Morphological and anatomical characterization of the digestive tract of Centropomus parallelus and C. undecimalis

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dc.contributor.authorMachado, Márcia Regina Fragoso
dc.contributor.authorSouza, Helena de Oliveira
dc.contributor.authorde Souza, Valderes Lemos
dc.contributor.authorde Azevedo, Alexandre
dc.contributor.authorGoitein, Roberto [UNESP]
dc.contributor.authorNobre, André Dias
dc.contributor.institutionUniversidade Nilton Lins
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionFundação Oswaldo Cruz
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T09:12:16Z
dc.date.available2022-04-29T09:12:16Z
dc.date.issued2013-01-01
dc.description.abstractCentropomus parallelus and C. undecimalis are the most common species of Centropomidae in Brazil. Some authors attribute their failure to grow under in artificial conditions due to limited knowledge on the morphological and functional development of their digestive system and on nutrition requirements of both species. Current research characterizes histologically and histochemically the digestive tract of C. parallelus and C. undecimalis to provide a histophysiological assessment for studies related to their nutritional needs. In the esophagus, the mucous cells in the epithelium stained positively for PAS and AB. In the stomach, positive reactions to PAS and negative to AB respectively occurred on surface and mucous cells in the epithelium and in the lamina propria. In the intestine, goblet cells showed ratio similarity, with mucus being positive in AB and PAS. A greater concentration of these cells existed in the middle and distal intestine, with a greater increase of secretions when compared to those in the proximal intestine. Results show that C. parallelus and C.undecimalis display the main features of the digestive tract of carnivorous fish, a well-developed stomach and a relatively short intestine. In fact, they give insights for future studies on the mechanisms related to the species's digestive and absorptive physiology.en
dc.description.affiliationUniversidade Nilton Lins, Av. Professor Nilton Lins, 3259, 69058-030, Manaus, Amazonas
dc.description.affiliationNúcleo de Pesquisa em Ecologia e Desenvolvimento Sócio Ambiental de Macaé Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro
dc.description.affiliationFundação Oswaldo Cruz, Salvador, Bahia
dc.description.affiliationInstituto de Biociências Universidade Estadual Paulista, Rio Claro, São Paulo
dc.description.affiliationUnespInstituto de Biociências Universidade Estadual Paulista, Rio Claro, São Paulo
dc.format.extent467-474
dc.identifierhttp://dx.doi.org/10.4025/actascibiolsci.v35i4.14352
dc.identifier.citationActa Scientiarum - Biological Sciences, v. 35, n. 4, p. 467-474, 2013.
dc.identifier.doi10.4025/actascibiolsci.v35i4.14352
dc.identifier.issn1807-863X
dc.identifier.issn1679-9283
dc.identifier.scopus2-s2.0-84890514593
dc.identifier.urihttp://hdl.handle.net/11449/232187
dc.language.isoeng
dc.language.isopor
dc.relation.ispartofActa Scientiarum - Biological Sciences
dc.sourceScopus
dc.subjectCentropomus
dc.subjectDigestive tract
dc.subjectFeeding habits
dc.subjectHistology
dc.titleMorphological and anatomical characterization of the digestive tract of Centropomus parallelus and C. undecimalisen
dc.titleCaracterização Morfológica e Anatômica do Tubo Digestório de Centropomus parallelus e C. undecimalispt
dc.typeArtigo

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