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Gut histology of Malaysian river catfish, Mystus nemurus (C&V) larvae.

Ahmed AlHag, Ghada and Kamarudin, Mohd. Salleh and Saad, Che Roos and Daud, Siti Khalijah (2012) Gut histology of Malaysian river catfish, Mystus nemurus (C&V) larvae. Life Science Journal, 9 (1). pp. 342-347. ISSN 1097-8135

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Abstract

For the successful weaning of M. nemurus larvae, the development of gut histology was observed. The eggs hatched two days after firtelization (2 daf) and most of the larvae hatched within 2-4 daf. The commencement of external feeding start on the 4 days post-hatch (dph). Fish larvae are charactrized by digestive system and diets that differ from adults. Larvae undergo a pattern of trophic ontogeny, changing with inceasung size, and these changes result in differences in digestive requierments. The histological development of the gut of M. nemurus larvae were investigated from hatching untile 21dph using a compound microscopy. During the yolk sac period, the gut is a simple, straight, undifferntiated tube thrghout its length.by 4-5 dph the gut differentiated to the oesophgus, stomach, and intestine. At first feeding, the larval gut is functional, but is structurally and functionally less complex than that of adults.By the 13 dph the larvae attained four tissue layers arrangement.

Item Type:Article
Keyword:Gut histology; Larvae; Malaysian river catfish; Mystus nemerus.
Faculty or Institute:Faculty of Agriculture
Faculty of Science
Publisher:Zhengzhou University
ID Code:23743
Deposited By: Nur Farahin Ramli
Deposited On:27 Jan 2014 15:58
Last Modified:28 Sep 2015 15:55

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