Comparative evaluation of growth, survival and production of carp species at different stocking densities under polyculture


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Authors

  • J K Jena Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.
  • S Ayyappan Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.
  • P K Aravindakshan Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.
  • H K Muduli Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.

Abstract

Experiments to evaluate the growth rates of different carp species, survival levels
and biomass production with respect to varied stocking densities ranging
between 2000 and 6000 numbers /ha were conducted in six ponds of 0.04 ha each
for a period of 11 months. Growth of all the species decreased with increase in
stocking densities, with mean size of harvest recorded being 1035 g, 725 g and
550 g in treatments with density of 2000, 4000 and 6000/ha respectively. In
general, exotic carp species showed higher growth rates than those of Indian
major carps in all the treatments. Even at the stocking level of 35%, the three
exotic carp species in combination contributed as much as 47.3 - 50.0% to the
harvested biomass in three treatments. The mean gross and net production levels
registered in treatment with density of 6000/ha were estimated as 2741 kg/
ha and 2706 kg/ha respectively during a culture period of 11 months. The corresponding
estimated production levels shown in treatments with density of 4000
and 2000/ha were 2367.5 kg/ha, 2342.5 kg/ha and 1815.0 kg/ha, 1802.5 kg/ha
respectively during the same period. The mean FCR values recorded in the three
treatments were in the range of 2.69-2.82.

Author Biographies

  • J K Jena, Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.
    Central Institute of Freshwater Aquaculture. Kausalyaganga,
    Bhubaneswar - 751 002, India.
  • S Ayyappan, Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.
    Central Institute of Freshwater Aquaculture. Kausalyaganga,
    Bhubaneswar - 751 002, India.
  • P K Aravindakshan, Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.
    Central Institute of Freshwater Aquaculture. Kausalyaganga,
    Bhubaneswar - 751 002, India.
  • H K Muduli, Central Institute of Freshwater Aquaculture. Kausalyaganga, Bhubaneswar - 751 002, India.
    Central Institute of Freshwater Aquaculture. Kausalyaganga,
    Bhubaneswar - 751 002, India.

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Issue

Vol. 48 No. 1 (2001)

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Articles

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How to Cite

Jena, J. K., Ayyappan, S., Aravindakshan, P. K., & Muduli, H. K. (2011). Comparative evaluation of growth, survival and production of carp species at different stocking densities under polyculture. Indian Journal of Fisheries, 48(1), 17-25. https://epubs.icar.org.in/index.php/IJF/article/view/8472