INDUCED MATURATION IN THE INDIAN SHORT-FINNED EEL ANGUILLA BICOLOR BICOLOR McCLBLLAND


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Authors

  • K Dorairaj Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.
  • D Kandasami Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.
  • R Soundararajan Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.

Abstract

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.

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Author Biographies

  • K Dorairaj, Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.
    Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.
  • D Kandasami, Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.
    Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.
  • R Soundararajan, Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.
    Mandapam Regional Centre of C.M.F.R. Institute, Mandapam Camp.

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Issue

Vol. 28 No. 1 & 2 (1981)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Dorairaj, K., Kandasami, D., & Soundararajan, R. (2011). INDUCED MATURATION IN THE INDIAN SHORT-FINNED EEL ANGUILLA BICOLOR BICOLOR McCLBLLAND. Indian Journal of Fisheries, 28(1 & 2), 233-239. https://epubs.icar.org.in/index.php/IJF/article/view/11945