Induced sex reversal and breeding of greasy grouper Epinephelus tauvina (Forskal)


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Authors

  • M Kailasam Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • A R T Arasu Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • Mathew Abraham Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • Munawar Sultana Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • P Shiranee Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • M Balakrishnan Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • G Thiagarajan Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • K Karaiyan Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
  • R Subburaj Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028

Abstract

Hormone doses required for induced breeding and induced sex reversal of females
to males in the greasy grouper Epinephelus tauvina were standardized. Spawning
was induced by multiple injection of HCG at doses ranging from 700 and 2400
IU/kg body weight and LHRHa @ 30-40μg/kg body weight. Females with initial
mean ova diameter of 450 μm and above responded well to hormone treatment.
The ovulation time ranged from 72 to 144 hrs. The fertilization rate was about
19% and hatching rate was 5-10%. Mortality of larvae was noticed on 4th and
7th days after hatching. Females were converted to oozing males in 6 – 9 months
by oral administration of 17α methyl testosterone hormone on alternate days @
2.0 mg/kg body weight.

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Author Biographies

  • M Kailasam, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • A R T Arasu, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • Mathew Abraham, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • Munawar Sultana, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • P Shiranee, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • M Balakrishnan, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • G Thiagarajan, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • K Karaiyan, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028
  • R Subburaj, Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road, R.A.Puram, Chennai-600 028
    Central Institute of Brackishwater Aquaculture, No.75, Santhome High Road,
    R.A.Puram, Chennai-600 028

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Issue

Vol. 54 No. 1 (2007)

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

Kailasam, M., Arasu, A. R. T., Abraham, M., Sultana, M., Shiranee, P., Balakrishnan, M., Thiagarajan, G., Karaiyan, K., & Subburaj, R. (2011). Induced sex reversal and breeding of greasy grouper Epinephelus tauvina (Forskal). Indian Journal of Fisheries, 54(1), 27-36. http://epubs.icar.org.in/index.php/IJF/article/view/6877