Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)

SUMMARY: Given the importance of the Golden kingklip (Genypterus blacodes) as an alternative to the production of salmonid species for worldwide diversification of aquaculture this study researched the morpho-histology of the digestive canal, providing a uniform nomenclature and basic information to...

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Autores principales:	Salinas,P, Serrano,E, Sánchez,J. C, Godoy,M
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2020
Materias:	Golden Kingklip Digestive Canal Stomach Intestine Teleost Fish
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000300677
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spelling	oai:scielo:S0717-950220200003006772020-04-07Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)Salinas,PSerrano,ESánchez,J. CGodoy,M Golden Kingklip Digestive Canal Stomach Intestine Teleost Fish SUMMARY: Given the importance of the Golden kingklip (Genypterus blacodes) as an alternative to the production of salmonid species for worldwide diversification of aquaculture this study researched the morpho-histology of the digestive canal, providing a uniform nomenclature and basic information to support their nutritional management in captive conditions. The objective was to describe the normal morphology of the digestive canal. Twelve wild specimens were collected and dissected. Samples of the esophagus, stomach, liver, pyloric blind and intestines were obtained. An anatomical and histological description was performed. The digestive canal presented a short tubular esophagus, a slightly dilated, J-shaped stomach and thick walls. The stomach had a cardiac region that ended in a pyloric sphincter from which the intestine of thin walls. The intestine presented an anterior, middle and posterior segment. The anterior region of the first segment of the middle intestine presented 4-5 pairs of pyloric cecum. The middle intestine represented approximately 30 % of the total length of the digestive canal, with a smaller diameter compared to the first segment. The posterior intestine was separated from the middle intestine by a thick and powerful sphincter. The liver was large and elongated, and located in the peritoneal cavity located to the left plane and ventral to the swim bladder. The gallbladder was located lateral to the hepatic anterior wolf. The bile duct led to the duodenal region of the anterior intestine. Ventrally, the rectum ended in the anus, located in front of the anal fin. In general, the histological structures were variable according to the segment studied, a mucous tunic was recognized that presented a simple columnar epithelium, a lamina propria composed of loose connective tissue, a muscular layer of the mucosa composed of smooth muscle tissue and a submucosal layer composed of loose connective tissue, a circular and longitudinal stratum of muscular tunic, which had striated musculature and an adventitial tunic composed of a simple squamous epithelium. In conclusion, Golden kingklip (Genypterus blacodes) presents a digestive system typical of a carnivorous benthic fish adapted to feed on fish and crustaceans.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.38 n.3 20202020-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000300677en10.4067/S0717-95022020000300677
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Golden Kingklip Digestive Canal Stomach Intestine Teleost Fish
spellingShingle	Golden Kingklip Digestive Canal Stomach Intestine Teleost Fish Salinas,P Serrano,E Sánchez,J. C Godoy,M Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)
description	SUMMARY: Given the importance of the Golden kingklip (Genypterus blacodes) as an alternative to the production of salmonid species for worldwide diversification of aquaculture this study researched the morpho-histology of the digestive canal, providing a uniform nomenclature and basic information to support their nutritional management in captive conditions. The objective was to describe the normal morphology of the digestive canal. Twelve wild specimens were collected and dissected. Samples of the esophagus, stomach, liver, pyloric blind and intestines were obtained. An anatomical and histological description was performed. The digestive canal presented a short tubular esophagus, a slightly dilated, J-shaped stomach and thick walls. The stomach had a cardiac region that ended in a pyloric sphincter from which the intestine of thin walls. The intestine presented an anterior, middle and posterior segment. The anterior region of the first segment of the middle intestine presented 4-5 pairs of pyloric cecum. The middle intestine represented approximately 30 % of the total length of the digestive canal, with a smaller diameter compared to the first segment. The posterior intestine was separated from the middle intestine by a thick and powerful sphincter. The liver was large and elongated, and located in the peritoneal cavity located to the left plane and ventral to the swim bladder. The gallbladder was located lateral to the hepatic anterior wolf. The bile duct led to the duodenal region of the anterior intestine. Ventrally, the rectum ended in the anus, located in front of the anal fin. In general, the histological structures were variable according to the segment studied, a mucous tunic was recognized that presented a simple columnar epithelium, a lamina propria composed of loose connective tissue, a muscular layer of the mucosa composed of smooth muscle tissue and a submucosal layer composed of loose connective tissue, a circular and longitudinal stratum of muscular tunic, which had striated musculature and an adventitial tunic composed of a simple squamous epithelium. In conclusion, Golden kingklip (Genypterus blacodes) presents a digestive system typical of a carnivorous benthic fish adapted to feed on fish and crustaceans.
author	Salinas,P Serrano,E Sánchez,J. C Godoy,M
author_facet	Salinas,P Serrano,E Sánchez,J. C Godoy,M
author_sort	Salinas,P
title	Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)
title_short	Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)
title_full	Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)
title_fullStr	Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)
title_full_unstemmed	Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)
title_sort	anatomical and histological characterization of the digestive canal of the golden kingklip (genypterus blacodes)
publisher	Sociedad Chilena de Anatomía
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000300677
work_keys_str_mv	AT salinasp anatomicalandhistologicalcharacterizationofthedigestivecanalofthegoldenkingklipgenypterusblacodes AT serranoe anatomicalandhistologicalcharacterizationofthedigestivecanalofthegoldenkingklipgenypterusblacodes AT sanchezjc anatomicalandhistologicalcharacterizationofthedigestivecanalofthegoldenkingklipgenypterusblacodes AT godoym anatomicalandhistologicalcharacterizationofthedigestivecanalofthegoldenkingklipgenypterusblacodes
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Anatomical and Histological Characterization of the Digestive Canal of the Golden Kingklip (Genypterus blacodes)

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