商品肉鸡群爆发鸡马立克氏病的诊断

A Diagnosis of Marek's Disease in Merchandised Meat Chicken

某养殖场商品肉鸡群爆发一起急性传染病 ,通过流行病学调查、临床症状、病理变化、细菌分离和血清学试验诊断为马立克氏病 ( Marek's disease,MD)。同时对马立克氏病与禽淋巴细胞性白血病 ( lymphoidleukosis,L L)进行了鉴别诊断 ,并分析了该场马立克氏病免疫失败的原因。

An acute infectious disease broke out in merchandised meat chicken on a farm. Marek's disease is diagnosed by epidemic survey, clinical symptom, pathological examination, bacterial isolation and serological test. The differential diagnosis between Marek's disease and lymphoid leukosis is conducted and the failure reason of vaccination against Marek's disease on this farm is analyed.