lambs. Sixteen Small Tail Han Sheep rams were selected for the 12-week fattening test to identify the optimal ratio of rice milling residue. The diet of experimental group was prepared with different gradient rice milling residue(15%, 30% and 45%) to replace the original feed, the ratios were: 15%, 30% and 45%, respectively. The diet of control group was set as a without rice milling residue. [The results showed that the addition of 30% rice milling residue feeding group was the best(P<0.05). There was no adverse effect on the growth of rams when rice milling residue was up to 45%(P>0.05). The experimental diet ratio significantly reduced the ‘feed cost/kg weight gain’. For optimal economic benefit, the rice residue in the Small Tail Han Sheeprams diet should be added at 30%. During the fattening period, the addition of rice milling residue to the diet can reduce the cost of feeding and maintain the fattening effect, but it still needs to be verified in different regions and different varieties.