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On induced maturation in the Indian short-finned eel Anguilla bicolor bicolor McClelland

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Relation http://eprints.cmfri.org.in/573/
 
Title On induced maturation in the Indian short-finned eel
Anguilla bicolor bicolor McClelland
 
Creator Dorairaj, K
Kandasamy, D
Soundararajan, R
 
Subject Fish biology
 
Description After acdimaitisiag the eels Anguilla bicolor bicolor in sea water, various'
hormones viz., Gonadairaiphon F. S. H„ Gonadotraphon L. H. and Chorionic
Gonadotropin (Profasd) and OcirpHpituiiitiairy extracts were administered to different
dosages through intramuscular injections. By mepeated hormone JnjeotiJans maturatiion
w:b induced in both tihe sexes. flHr*i*tLallty one imaile eeil which was given 2000 IU
of Goaadoliraphon L.H. through four injections, reached spawning oondiiitilon 144
days after the first injection. Mter partial spawning, the eedl died on the same day.
The gamadosomiaitic index was 6.47 and eye index increased by 14.38%. Each sperms
itozoiid has a comma shaped body and a long ital. One female eel on which was
administered 240 mg of camp pituitary extract and 19,000 IU of Chorionic gonadotropin
(Profasd) 'hormone (ttorouglh 16 tojeotiians, attained1 'staiip-irOpe' condition
98 days after the first injedctfan and yielded 185,6 g of eggs on stripping. The
gonadosoiraaitic index was 33.5 The total weight and eye index of the eel increased
by 2.9% and 24.1%, respectively. The Mumiber of stripped aggs was estimated to be
0.35 million. The mature eggs were spherical and reJatdvely umlortn in suae measuring
1.00 mm (+ 0.08 mm) in diameter. Attempts made for amtificJJ fentdlisaton
wene not successful. Fully developed ovary of A. bicolor bicolor is described1.
 
Publisher CMFRI/ICAR
 
Date 1981
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/573/1/Article_21.pdf
Dorairaj, K and Kandasamy, D and Soundararajan, R (1981) On induced maturation in the Indian short-finned eel Anguilla bicolor bicolor McClelland. Indian Journal of Fisheries, 28 (1&2). pp. 233-239.