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Abstract
The clinical signs and gross lesions caused by Eimeria uzura (10(5) oocysts) in Japanese
quail (Coturnix coturnix japonica) exhibited little or no influence in the face of
intercurrent dietary aflatoxicosis (1 p.p.m. of aflatoxin B1 from Day 0 to 55). Similarly,
no significant differences in the mucosal morphology of the intestine were evident
histologically between the two groups of Japanese quail. The nervous signs of ataxia,
leg weakness, incoordination of movement, torticollis and terminal opisthotonos were
toxin-induced manifestations. In the aflatoxic quail, hypoplastic changes and selective
depletion of lymphocytes were more prominent in the bursa of fabricius. Increased
relative mean weights of liver, kidney, spleen, crop, proventriculus and gizzard were
observed in birds due to aflatoxin sensitivity. The combination of E. uzura infection
and aflatoxicosis in Japanese quail may cause significant weight loss, and increased
oocyst production and reproductive potential.