Dietary Indispensable Amino Acid Concentrarionsbased based on Amino Acid Profiles of Broodstock, Eggs and Larvae in Yellow fin Seabream, Acanthopagrus latus

A study was undertaken to establish the optimum dietary indispensable amino acid (IAA) pro?le for yellow fin seabream broodstock based on the amino acid (AA) profile of broodstock, eggs and larvae of Acanthopagrus latus. Three isonitrogenous (40%) and isolipid (20%), named diets 1, 2 and 3 were formulated with different ratios of total essential amino acids per total non-essential amino acid (TEAA/TNEAA) (0.611, 0.720 or 0.822, respectively) for 138 days. Amino acid profiles of carcass, eggs, hatchling and 3 days post-hatching larvae were affected by the corresponding dietary treatments. In general, added concentration of IAA resulted in added contents of crude protein, total EAA and TEAA/TNEAA ratio of eggs and larvae. Optimal balance and increase in concentration of EAA in diet influenced biochemical composition of yellow fin seabream. Results indicated the indispensable amino acid profile in broodstock diet had a considerable effect on the quality of amino acid profile of eggs and larvae in A. latus.