Aquaculture in Asia

CIRAD (a French scientific organisation specialising in agricultural research for development for the tropics and subtropics) is involved in a number of aquacultural projects in Asia, assisting with problems encountered with catfish and tilapia farming.
The successful artificial propagation of two catfish species has revolutionised Vietnam&#8 CIRAD (a French scientific organisation specialising in agricultural research for development for the tropics and subtropics) is involved in a number of aquacultural projects in Asia, assisting with problems encountered with catfish and tilapia farming.
The successful artificial propagation of two catfish species has revolutionised Vietnam’s Mekong aquaculture: Fry rearing is efficient, fish rearing cages are proliferating and fresh-fish processing units are increasing.
Vietnamese producers are now seeking to capture new external markets, especially in the United States, but this means meeting restrictive quality and traceability standards.
CIRAD’s team is collaborating closely with Vietnamese aquaculturists to help them address this challenge. A sanitary assessment was undertaken in 2001. The analyses focused on causes of mortality in rearing cages, risk factors and losses due to flesh deterioration during processing.
The efficiency of pharmaceutical treatments carried out in the cages was also evaluated.
In the Philippines, a tilapia-breeding project is being carried out in collaboration with the Philippine Bureau of Fisheries and Aquatic Resources with the aim of obtaining a hybrid that could be bred in salt water. Initial tests revealed that one tilapia hybrid had higher tolerances of salinity than the freshwater parent species.
CIRAD is conducting research in the Pampanga region, where freshwater and brackish water fish dams are both present, to determine key factors that need to be focused on in order to succeed with this innovation.
CIRAD: Tel +33-1-5370-2000; fax +33-1-4755-1530; www.cirad.fr