Effect of stocking density on growth performance,survival, production,and financial benefits of African sharptooth catfish (Clarias gariepinus) monoculture in earthen ponds |
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| Authors: | Amon P. Shoko Samwel M. Limbu |
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| Affiliation: | 1. Tanzania Fisheries Research Institute, Headquarters, Dar es Salaam, Tanzania;2. Department of Aquatic Sciences and Fisheries, University of Dar es Salaam, Dar es Salaam, Tanzania;3. Department of Biology, School of Life Sciences, Laboratory of Aquaculture Nutrition and Environmental Health, East China Normal University, Shanghai, China |
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| Abstract: | ABSTRACTThe present on-farm study assessed the effect of different stocking densities on growth, production, and financial benefits of African sharptooth catfish (Clarias gariepinus) in earthen ponds for 180 days. Low stocking density (LSD), medium stocking density (MSD), and high stocking density (HSD) of 3, 6, and 9 fish m?2, respectively, were tested. C. gariepinus stocked at LSD and MSD showed significantly higher weight gain, specific growth rate, and final mean weight than those cultured at HSD (P < .05). There was a significant linear relationship between the stocking density and the yields and financial variables (P < .05). Net fish yields were significantly higher for C. gariepinus reared at HSD and MSD than those stocked at LSD (P < .05). Similarly, C. gariepinus raised at MSD and HSD generated significantly more profit than those cultured at LSD (P < .05). Results demonstrated that farmers can achieve high net yield and financial benefits by stocking C. gariepinus at HSD of 9 fish m?2. |
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| Keywords: | African sharptooth catfish financial benefits growth stocking density yield |
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