Endocrine cells in the enteric mucosa of an important brazilian hybrid fish

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DOI:

https://doi.org/10.6008/CBPC2318-2881.2022.002.0004

Keywords:

Argentafins, Argyrophils, Fish intestine, Histology, Enteric histology

Abstract

The jundiara (Pseudoplatystoma reticulatum x Leiarius marmoratus) is a hybrid widely cultivated in Brazil due to its organoleptic characteristics, rusticity, for being easy to cultivate, and for having a pleasant flavor. The endocrine cells of the intestinal tract play an important role in fish nutrition, being related to enteric digestion and absorption. The objective of this study was to investigate the presence of endocrine cells in the intestinal tract of catfish. Ten fish were necropsied and three fragments collected from each region of the intestine were fixed in formalin, histologically processed and the slides were stained using the Grimelius and modified Masson-Fontana techniques. The argyrophil and argentaffin endocrine cells were found in the intestinal mucosa distributed between the enterocytes and calliciform cells and in the lamina propria. Two types of cells were observed regarding their opening, (i) open to the lumen (ii) closed surrounded by connective tissue in the lamina propria. Knowledge of the intestinal morphology in hybrid species is important because it can contribute significantly to the management and adaptation of captive species

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Author Biography

Lucimar Rodrigues Vieira Curvo, Instituto Federal de Mato Grosso

Possui graduação em Licenciatura Plena em Ciências Biológicas pelo Centro Universitário de Várzea Grande (2004) e Mestrado em Ecologia e Produção Sustentável pela Pontifícia Universidade Católica de Goiás (2014). Atualmente é professora de Educação Básica, Técnica e Tecnológica do Instituto Federal de Mato Grosso (Campus Cuiabá). Doutora em Ciências Ambientais e Sustentabilidade Agropecuária pela Universidade católica Dom Bosco (Campo Grande/MS). Tem experiência na área de Ecologia Aplicada, com ênfase Ciências Ambientais, atuando principalmente nos seguintes temas: educação, sustentabilidade, o uso de Prebióticos Fitogênicos e Probióticos na suplementação através da alimentação de peixes criados em Sistemas de Recirculação de Água, com ou sem Desafios Sanitários e avaliações de desempenho produtivo e HistoPatologia Ictiológica computacional (Histomorfometria)

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Published

2023-01-09

Issue

Vol. 15 No. 2 (2022): Nature and Conservation - Mar, Abr, Mai 2022

Section

Biologia Estrutural

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Copyright (c) 2023 Nature and Conservation

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