不同精料喂量对育肥肉牛增重的影响  

Effect of Different Concentrate Supplementation Levels on Bodyweight Gain of Beef Cattle

作　　者：徐娥[1] 夏先林[1] 保禹[1] 杨巍[1] 徐端[1] 伍贵相[1] 

机构地区：[1]贵州大学动物科学学院,贵州贵阳550025

出　　处：《山地农业生物学报》2010年第4期317-319,329,共4页Journal of Mountain Agriculture and Biology

基　　金：贵州省"十一五"科技攻关重大项目基金[黔科合NZ字(2005)3002]

摘　　要：选择24月龄左右健康西×本杂肉牛20头,随机分为两组。试验组1按牛体重的1%饲喂精料,试验组2按牛体重的1.5%饲喂精料,酒糟、草料任意采食,研究不同的精料添加水平对肉牛育肥效果的影响。结果表明:试验组1平均日增体重1.13 kg,每天每头牛可获纯利润2.9元;试验组2平均日增体重1.06 kg,每天每头牛可获纯利润0.59元。因此,育肥肉牛按其体重的1%添加精料较经济合理。Twenty healthy beef cattle （ Simmental crossbred） of 24 months old were divided randomly into two treatment groups according to the close weight. The first group was fed with the concentrate quantity of 1% of their body weight, while second group was 1.5% of their body weight. Both groups may freely feed lees and grass fodder. The results showed that the ADG of group I was 1.13 kg, and the net profit per day for each cattle was 2.9 RMB. However, that of group 11 were 1. 066 kg and 0.59 RMB, respectively. Therefore, it can be concluded that the concentrate quantity of the first group is more reasonable and economical.

关 键 词：育肥肉牛 增重 饲料利用率 

分 类 号：S816[农业科学—饲料科学]