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No Thumbnail AvailableProjectIndonesia - Shrimp culture research. A report prepared for the brackishwater shrimp and milkfish culture applied research and training project 1979
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No results found.This report gives an account of penaeid shrimp culture development work including postlarval production, nursery rearing and pond culture. The postlarval culture method was established for Penaeus monodon and P. merguiensis using different types of culture vessels. The total number of postlarvae produced in 1975 was 580 300 and production has increased to over 4 million in 1977; this figure will be rapidly increased in 1978 from induced gonad maturation and spawning. The highest P. monodon postl arvae per brood in a 10 m3 tank was achieved by producing 375 000 with 73 percent survival, and 320 000 with 52 percent survival for P. merguiensis. Mass-culture systems of phytoplankton and rotifers were established for larval food organisms. The particulated soybean curd and rotifers were used for the larval diet to substitute for Artemia nauplii. Artemia will still be needed for a better survival rate. Various types of nursery methods were experimented on formulated diet and on natural food in ponds; the optimal nursery stocking densities were determined. A series of pond culture results indicated that interim fish extermination by using 7 ppm derris root extract was effective. The annual shrimp production in pond projected from preliminary results indicated that 600 kg per ha per year is possible, utilizing natural productivity with the fertilization but no feeding. This phase of the work needs to be repeated. Based on the experiments, recommendations are outlined for f urther work to increase production. -
No Thumbnail AvailableProjectThe culture and use of brine shrimp, Artemia salina, as food for hatchery-raised larval prawns, shrimps and fish in Southeast Asia 1978
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No results found.This paper is based on consultancy tours made in the Philippines, Thailand and Indonesia in Southeast Asia. These extended in intermittent periods from June 1976 to November 1978. Four visits were made to the Philippines where work was mainly done with the Aquaculture Department of the Southeast Asian Fisheries Development Center (SEAFDEC) and in Thailand and Indonesia with ongoing FAO/UNDP projects. The work in these countries varied from assistance on the effective use of acquired Artemia sali na in fish hatcheries to raising it in pilot-scale raceways and also initiation of trial cultures in natural saline earth ponds for the production of cysts.
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