INDUCED MATURATION AND SPAWNING OF PENAEUS INDICUS WITHOUT EYESTALK ABLATION


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Authors

  • M S Muthu Central Marine Fisheries Research Institute, Cochin-682018
  • A Laxminarayana Central Marine Fisheries Research Institute, Cochin-682018
  • K H Mohamed Central Marine Fisheries Research Institute, Cochin-682018

Abstract

Farm-grown Penaeus indiciis > 32.5 mm in carapace length ( > 150
mm T.L. and 25 g wt.) were induced to mature and spawn in captivity by merely
maintains the pH of the maturation pool at 8.1-8.2. The regulation of the pH
was done by daily addition of adequate quantities of Na2C03 to the recirculated
seawater. 61.8% of the experimental prawns matured and spawned and 81%
of the spawnings gave rise to normal healthy larvae. The average number of eggs
obtained per female was 119,614 and the average hatching rate was 82.5%. This
technique of inducing maturation eliminates the stress of eye-stalk ablation on
the broodstock.

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Author Biographies

  • M S Muthu, Central Marine Fisheries Research Institute, Cochin-682018
    Central Marine Fisheries Research Institute, Cochin-682018
  • A Laxminarayana, Central Marine Fisheries Research Institute, Cochin-682018
    Central Marine Fisheries Research Institute, Cochin-682018
  • K H Mohamed, Central Marine Fisheries Research Institute, Cochin-682018
    Central Marine Fisheries Research Institute, Cochin-682018

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Issue

Vol. 33 No. 2 (1986)

Section

Note

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

Muthu, M. S., Laxminarayana, A., & Mohamed, K. H. (2011). INDUCED MATURATION AND SPAWNING OF PENAEUS INDICUS WITHOUT EYESTALK ABLATION. Indian Journal of Fisheries, 33(2), 246-250. https://epubs.icar.org.in/index.php/IJF/article/view/10909