J亚型禽白血病研究进展

J亚型禽白血病（AL-J）是由外源性J亚型禽白血病病毒（ALV-J）引起的致瘤性和免疫抑制性传染病。该病既可水平传播又可垂直传播，在中国鸡群中污染极为普遍且日趋复杂化，严重危害养鸡业的健康发展。由于该病迄今尚无疫苗和有效治疗药物，目前所采取的主要防控措施是对种鸡群净化。作者就其病原学、流行病学、诊断与防控等方面的研究近况进行了综述。

Research Progress on Subgroup J Avian Leukosis

Subgroup J avian leukosis is a name of tumorigenicity and immunosuppressive disease in avian caused by extrinsic subgroup J avian leukosis virus (ALV-J). ALV-J can infect chicks by the vertical and horizontal transmission. ALV-J is widespread through the flock and becomes more complicated in China. It has influnenced the development of poultry industry seriously. We have no vaccine and effective treatment to overcome up to now. Purifying breeder flocks is regarded the main control measure. The author reviewed the etiology, epizoology, isolation along with identification and controlling of subgroup J avian leukosis.