OPTIMAL DIETARY LEVELS OF LECITHIN AND CHOLESTEROL FOR BLACK TIGER PRAWN PENAEUS MONODON LARVAE AND POSTLARVAE

C. Paibulkichakul, S. Piyatiratitivorakul, P. Kittakoop, V. Viyakarn, A.W. Fast, P. Menasveta-1998

Aquaculture, 167 (3-4) : 273-281 (Current Contents)

Abstract:

The effect of lecithin and cholesterol on growth and survival of larval and postlarval Penaeus monodon was evaluated using semi-purified diets containing four levels of lecithin (0.0, 0.5, 1.0 and 1.5%) and three levels of cholesterol (0.0, 0.5 and 1.0%). Three early stages (zoeal, mysid and postlarval) of P. monodon were fed the experimental diets. Growth and survival of shrimp fed diets containing 1.0 and 1.5% lecithin were not significantly different (P > 0.05) but these groups had significantly greater growth and survival than those fed 0.0 and 0.5% lecithin diets. Shrimp fed diets containing 1.0% cholesterol had significantly greater (P < 0.05) growth and survival than that of shrimp fed diets containing 0.0 and 0.5% cholesterol. There was no interaction between lecithin and cholesterol on growth and survival of P. monodon. During a low salinity stress test, PL-15 shrimp fed diets containing 1.0% cholesterol had significantly greater (P < 0.05) tolerance to low salinity exposure.

(Chulalongkorn Univ., Fac. Sci., Dept. Marine Sci., Bangkok 10330, Thailand)

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