TY - SER AU - Korndorfer,C.M. AU - Meirelles,C.F. AU - Bueno,I.C.da S. AU - Abdalla,A.L. TI - Evaluation of extraction methods for progesterone determination in rabbit (Oryctolagus cuniculus)feces by radioimmunoassay KW - COELHO KW - FEZES KW - BIOLOGIA ANIMAL KW - CIÊNCIA KW - EXAME ER -