日粮中添加青贮饲料对东宝黑头羊增重、屠宰性能及经济效益的影响  

Effect of adding different silages to the diet on the weight gain performance, slaughter performance and economic benefit of Dongbao black head goats

作　　者：索效军[1,2] 杨前平 陶虎[1] 熊琪[1] 李晓锋[1] 张凤[1] 张年[1] 陈明新[1] SUO Xiaojun;YANG Qianping;TAO Hu;XIONG Qi;LI Xiaofeng;ZHANG Feng;ZHANG Nian;CHEN Mingxin(Institute of Animal Husbandry and Veterinary Medicine,Hubei Academy of Agricultural Science,Wuhan 430064,China;Key Laboratory of Animal Embryonic Engineering and Molecular Breeding of Hubei Province,Wuhan 430064,China)

机构地区：[1]湖北省农业科学院畜牧兽医研究所,湖北武汉430064 [2]动物胚胎工程及分子育种湖北省重点实验室,湖北武汉430064

出　　处：《畜牧与兽医》2022年第2期41-45,共5页Animal Husbandry & Veterinary Medicine

基　　金：湖北省农业科技创新中心项目(2020-620-004-002);湖北省农业科技创新行动项目(2018SKJCX05)。

摘　　要：为研究全株玉米青贮、全株玉米和饲料桑混合青贮对东宝黑头羊增重、屠宰性能以及育肥效益的影响,选取45只10月龄,体重(30.3±1.3)kg的东宝黑头羊,按照饲喂日粮的种类随机分为3组:对照组(玉米秸秆青贮+精料),试验Ⅰ组(全株玉米青贮+精料),试验Ⅱ组(全株玉米和饲料桑混合青贮+精料),预试验7 d,正式试验期90 d。结果显示:试验Ⅰ、Ⅱ组末重、平均日干物质采食量显著高于对照组(P<0.05);试验Ⅰ、Ⅱ组平均日增重极显著高于对照组(P<0.01);试验Ⅰ、Ⅱ组料重比显著低于对照组(P<0.05),而试验Ⅱ组显著低于Ⅰ组(P<0.05);试验Ⅰ、Ⅱ组胴体重、屠宰率显著高于对照组(P<0.05),而试验Ⅰ、Ⅱ组间无显著差异(P>0.05);试验Ⅱ组眼肌面积显著高于Ⅰ组和对照组(P<0.05),而Ⅰ组和对照组无显著差异(P>0.05);除试验Ⅰ、Ⅱ组瘤胃重量显著高于对照组(P<0.05),各组间器官重量差异均不显著(P>0.05);试验Ⅰ、Ⅱ组和对照组均盈利,按活羊出售分析,试验Ⅱ组净收益最高,按屠宰出售分析,试验Ⅰ组净收益最高。提示:日粮中添加全株玉米青贮、全株玉米和饲料桑青贮,可提高肉羊的增重性能和屠宰性能。The experiment was aimed to study the effects of diets supplemented with whole-plant corn silage and whole-plant corn plus mulberry silage on the weight gain performance, slaughter performance and economic benefits of Dongbao black head goats. Forty-five 10-month-old mutton goats with an average body weight of(30.3±1.3) kg were randomly divided into 3 groups according to the types of diet, which were corn straw silage plus concentrate(the Control Group), whole-plant corn silage plus concentrate(Group One), and whole-plant corn and mulberry silage plus concentrate(Group Two), respectively. The pre-experimental period lasted for 7 days, and the formal experimental period lasted for 90 days. The results showed as follows: (1) The final weight and average daily feed intake(ADFI) of Groups One and Two were significantly higher than those of the Control Group(P<0.05), the average daily gain(ADG) of Groups One and Two was very significantly higher than that of the Control Group(P<0.01). The ratio of feed to gain of Groups One and Two was significantly lower than that of the Control Group( P<0. 05),and that of Group Two was significantly lower than that of Group One( P<0. 05). (2) The carcass weight and the slaughter rate of Groups One and Two was significantly higher than that of the Control Group( P<0. 05),but there was no significant difference between Group One and Group Two( P>0. 05). The eye muscle area of Group Two was significantly higher than that of the other 2 groups( P<0. 05),but there was no significant difference between Group One and the Control Group( P> 0. 05). (3) Except that the rumen weight of Groups One and Two was significantly higher than that of the Control Group( P < 0. 05),there was no significant difference in organ weight between each group( P > 0. 05). (4) The three groups were all profitable. According to the analysis of live goats sale,the net income of Group Two was the highest;when analyzed in terms of slaughter and sale,the net income of Group One was the highest. It was found that supp

关 键 词：玉米秸秆 全株玉米青贮 饲料桑 增重性能 屠宰性能 经济效益 

分 类 号：S826[农业科学—畜牧学]