Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1017/S0967199420000015 http://hdl.handle.net/11449/209547 |
Resumo: | In the present study, the morphological development of theBrycon amazonicusdigestive tract is described to provide basic knowledge for nutritional studies and, therefore, increase the survival of this species during larviculture. Samples were collected from hatching up to 25 days of age, measured, processed and observed under a stereomicroscope and light microscopy. Newly hatched larvae presented their digestive tract as a straight tube, dorsal to the yolk sac, lined with a single layer of undifferentiated cells. At 24 h post-hatching (hPH), the buccopharyngeal cavity was open, but the posterior region of the digestive tube remained closed. At 25 hPH, the digestive tube was completely open and could be divided into buccopharyngeal cavity, oesophagus and intestine. At 35 hPH, the intestine presented a dilatation in the proximal region, which had the function of storing food. Differentiation of the stomach started at 83 hPH, and mucous cells were observed in the epithelium. These cells are important in the production of mucus, whose function is to protect the organ against acidity, although the gastric glands began developing only from 171 hPH, when three stomach regions were observed: cardiac, fundic and pyloric. The gastric glands were observed in the cardiac region, indicating that this organ already had digestive functionality. From 243 hPH, the absorption and assimilation of nutrients were already possible but, only from 412 hPH, the digestive tract was completely developed and functional. |
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Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stageDevelopmentDigestionFish larvaeHistologyMorphologyIn the present study, the morphological development of theBrycon amazonicusdigestive tract is described to provide basic knowledge for nutritional studies and, therefore, increase the survival of this species during larviculture. Samples were collected from hatching up to 25 days of age, measured, processed and observed under a stereomicroscope and light microscopy. Newly hatched larvae presented their digestive tract as a straight tube, dorsal to the yolk sac, lined with a single layer of undifferentiated cells. At 24 h post-hatching (hPH), the buccopharyngeal cavity was open, but the posterior region of the digestive tube remained closed. At 25 hPH, the digestive tube was completely open and could be divided into buccopharyngeal cavity, oesophagus and intestine. At 35 hPH, the intestine presented a dilatation in the proximal region, which had the function of storing food. Differentiation of the stomach started at 83 hPH, and mucous cells were observed in the epithelium. These cells are important in the production of mucus, whose function is to protect the organ against acidity, although the gastric glands began developing only from 171 hPH, when three stomach regions were observed: cardiac, fundic and pyloric. The gastric glands were observed in the cardiac region, indicating that this organ already had digestive functionality. From 243 hPH, the absorption and assimilation of nutrients were already possible but, only from 412 hPH, the digestive tract was completely developed and functional.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Paulista CAUNESP, Ctr Aquicultura, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Sao Paulo, BrazilPiscicultura Buriti, POB 198, BR-78450000 Nova Mutum, Mato Grosso, BrazilUniv Estadual Paulista, Inst Biociencias Rio Claro, Dept Zool, Ave 24-A,1515, BR-13506900 Sao Paulo, BrazilUniv Estadual Paulista CAUNESP, Ctr Aquicultura, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Sao Paulo, BrazilUniv Estadual Paulista, Inst Biociencias Rio Claro, Dept Zool, Ave 24-A,1515, BR-13506900 Sao Paulo, BrazilCambridge Univ PressUniversidade Estadual Paulista (Unesp)Piscicultura BuritiNeumann, Erika [UNESP]Paes, Maria do Carmo Faria [UNESP]Mendes, Jose Mario RibeiroBraga, Francisco Manoel de Souza [UNESP]Nakaghi, Laura Satiko Okada [UNESP]2021-06-25T12:21:53Z2021-06-25T12:21:53Z2020-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article208-216http://dx.doi.org/10.1017/S0967199420000015Zygote. New York: Cambridge Univ Press, v. 28, n. 3, p. 208-216, 2020.0967-1994http://hdl.handle.net/11449/20954710.1017/S0967199420000015WOS:000577634900006Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengZygoteinfo:eu-repo/semantics/openAccess2024-04-09T15:10:36Zoai:repositorio.unesp.br:11449/209547Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:37:16.811699Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage |
title |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage |
spellingShingle |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage Neumann, Erika [UNESP] Development Digestion Fish larvae Histology Morphology |
title_short |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage |
title_full |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage |
title_fullStr |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage |
title_full_unstemmed |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage |
title_sort |
Ontogeny of the digestive tract ofBrycon amazonicus(Teleostei, Bryconidae) under culture conditions: from hatching to juvenile stage |
author |
Neumann, Erika [UNESP] |
author_facet |
Neumann, Erika [UNESP] Paes, Maria do Carmo Faria [UNESP] Mendes, Jose Mario Ribeiro Braga, Francisco Manoel de Souza [UNESP] Nakaghi, Laura Satiko Okada [UNESP] |
author_role |
author |
author2 |
Paes, Maria do Carmo Faria [UNESP] Mendes, Jose Mario Ribeiro Braga, Francisco Manoel de Souza [UNESP] Nakaghi, Laura Satiko Okada [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Piscicultura Buriti |
dc.contributor.author.fl_str_mv |
Neumann, Erika [UNESP] Paes, Maria do Carmo Faria [UNESP] Mendes, Jose Mario Ribeiro Braga, Francisco Manoel de Souza [UNESP] Nakaghi, Laura Satiko Okada [UNESP] |
dc.subject.por.fl_str_mv |
Development Digestion Fish larvae Histology Morphology |
topic |
Development Digestion Fish larvae Histology Morphology |
description |
In the present study, the morphological development of theBrycon amazonicusdigestive tract is described to provide basic knowledge for nutritional studies and, therefore, increase the survival of this species during larviculture. Samples were collected from hatching up to 25 days of age, measured, processed and observed under a stereomicroscope and light microscopy. Newly hatched larvae presented their digestive tract as a straight tube, dorsal to the yolk sac, lined with a single layer of undifferentiated cells. At 24 h post-hatching (hPH), the buccopharyngeal cavity was open, but the posterior region of the digestive tube remained closed. At 25 hPH, the digestive tube was completely open and could be divided into buccopharyngeal cavity, oesophagus and intestine. At 35 hPH, the intestine presented a dilatation in the proximal region, which had the function of storing food. Differentiation of the stomach started at 83 hPH, and mucous cells were observed in the epithelium. These cells are important in the production of mucus, whose function is to protect the organ against acidity, although the gastric glands began developing only from 171 hPH, when three stomach regions were observed: cardiac, fundic and pyloric. The gastric glands were observed in the cardiac region, indicating that this organ already had digestive functionality. From 243 hPH, the absorption and assimilation of nutrients were already possible but, only from 412 hPH, the digestive tract was completely developed and functional. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06-01 2021-06-25T12:21:53Z 2021-06-25T12:21:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1017/S0967199420000015 Zygote. New York: Cambridge Univ Press, v. 28, n. 3, p. 208-216, 2020. 0967-1994 http://hdl.handle.net/11449/209547 10.1017/S0967199420000015 WOS:000577634900006 |
url |
http://dx.doi.org/10.1017/S0967199420000015 http://hdl.handle.net/11449/209547 |
identifier_str_mv |
Zygote. New York: Cambridge Univ Press, v. 28, n. 3, p. 208-216, 2020. 0967-1994 10.1017/S0967199420000015 WOS:000577634900006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Zygote |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
208-216 |
dc.publisher.none.fl_str_mv |
Cambridge Univ Press |
publisher.none.fl_str_mv |
Cambridge Univ Press |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128389147525120 |