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 (p0.05), 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 (p0.05) 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.