Resumo -O objetivo deste trabalho foi avaliar tempo de passagem do alimento e seqüência de repleção e depleção dos órgãos no trato gastrintestinal de Salminus brasiliensis. Cem peixes (38,8±7,6 g) foram mantidos em 20 gaiolas (60 L), a 24,8±0,2ºC e alimentados com ração contendo 1% de Cr 2 O 3 . A cada 60 min a partir da primeira alimentação foram sacrificados cinco peixes e foi verificada a localização da digesta no trato gastrintestinal. A partir da segunda hora depois da alimentação, observou-se redução gradativa do conteúdo estomacal e subseqüente presença de digesta no intestino. Esse padrão se mantém até a 16 a hora; uma e duas horas depois, estômagos e intestinos, respectivamente, encontram-se completamente vazios.Termos para indexação: aqüicultura, trânsito gastrointestinal, manejo alimentar. Gastrointestinal transit of dry diet in Salminus brasiliensisAbstract -The objective of this work was to evaluate gastric transit time and sequence of repletion and depletion of Salminus brasiliensis gastrointestinal organs. One hundred fish (38.8±7.6 g) were kept in 20 cages (60 L) under 24.8±0.2ºC, and fed on practical feed, added of 1% Cr 2 O 3 . Every 60 minutes from the first feeding, five fish were sacrificed and it was verified the location of the digest in the gastrointestinal tract. From the second hour after the feeding, gradual reduction of the stomach content and subsequent presence of digest in the intestine were observed. This pattern was kept constant until the 16 th hour. One and two hours later stomach and intestine were totally empty, respectively.
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