Advances in milkfish biology and culture: proceedings of the Second International Milkfish Aquaculture Conference, 4-8 October 1983, Iloilo City, Philippines
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Abstracts of the 17 papers presented at the conference are cited individually in this issue.
International Milkfish Aquaculture Conference, Southeast Asian Fisheries Development Center, & International Development Research Centre (Canada). (1984). Advances in milkfish biology and culture: proceedings of the Second International Milkfish Aquaculture Conference, 4-8 October 1983, Iloilo City, Philippines. (J. V. Juario, R. P. Ferraris, & L. V. Benitez, Eds.). Metro Manila, Philippines: Published by Island Pub. House in association with the Aquaculture Dept., Southeast Asian Fisheries Development Center and the International Development Research Centre. http://hdl.handle.net/10862/1838
PublisherAquaculture Department, Southeast Asian Fisheries Development Center; International Development Research Centre; Island Publishing House, Inc.
TypeBook; Conference publication
Format243 p. : ill.
The financial and moral support of IDRC and SEAFDEC, the hard work and dedication of the chairmen and members of the SIMAC Committees, the encouragement from the SEAFDEC staff, and the welcome provided by many national and local government officials are gratefully acknowledged.
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Book chapterEGT de Jesus-Ayson - In IC Liao & EM Leaño (Eds.), Milkfish aquaculture in Asia, 2010 - National Taiwan University; The Fisheries Society of Taiwan; Asian Fisheries Society; World Aquaculture SocietyCulture of milkfish in brackish water ponds has been practiced for many years in the Philippines and recently its culture has expanded to fish cages in marine waters. Following the spontaneous spawning of milkfish in floating net cages in 1979, protocols for its seed production were developed. Studies to determine sustainable culture techniques in ponds and cages were conducted. Studies on nutritional requirements of milkfish at different developmental stages were done to reduce dependence on live prey organisms during hatchery operations and optimize feed formulations for nursery and grow-out cultures. In recent years, research geared towards the environmental impact of milkfish culture and ways to mitigate the negative effects of intensive farming practices. Prospects for the milkfish industry are discussed in light of the recent advances in milkfish R&D and Philippine government initiatives to increase fish production by mariculture.
Competitive and comparative advantages of brackishwater aquaculture of tiger shrimp, mud crab, and milkfish in the Philippines in 1985-1995 LA Gonzales, CD Elca, VA Gonzales, PA Alviola IV, FJ Paraguas & C Olalo - In T Bagarinao (Ed.), Research Output of the Fisheries Sector Program, 2007 - Bureau of Agricultural Research, Department of AgricultureThe brackishwater aquaculture sector contributes considerably to the growth of the fisheries sector. Tiger shrimp Penaeus monodon, mud crab Scylla serrata, and milkfish Chanos chanos, in particular are efficient users of domestic resources and earners of foreign exchange. These three commodity sectors have not been fully developed because of inadequate policies in research, technology generation, and extension, and in public investment and support services in production, marketing, and post-harvest processing. Our analysis used the domestic resource cost approach. The average resource cost ratios for the Philippines were 0.44 for tiger shrimp, 0.66 for mud crab, and 0.35 for milkfish. If the peso overvaluation is corrected, the comparative advantage can be dramatically enhanced with respective resource cost ratios of 0.36 and 0.55, and 0.28. Given the current international market and production technologies for these commodities, competitive and comparative advantage can be sustained above the breakeven border price per kilogram of US$6–7 for tiger shrimp, US$5–6 for mud crab, and about US$1 for milkfish. The actual border prices per kilogram during the past five years have been higher at US$12.34 for tiger shrimp, US$8.39 for mud crab, and US$2.39 for milkfish. At current domestic costs and border prices of the these commodities, the advantage in exports may be sustained at yields per hectare greater than about 2 mt tiger shrimp, 100 kg mud crabs, and 500 kg milkfish. To enhance the efficiency of production of these commodities, the following areas of intervention are needed:
- Technology improvements in seed production from the hatchery of tiger shrimp, mud crab, and milkfish
- Research and technologies for diagnosis, prevention, and control of diseases of tiger shrimp (e.g. luminous bacteria)
- Training in farm management to enhance the skills of small-scale pond operators
- Public investments in infrastructures and support services including credit access to enhance efficient flow of goods and services from the farm to strategic market outlets
- Market development to ensure sustainable outlets for brackishwater pond production
- Reforms in trade and exchange rate policies to enhance global competitiveness
Ongoing research studies on maturation and spawning of milkfish, Chanos chanos at the brackishwater shrimp and milkfish culture applied research and training project, Jepara, Indonesia KH Alikunhi - In Proceedings of the International Milkfish Workshop Conference, May 19-22, 1976, Tigbauan, Iloilo, Philippines, 1976 - Aquaculture Department, Southeast Asian Fisheries Development CenterThe paper gives an account of the research work carried out at Jepara, Indonesia, on induction of maturity of milkfish in ponds and enclosures, and procurement of the spawners from the wild for seed production by hypophysation. Seven to eight years old pond grown milkfish were found sexually immature. Experiments are being conducted for growing and inducing maturity in 1-2 years old milkfish in fertilized ponds with regular tidal flow of water and also under regular hypophysation program. Milkfish spawners collected from sea had a few males in oozing condition and females mostly spent.