摘要
2500 chickens were treated intwo households （A and B）, and divided into a test group and a contrast group in each of the households. 0.5% of ＂Cumian No.l＂ was added to the feeds of 1- to 15-day-olds of the test group and 0.2% to the feeds of 16- to 44-day-olds of the test group. The result showed that compared with the contrast group, the average weight and survival rate increased by 4.786% and 2% respectively, and FIG decreased by 9.2% in the test group in household A; the average weight and survival rate increased by 3.608% and 2% respectively, and FIG decreased by 14.9% in the test group in household B.
选择同一批次科宝雏鸡2500只,分在两个专业户家进行试验,随机分为试验组和对照组;试验组1-15日龄日粮中添加0.5%“促免1号”,16-44日龄添加0.2%“促免1号”。试验表明:专业户A:试验组(A1)和对照组(A2)相比平均体重提高4.786%、成活率提高了2%、料肉比降低9.2%;专业户B:试验组(B1)和对照组(B2)相比平均体重提高3.608%、成活率提高2%、料肉比降低14.9%。这说明“促免1号”能缓解免疫应激,提高肉鸡日增重、成活率和降低料肉比的作用。
