STUDIES ON THE PERFORMANCE OF 'OVATIDE' - ON BREEDING OF INDIAN MAJOR CARPS
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Authors
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NARESH C. DUTTA
Department of Zoology, University of Calcutta. 35-B.C. Road, Calcutta - 70019.
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SIDDHARTHA S. MISHRA
Department of Zoology, Vidyasagar University, Midnapor, West Bengal. 721102
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PRASENJIT PRADHAN
Department of Zoology, Vidyasagar University, Midnapor, West Bengal. 721102
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SUSANTA K. CHAKARABORTY
Department of Zoology, Vidyasagar University, Midnapor, West Bengal. 721102
Abstract
The paper deals with the experimental studies on breeding of Indian
Major Carps- Catla catla (Valenciennes), Labeo rohita (Hamilton), Cirrhinus
mrigala (Hamilton), & Labeo calbasu (Hamilton) with the help of 'Ovatide'
which is being used as an alternative inducing agent for commercial seed
production. This study has been conducted for six consecutive months (April
-September, 2000) in a stone-pitched breeding channels of a farm located at
Midnapore District, West Bengal. The doses of 'Ovatide' (0.5 mllkg of fish
weight) remained same for each female species during the entire study period
and males were released without any dose. The physicochemical parameters
of water during different months were estimated. The latency period and
fertilization percentage varied in different months and species. The results
confirmed that 'Ovatide' can be used successfully in a much more cost-effective
way for induced breeding of carps, even in rural fish farms with morrumpitched
breeding channels.
Keywords : Induced breeding, Indian Major Carps, Ovatide
