几种抗病促生长饲料添加剂在肉仔鸡生产中应用效果的研究

试验选用1日龄健康艾维茵肉仔鸡雏1440只,随机分为8组,各组基础日粮及基础添加剂完全相同,各组间抗病促生长剂不同。共设计了5个不同的抗生素添加剂组(黄霉素、维吉尼亚霉素、杆菌肽锌、金霉素和林可霉素)、1个益生素加酶制剂组和本课题通过试验筛选出的两个中草药抗病促生长添加剂组。试验全程49d。试验结果表明:①益生素加酶制剂组7周龄体重显著低于其余7组(p<0.05),而其余7组间差异不显著(p>0.05);②各组间的7周龄存活率和料肉比差异不显著(p>0.05),但以益生素加酶制剂组最低;③试验中选用的几种抗生素,抗病促生长效果无显著差异;④两个中草药添加剂组与各抗生素组生产性能指标差异不显著,试验结果证明,筛选出的两组中草药添加剂在肉仔鸡饲料中可以替代或部分替代抗生素添加剂,达到相同的饲养效果。

Effects of Several Anti-disease and Promoting Growth Additives on the Production of Broiler Chicken

Avian chickens at age of 4 days, divided randomly into eight groups, were used in this experiment. They were fed with the same basal diet and additive, but different anti-disease and promoting growth additives. The eight groups included five antibiotic additive groups, one microbial ecological agents and enzyme product group (MEAEPG) and two Chinese herbal medicine groups sifted out by us through other tests. The experiment took 49 days. The results showed that:①The weight of MEAEPG was significantly lower than other seven groups (p>0.05), but no obvious differences were observed among the other seven groups; ②There were no obvious differences in the survival rate and ratio of diet to meat between eight groups (p>0.05) at 7 weeks age, but MEAEPG was the lowest; ③There were no obvious differences in effect of anti-disease and promoting growth among antibiotic additives; ④There was no obvious difference between the two Chinese herbal medicine groups and the antibiotic additive groups in the production. It was proved that the antibiotic additive could be replaced or partly replaced by Chinese herb medicine to get a same per for production of broiler chicken.