代乳料饲喂羔羊早期断奶试验研究

Study on Feeding Early-weaned Lamb with Milk Replacers

研究用3个不同配方的代乳料对羔羊进行早期断奶,对羔羊体重、成活率、体尺等指标的影响。选择80只25日龄杂交羔羊(小尾寒羊和本地羊),随机分为4组进行试验。3个试验组5日龄内用代乳料逐渐代替母乳,另一组为对照组(自然哺乳)。结果表明:①试验1组、2组、3组的只均日增重分别为:203.25 g、238.45 g、241.50 g、高于对照组的150.60 g,差异显著(P<0.05);②试验组羔羊体高、尻高、胸围、体长均高于对照组,试验组间无明显差异;③试验组成活率为100%,比对照组95%有所提高;④试验组羔羊断奶时每只均利润比对照组增加了40元以上。

The objective of this study was to evaluate the effects of.3 different formulations of replacers on body weight, survival rate and body size and so on. 80 25 - day - old crossbred lambs （ crossbred by Small - tail Han Sheep and local sheep） were randomly assigned to 4 groups. Breastmilk was replaced by replacers gradually during 5 days after birth in 3 test groups, breastfeeding was adopted in control group. The results showed that the average daily weight gains （203.25g, 237.45g and 241.50g, respectively in group 1, group 2 and group 3） were significantly higher than control group （150.60g） （P 〈0.05）. Body height, croup height, heart girth and body length of test groups were higher than control group, however, there was no significant difference among test groups. The survival rate of test groups was 100% and higher than control group （95%）. For each lamb, the average selling profit increased 40 Yuan than control group when they were weaned.