Utilization of Organic Wastes for the Culture of Fish Feed Organisms

Download or read book Utilization of Organic Wastes for the Culture of Fish Feed Organisms written by A. Peter Marian and published by . This book was released on 1987 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rationalising the cost production of synthetic diet and requirements of a continous supply of live feed, mass culture of natural food organisms like Tubifex tubifex and Daphnia similis have been tried using organic wastes. D. similis was cultured using anaerobically treated (20days) poultry manure added at the rate of 4g/1 every 7 days; selective harvest of immature D. similis at very 7 days interval yielded 42 mg/l/week. T. tubifex was cultured using cowdung, coconut mesocarp and waste cabbage in rack culture as well as receways systems. Utilization of treated recycling water economised water cost to 80% and substrate cost to 15%. Raceways system was found to be suitable and sustained 2 kg worm production/m2 and yielded 1.2 kg worm/m2/month. Suitability of these culture conditions for continuous culture of fish feed organisms, was discussed in light of the low cost feed production technology. [Author's abstract].