ABSTRACT
Avian lymphoid leukosis is reported in Roller canaries (Serinus canarius) from São Paulo city. The birds presented anorexia, raised feathers, apathy, body weight loss, accentuated pectoral musculature atrophy and increased abdominal volume and consistence. Necroscopic examination revealed expanded liver and kidney, with presence of subcapsular nodes, also a fibrinous yellowish mass observed in the cavity, of one of the birds. Diagnosis of avian lymphoid leukosis was made through histopathologic examination.
KEY WORDS:
Avian lymphoid leukosis; canaries; Serinus canarius.