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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. -
No Thumbnail AvailableProjectThe culture of the giant freshwater prawn (Macrobrachium rosenbergii de Man) in Cuba. Report of the first technical assessment mission, May 7th - 30th 1990 1990
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No results found.The Cuban government wish to expand the tourist industry as a sorce of much needed foreign exchange. Opportunites to supply and support the industry are actively being sought and include the provision of fish and shellfish foods from fisheries and aquaculture to supply the hotel and restaurant enterprises throughout the designated tourist areas. The culture of the Giant Freshwater prawn (Macrobrachium rosenbergii) is one such Trials are being made with pond reared stock using three methods to improve breeding; i) eyestalk ablation; ii) photoperiod manipulation; iii) artificial insemination. In the hatchery larvae are fed algae followed by minced clam, squid, marine fish and Artemia but Nippai prepared feeds are also used. A nursery phase is employed lasting 30–40 days which takes the shrimp from 5–10 day old post-larvae to 0.5 to 1.0 g juveniles. Stocking rate is 100/sq m but trials, have been made with 1000–2000 in 70 t tanks. In the on-growing phase shrimp are stocked at 5/m2, feed is given at from 15 to 2.5% per day and salinity is 25%. Feed costs around 200–250 pesos per tonne and contains squid, shrimp meal (from processed P. schmitti caught at sea) and zeolite. Problems with unstable artificial feed are common. Production is around 400–500 kg/ha/cycle and at present there are 1.6 to 1.7 cycles/yr. Newness of the ponds, inexperience and climatic changes are constraints on production. Early trials with P. notialis were not encouraging as growth stopped at 6–8 g, howev er new trials may be undertaken.
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