Browsing by Author "Dhert, Philippe."
Conference paperP Dhert, M Duray, P Lavens & P Sorgeloos - In R Hirano & I Hanyu (Eds.), The Second Asian Fisheries Forum. Proceedings of the Second Asian Fisheries Forum, 17-22 April 1989, Tokyo, Japan, 1990 - Asian Fisheries SocietyThis paper reports on the progress made at the Tigbauan hatchery of SEAFDEC in the Philippines, with the larviculture of the Asian seabass Lates calcarifer when using w3-HUFA enriched Brachionus and Artemia . In view of the high correlation between mouth size and total larval length, the feeding of different size classes of Artemia can be better programmed. The incorporation of the HUFA s 20:5w3 and 22:6w3 in the live prey Artemia , and possibly Brachionus , greatly improved larval ability to metamorphose, although it did not affect growth nor survival until day 21. However, when 21 day old fry were subjected to a stress test, much higher survival rates were obtained in HUFA-enriched seabass larvae, illustrating their superior physiological condition over fry cultured with non-enriched Brachionus and Artemia . These findings were used to propose an improved feeding strategy for the larviculture of Lates calcarifer .