Low doses of steroid hormones and salmon gonadotropin induced oocyte maturation in catfish Heteropneustes fossilis


114 / 149

Authors

  • P K Nayak Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India
  • J Mishra Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India
  • B N Singh Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India
  • S Ayyappan Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India

Abstract

The effects of low doses of salmon gonadotropin (SG-GIOO) and three steroids, 17a-
20|3-dihydroxy progesterone (17a-20pP), deoxycorticosterone (DOC) and progesterone
individually or in combinations of steroid with SG-GlOO, on ovulation and
hatching in Heteropneustes fossilis (Bloch) were investigated. Steroids at any of
the three different dose levels (1, 1.5 and 2)ig/g b.w.) could not induce ovulation
when injected alone. 8(3—GlOO at a dose level of 10 pg/g b.w. was not effective,
whereas at the dose level of 15 pg/g b.w. could induce ovulation. All the three
steroids at their lowest doses (Ipg/g b.w.) when injected in combination with
SG-GIOO (lOpg/g b.w.) were significantly effective in inducing ovulation. The
17a-20pP in combination with SG-GIOO showed most effective combination as
compared to the other treatments when hatching percentage was taken into
account.

Downloads

Download data is not yet available.

Author Biographies

  • P K Nayak, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga,
    Bhubaneswar-751 002, Orissa, India
  • J Mishra, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga,
    Bhubaneswar-751 002, Orissa, India
  • B N Singh, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga,
    Bhubaneswar-751 002, Orissa, India
  • S Ayyappan, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga,
    Bhubaneswar-751 002, Orissa, India

Downloads

Issue

Vol. 47 No. 4 (2000)

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

Nayak, P. K., Mishra, J., Singh, B. N., & Ayyappan, S. (2011). Low doses of steroid hormones and salmon gonadotropin induced oocyte maturation in catfish Heteropneustes fossilis. Indian Journal of Fisheries, 47(4), 321-327. https://epubs.icar.org.in/index.php/IJF/article/view/8507