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Ontogeny of lymphoid organs in the Asian seabass (Lates calcarifer Bloch)

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Title Ontogeny of lymphoid organs in the Asian seabass (Lates calcarifer Bloch)
Not Available
 
Creator Azad.I.S
A.R.Thirunavukkarasu
M. Kailasam
R.Subburaj
Rajan.J.J.S
 
Subject Ontogeny
Lymphoid organs
Hatchery-reared
Larvae juveniles
 
Description Not Available
Ontogeny of the lymphoid organs of hatchery-reared larvae/juveniles Lates cal carifer (Bloch) was studied from zero day post hatch (dph) to 60 dph. Histological sec tions of the samples, collected at daily intervals from zero dph till 25 dph, and at weekly
intervals till 60 dph were examined. The thymus was first noticed, at 2 dph, as a bi-lobed
organ, situated dorso-posteriorly in the oro-pharyngeal cavity, in the angle between the
opercular bone and the head bone. The lymphoid kidney (pronephros) was seen with
undifferentiated stem cells at 2 dph, though the excretory kidney tubules were noticed at
zero dph. The developed kidney runs ventral to the vertebral column all along the length
of the peritoneal cavity, distinctly bi-lobed at its proximal end forming the head-kidney
and fused in the mid and tail kidney portions. The spleen, seen mostly as an erythropoietic
organ, is capsulated and appeared, at 2 dph, attached to the mesogastrium. The sequence
of development of these lymphoid organs was: the thymus (2 dph), the kidney (excretory
kidney-0 dph and lymphoid kidney -2dph), the spleen (2 dph) and the gut associated
lymphoid tissue (GALT, 5 dph). Various cellular components of these lymphoid organs
and their probable role in immune response of the fish have been discussed.
Not Available
 
Date 2023-11-21T10:09:19Z
2023-11-21T10:09:19Z
2009-01-01
 
Type Journal
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/80909
 
Language English
 
Relation Not Available;
 
Publisher Not Available