苜蓿干草与裹包青贮甜高粱混合饲喂肉羊育肥效果试验研究  

Experimental Study on Fattening Effects of Alfalfa Hay and Mixed Silage Sweet Sorghum

作　　者：马先锋 周泉佚 MA Xian-feng;ZHOU Quan-yi(Animal Husbandry and Veterinary Bureau of Dingxi City,Gansu Dingxi /43000,China)

机构地区：[1]定西市畜牧兽医局,甘肃定西743000

出　　处：《畜牧兽医杂志》2018年第5期60-62,65,共4页Journal of Animal Science and Veterinary Medicine

摘　　要：研究不同比例的苜蓿干草和裹包青贮甜高粱混合饲草对肉羊育肥效果的影响,筛选适宜的饲草搭配比例,以降低饲草成本,提高养殖效益,缓解饲草供需矛盾。设置苜蓿干草和裹包青贮甜高粱(折算为干物质)的质量比分别为1∶0、7∶3、3∶2、1∶1、2∶3、3∶7、0∶1的7组混合饲草,选择体况中等、发育良好、健康无病、体重相近的3~4月龄70只小尾寒羊,按照试验要求随机分为7组进行单圈饲喂,每组每天饲喂一种比例的混合饲草30kg、精料8kg,正试期60d,每天测定采食量,每10d测定体质量增加情况。苜蓿干草和裹包青贮甜高粱混合饲喂肉羊,可产生较好的育肥效果,但综合考虑采食量、体质量增加和经济效益分析结果,认为苜蓿干草和裹包青贮甜高粱(折算为干物质)质量比为1∶1是各饲草组合中的最佳组合,只均日增重0.192kg,经济效益132.2元,较饲喂苜蓿干草0.179kg、39.55元分别增加7.26%、92.65元,较饲喂裹包青贮甜高粱0.132kg、74.2元分别增加45.45%、58元。苜蓿干草和裹包青贮甜高粱(折算为干物质)按适宜质量比混合饲喂肉羊,可显著提高肉羊日增质量和经济效益,2种饲草的最佳混合质量比为1∶1。The effects of different proportions of alfalfa hay and wrapped silage sweet sorghum mixed forage on the fattening effect of mutton were studied.And the appropriate proportion of forage was selected to reduce the cost of forage and improve breeding efficiency and alleviate the contradiction between forage supply and demand.The 7 groups of alfalfa hay and wrapped sweet sorghum（converted to dry matter）were mixed with 7 groups of 1∶0,7∶3,3∶2,1∶1,2∶3,forage grass,and the medium body condition,well-developed,healthy and disease-free,similar weight of 70 months 3 to 4 months old Small Tail Han Sheep were selected,according to experimental requirements were randomly divided into 7 groups with single feeding,each group fed a proportion of mixed forage 30 kg,concentrate 8 kg,the trial period of 60 d,the daily feed intake was measured every 10 dto determine the increase in body weight.Feeding sheep with alfalfa hay and mixed wrapped silage sweet sorghum,can produce better fattening effect.Considering the feed intake,body weight and economic benefits analysis,alfalfa hay and wrapped silage sweet sorghum（converted to dry（1∶1）was the best combination among all the forage combinations,with average daily gain of 0.192 kg and economic benefit of 132.2 yuan,which increased 7.26% and 92.65 yuan respectively compared with 0.179 kg and 39.55 yuan fed alfalfa hay.Compared with the fed silage sweet sorghum 0.132 kg,74.2 yuan increased by 45.45%,58 yuan.Alfalfa hay and wrapped silage sweet sorghum（converted to dry matter）were fed on the appropriate quality ratio of mutton sheep,can significantly increase daily gain and economic benefits of the 2 kinds of forage grass,the best mixing quality ratio of 1∶1.

关 键 词：苜蓿干草 裹包青贮甜高粱 混合饲喂 小尾寒羊 育肥效果 经济效益 

分 类 号：S816.31[农业科学—饲料科学]