The present work had as objective to evaluate different methodologies of feces collection in the determination of the protein digestibility of food feeds for the bullfrog (Rana catesbeiana). The studied methodologies were: total collection of excrements, partial collection of excrements using indicator, intestinal dissection, and excrement decantation with pointer using aquariums for assays of nutrition with fish. The results for CDA PB obtained in this assay were: 62.1%, 65.0%, 61.3% and 70.3% respectively. All the methods of excrement collection can be executed for determination of protein digestibility in bullfrog.
digestibility; bullfrog; Rana catesbeiana; feces collection
