Gut Hist
Gut Histology of Malaysian River Catfish, Mystus
nemurus (C&V) Larvae
Ghada Ahmed El Hag1, Mohd
Salleh Kamarudin2, Che Roos Saad2 and Siti Khalijah Daud3
1Department of Fisheries Science, Faculty of
Agricultura Technology and Fisheries Science, University of Alneelain,
Khartoum, Sudan.P.O.Box:12702.
2Faculty of Agriculture, Department of Aquaculture,
University Putra Malaysia,
3Faculty of Sciences Universitiy Putra Malaysia, 43400
UPM, Serdang, Selangor D. E., Malaysia
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.
[Ghada Ahmed El Hag, Mohd Salleh Kamarudin, Che Roos
Saad and Siti Khalijah Daud. Gut Histology of Malaysian. Life
Sci J 2012;9(1):342-347]. (ISSN: 1097-8135). http://www.lifesciencesite.com. 49
Key words: Malaysian river catfish; larvae; gut histology; Mystus nemerus.
