159 resultados para AFRICAN CATFISH


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Condition factor based on length-weight relationship and food and feeding habits of Arius dussumieri (Black lip sea catfish) and Osteogeneiosus militaris (Soldier catfish) from the Mumbai coast have been studied. Relative Condition Factor showed variations on a monthly basis, and appear to be influenced by feeding and breeding activities. Both the species studied are carnivorous bottom feeders, with crustaceans followed by other smaller fishes forming the major food item in the gut contents.

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This article deals with the biology, broodstock management, seed production techniques and grow-out culture practices in C. macrocephalus.

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Catfish rank fifth in the world in terms of fresh and brackishwater fish culture. In Asia and the Pacific, the Clariidae family dominates production, representing nearly 80% of the total catfish production. Among the most cultured species are Clarias batrachus, C. macrocephalus, C. gariepinus. The domestic market generally absorbs catfish produce in Asia, although high-producing countries like Thailand and Vietnam engage in export. There are two basic markets for catfish: live fish and processed fish. Particular details are given of catfish production in Thailand, Indonesia and Malaysia.

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The catfish industry in the Philippines is budding and projected to expand in the coming years. This is evident from conversations with active catfish farmers who all hope to be able to expand production, whether backyard or commercial because their present production can hardly supply the demands of buyers. NIFTDC, a fisheries technology and development center in Dagupan City, Philippines, however, says that unless the government has a catfish program, expansion of the industry would be slow. Work on catfish research is only just starting and the culture methods remain to be on a gut feel basis. The farmers are left to survive on their own. Luckily for them, catfish is hardy, easy to grow, and has a growing market. Clearly, if catfish can provide cheap protein for more people, scientific support must be made available for the farmers.

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Catfish rank fifth in the world in terms of fresh and brackishwater fish culture. In Asia and the Pacific, the Clariidae family dominates production, representing nearly 80% of the total catfish production. Among the most cultured species are Clarias batrachus, C. macrocephalus, C. gariepinus. The domestic market generally absorbs catfish produce in Asia, although high-producing countries like Thailand and Vietnam engage in export. There are two basic markets for catfish: live fish and processed fish. Particular details are given of catfish production in Thailand, Indonesia and Malaysia.

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The Annual report covers activities of the organization during the reporting period. It explains the scientific work carried out by the organization, the establishment of the Lake Victoria Fisheries Commission and the African Journal of Tropical Hydrobiology and Fisheries.

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The Annual report presents activities carried out by the Organization during the period 1973. It presents scientific work of the Organization which include: Tissue specificity of malate dehydrogenase in Astatoreochromis and two species of haplochromis, report on LaKe Babati Fishery, Observations on Engraulicypris orgenteus (PELLEGRIN) 1904 from Lake Victoria, Commercial trawl fishing on Lake Victoria: Fisheries development and conservation, Lunar periodicity and the breeding of Tilapia nilotica in the Northern part of Lake Victoria.

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The Annual report presents activities carried out by the Organization during the reporting period 1970. It explains the scientific work carried out by the Organization which includes: bottom trawl survey, a limnological survey of Lake Victoria for the period January to December 1970, maturity, sex ration and fecundity of lung fish (protopterus aethiopicus Heckel) from Lake Victoria, On the fish species of Lake Baringo, identification of organisms in Lake Victoria responsible for ecosounder traces, further observations on the ecology of the Nile perch (Lates niloticus Linne) in Lake Victoria and Lake Kioga, fishery economics studies, The African journal of Tropical Hydrobiology and fisheries and observation on fish marketing experiments in Tanzania

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The annual report present activities carried out by the different organizations that make up the East African Agricultural & Fisheries Research Council which covers reports from the following Organisations: I. Report of the East African Agriculture and Forestry Research Organization 2. Report of the East African Fishery Research Organization 3. Report of the East African Marine Fisheries Research Organization 4. Report of the East African Trypanosomiasis Research Organization 5. Report of the East African Veterinary Research Organization The activities reported are for the period 1958

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The annual report present activities carried out by the different organizations that make up the East African Agricultural & Fisheries Research Council which included: 1. Report of the East African Agriculture & Forestry Research Organization 2. Report of the East African Veterinary Research Organization 3. Report of the East African Fishery Research Organization 4. Report of the East African Marine Fisheries Research Organization The activities reported are for the period 1954-55.