Seed production of giant freshwater prawn (Macrobrachium rosenbergii) in Mekong Delta, Vietnam.
Abstract Artificial seed reproduction of giant river prawn (Macrobrachium rosenbergii) has been studied in Vietnam since the early 1980s, especially since 1998. Most of this work has been done to obtain suitable broodstock sources, water sources, stocking densities, feed types and rearing scales for different rearing systems. These studies have contributed significantly to the development of prawn seed production technology for commercial practice in Vietnam, especially the Mekong Delta region, which had 91 hatcheries in 2003 compared to only 1 hatchery in 1999. The most popular production system is the modified static green water system, which is used by 88% of the hatcheries in the region. The total production of prawn seed in 2003 was 77.7 million post-larvae (PLs).