国家现代农业产业技术体系项目（CARS-41）, 安徽省现代农业肉禽产业发展资金项目, 安徽省科技攻关项目(11010302119), 安徽省家禽产业技术体系专项和安徽省农科院科技创新团队项目（11C0404）共同资助。
To investigate the difference of production performance between avian leukosis and pullorum eradicated and non-eradicated chickens, the mortality, egg-laying, egg hatching and offspring production performance were compared between eradication and non-eradication groups in local chicken breed. The results showed that the mortality significantly decreased in eradication group and its offspring compared with non-eradication group, and laying rate increased 5.91% in chickens at the age of 6-11 months, and average egg weight significantly increased (P<0.05), while feed-to-egg rate certainly decreased (0.46%) in eradication group. However, a obvious increase on the hatchable rate, fertilization rate, hatching rate and healthy hatching rate were observed in the eradication group. The weight of offspring (cock and hen) in the eradication group (except 1-month hen) was weightier than that of non-eradication group of 1-3 month, especially the weight of 2-month-old hen (P<0.05). There was a certain increase in average daily-gain and total weight-gain (24.80 g) at period of 3-month, and feed-to-weight rate was lower (0.05) than that in the eradication group. The above consequences manifested that the production performance of eradicated chickens were significantly better than that of the non-eradicated flocks, and the breeding efficiency could be significantly improved .There are significant economic benefits to carry out the eradication of avian leukosis and pullorum for breeders.