Yields of the African catfish,Clarias gariepinus (Burchell), from a low input,homestead, concrete pond |
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| Institution: | 1. Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom;2. Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary;1. Department of Basic Veterinary, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, Sichuan, China;2. Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, College of Life Science, Neijiang Normal University, Neijiang 641100, PR China;3. College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China |
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| Abstract: | Fingerlings of the African catfish, Clarias gariepinus (Burchell), with a mean initial average weight of 96.2 g per fish were cultured in a dug-in homestead concrete pond, 30.24 m2 in four cycles (1981–1984) for a mean average of 302 days. A mean average weight of 418.4 g per fish was obtained at harvest, resulting in an overall net fish yield of 40.3 kg. Homemade ration was used in the investigation and the feed conversion ratio was 2.6 to 1. There was a mean daily increase in individual fish weight of 1.06 g with overall fish survival of 86.4%. |
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