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Ontogenic development of the mouth and digestive tract in larval Malaysian mahseer, Tor tambroides Bleeker


Citation

Ramezani Fard, Ehsan and Kamarudin, Mohd Salleh and Harmin, Sharr Azni and Saad, Che Roos and Abd. Satar, Mustafa Kamal and Daud, Siti Khalijah (2011) Ontogenic development of the mouth and digestive tract in larval Malaysian mahseer, Tor tambroides Bleeker. Journal of Applied Ichthyology, 27 (3). pp. 920-927. ISSN 0175-8659; ESSN: 1439-0426

Abstract

This study analysed morphology and histology of the developing mouth and digestive tract of the Malaysian mahseer larvae to assess the best weaning time to a compound diet for the fry on the basis of their morphological features. The mouth development was monitored using light and scanning electron microscopy; the development of the alimentary canal was followed histologically using light microscopy after haematoxylin-eosin staining. The larval mouth opened 1 day after hatching (1 DAH); the histological structures of oesophagus were completed by 5 DAH. At 2 DAH, differentiation of enterocytes began, and at 7 DAH the supranuclear protein inclusion appeared in the posterior intestine. The hepatopancreas was structurally completed at 4–5 DAH, coinciding with the start of exogenous feeding and the evidence of lipid storage in the liver. It was concluded that Malaysian mahseer larvae should certainly be able to ingest, and possibly digest and absorb, a formulated diet of 287 μm Ø from 7 DAH onward.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Science
DOI Number: https://doi.org/10.1111/j.1439-0426.2010.01598.x
Publisher: Blackwell Verlag
Keywords: Mahseer; Ontegenic development; Tor tombroides; Mouth; Digestive tract
Depositing User: Norhazura Hamzah
Date Deposited: 10 Jun 2013 07:37
Last Modified: 25 Sep 2017 13:37
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1111/j.1439-0426.2010.01598.x
URI: http://psasir.upm.edu.my/id/eprint/15941
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