Oliveira, C.A.F. Reis, T.A. Albuquerque, R. Guerra, J.L. Correa, B. Hepatic lesions in laying hens chronically exposed to rations containing different levels of aflatoxin B1 Subjects--Topical Terms: AFLATOXINATOXIDEZLESÃO HEPÁTICAGALINHA PARA POSTURARAÇÃOFÍGADO