全价颗粒饲料与传统精、粗料混合饲喂技术对肉羊育肥效果的对比试验

为了加快内蒙古五原县肉羊产业发展,增加养殖户经济效益,探讨不同饲料对肉羊育肥增重效果的影响,为科学养羊提供依据,选取3月龄体格、体重相近的小尾寒羊公羔100只,随机分为试验组和对照组,每组50只。试验组羔羊饲喂全价颗粒饲料,对照组采用传统的精、粗料混合饲喂技术,试验期75 d。试验结束时,比较2组羔羊的增重指标和饲料利用率指标,并进行养殖效益分析。结果表明,试验组肉羊的日增重、总增重、胴体重和屠宰率均显著高于对照组（P〈0.05）;试验组羔羊的饲料实际采食量较对照组显著提高（P〈0.05）,试验组羔羊的饲料损耗量较对照组显著降低（P〈0.05）,饲料利用率提高了4.36%,试验组羔羊的料肉比较对照组显著降低（P〈0.05）;试验组单只羔羊育肥的纯收入显著高于对照组（P〈0.05）。在肉羊育肥过程中,饲喂全价颗粒饲料能显著提高羊只的生长速度和产肉性能,降低人工成本,减少饲料浪费,提高经济效益。

Comparison of Effects of Feeding Complete Pellet Feed and Traditional Feeding Method with Mixture of Concentrate and Roughage on Growth of Fattening Lambs

In order to accelerate the development of mutton sheep industry, improve the economic benefit of raising households and provide scientific basis for sheep feeding, the effect of different feeds on growth of fattening lambs was evaluated in this study.A total of 100 three-month-old male lambs of small-tail Han Sheep with similar weight were chosen and randomly divided into experimental group and control group with 50 lambs for each group. The lambs in experimental group fed complete pellet feed and the lambs in control group were fed by traditional feeding method with mixture of concentrate and roughage. The experimental period lasted for 75 days. At the end of the experiment, the weight gain related indicators, feed efficiency and feeding benefit of experimental group and control group were statistically compared. The results revealed that the daily weight gain, total weight gain, carcass weight and dressing percentage of lambs in experimental group were significantly higher than those of lambs in control group（P 0.05）; The actual feed intake of lambs in experimental group was significantly higher than that of lambs in control group（P〈0.05）, whereas the feed wastage of lambs in experimental group was significantly decreased（P〈0.05）; The feed efficiency of experimental group was increased by 4.36%; The feed conversion ratio of experimental group was significantly lower than that of control group（P〈0.05）; The net income for single lamb fattening of experimental group was significantly higher than that of control group（P〈0.05）. It was demonstrated that feeding complete pellet feed was able to improve the economic benefit of mutton sheep fattening for raising households by improving the growth and production performance of fattening lambs and reducing the labor cost and feed wastage.