Changes in the amino acid profiles during embryonic development of the blacklip abalone ()

Author: Litaay Magdalena   De Silva Sena S.   Gunasekera Rasanthi M.  

Publisher: Edp Sciences

E-ISSN: 1765-2952|14|5|335-342

ISSN: 0990-7440

Source: Aquatic Living Resources, Vol.14, Iss.5, 2001-09, pp. : 335-342

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Abstract

Changes in the total amino acid (TAA) and the free amino acid (FAA) contents during embryonic development, through newly spawned eggs, to pre-settled larvae of blacklip abalone () are described. The TAA (protein bound + free) and the FAA contents increased prior to hatching but decreased towards settlement, but the changes were not always significant between different stages of development. Threonine, arginine, lysine and leucine accounted for nearly 50 % of the total essential amino acids (TEAA) in all developmental stages. The mean FAA content of newly spawned eggs was 262.8 ± 28.2 pmol·ind and accounted for 11.5 ± 8.3 % of the TAA. Free essential amino acid (FEAA) content increased significantly as development progressed ( 

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