Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801)
The disposition, cellular organisation and biochemical nature of the exocrine pancreas were studied in three species of fishes viz., the mrigal, Cirrhinus mrigala, the Nile tilapia, Oreochromis niloticus and the wallago, Wallago attu using histological and histochemical techniques. Histological anal...
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fticar:oai:ojs3.epubs.icar.org.in:article/8321 2023-05-15T15:33:27+02:00 Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801) Chakrabarti, Padmanabha Ghosh, Saroj Kumar 2012-12-28 application/pdf https://epubs.icar.org.in/index.php/IJF/article/view/8321 eng eng Central Marine Fisheries Research Institute (on behalf of Indian Council of Agricultural https://epubs.icar.org.in/index.php/IJF/article/view/8321/11966 https://epubs.icar.org.in/index.php/IJF/article/view/8321 Copyright (c) 2014 Indian Journal of Fisheries Indian Journal of Fisheries; Vol. 59 No. 4 (2012) 0970-6011 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2012 fticar 2022-09-19T09:00:03Z The disposition, cellular organisation and biochemical nature of the exocrine pancreas were studied in three species of fishes viz., the mrigal, Cirrhinus mrigala, the Nile tilapia, Oreochromis niloticus and the wallago, Wallago attu using histological and histochemical techniques. Histological analysis demonstrated that the pancreatic tissues were dispersed within the hepatic parenchyma as a hepatopancreas in C. mrigala and O. nilotica. The structural analysis also showed that in C. mrigala, pancreatic tissues were also diffused within the spleen and in the adipose tissues among the intestinal coils. However, in W. attu, the discrete pancreatic tissue formed distinct acini interspersed with clear islet of Langerhans. In all the three species, the exocrine acinar cells were pyramidal, triangular or rhomboid in shape containing basal nucleus and apical densely packed zymogen granules. Histochemical study revealed that the zymogen granules of exocrine acinar cells of all the three species exhibit different intensities of tryptophan content, which is the precursor of various pancreatic enzymes. This is probably due to the variation in feeding habits of the species concerned. Article in Journal/Newspaper Attu Indian Agricultural Research Journals ( Indian Council of Agricultural Research) |
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Indian Agricultural Research Journals ( Indian Council of Agricultural Research) |
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English |
description |
The disposition, cellular organisation and biochemical nature of the exocrine pancreas were studied in three species of fishes viz., the mrigal, Cirrhinus mrigala, the Nile tilapia, Oreochromis niloticus and the wallago, Wallago attu using histological and histochemical techniques. Histological analysis demonstrated that the pancreatic tissues were dispersed within the hepatic parenchyma as a hepatopancreas in C. mrigala and O. nilotica. The structural analysis also showed that in C. mrigala, pancreatic tissues were also diffused within the spleen and in the adipose tissues among the intestinal coils. However, in W. attu, the discrete pancreatic tissue formed distinct acini interspersed with clear islet of Langerhans. In all the three species, the exocrine acinar cells were pyramidal, triangular or rhomboid in shape containing basal nucleus and apical densely packed zymogen granules. Histochemical study revealed that the zymogen granules of exocrine acinar cells of all the three species exhibit different intensities of tryptophan content, which is the precursor of various pancreatic enzymes. This is probably due to the variation in feeding habits of the species concerned. |
format |
Article in Journal/Newspaper |
author |
Chakrabarti, Padmanabha Ghosh, Saroj Kumar |
spellingShingle |
Chakrabarti, Padmanabha Ghosh, Saroj Kumar Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801) |
author_facet |
Chakrabarti, Padmanabha Ghosh, Saroj Kumar |
author_sort |
Chakrabarti, Padmanabha |
title |
Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801) |
title_short |
Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801) |
title_full |
Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801) |
title_fullStr |
Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801) |
title_full_unstemmed |
Comparative histophysiology of pancreas in Cirrhinus mrigala (Hamilton, 1822), Oreochromis niloticus (Linnaeus, 1758) and Wallago attu (Bloch & Schneider, 1801) |
title_sort |
comparative histophysiology of pancreas in cirrhinus mrigala (hamilton, 1822), oreochromis niloticus (linnaeus, 1758) and wallago attu (bloch & schneider, 1801) |
publisher |
Central Marine Fisheries Research Institute (on behalf of Indian Council of Agricultural |
publishDate |
2012 |
url |
https://epubs.icar.org.in/index.php/IJF/article/view/8321 |
genre |
Attu |
genre_facet |
Attu |
op_source |
Indian Journal of Fisheries; Vol. 59 No. 4 (2012) 0970-6011 |
op_relation |
https://epubs.icar.org.in/index.php/IJF/article/view/8321/11966 https://epubs.icar.org.in/index.php/IJF/article/view/8321 |
op_rights |
Copyright (c) 2014 Indian Journal of Fisheries |
_version_ |
1766364016179937280 |