Optimized feeding strategies in the larviculture of the Asian seabass Lates calcarifer.
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This 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 .
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Piedad-Pascual, Felicitas (Philippine Council for Aquatic and Marine Research and Development, 1989)Knowledge on nutritional requirements of prawn juveniles and broodstock are scanty. However, relatively more information is now available with regard to requirements of juveniles compared to that of broodstock. Many ...
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