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

Litaay, Magdalena, De Silva, Sena and Gunasekera, Rasanthi 2001, Changes in the amino acid profiles during embryonic development of the blacklip abalone (Haliotis Rubra), Aquatic living resources, vol. 14, no. 5, pp. 335-342, doi: 10.1016/S0990-7440(01)01133-0.

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Title Changes in the amino acid profiles during embryonic development of the blacklip abalone (Haliotis Rubra)
Formatted title Changes in the amino acid profiles during embryonic development of the blacklip abalone (Haliotis Rubra)
Author(s) Litaay, Magdalena
De Silva, SenaORCID iD for De Silva, Sena orcid.org/0000-0001-9381-2136
Gunasekera, Rasanthi
Journal name Aquatic living resources
Volume number 14
Issue number 5
Start page 335
End page 342
Publisher EDP Sciences
Place of publication Paris, France
Publication date 2001-09
ISSN 0990-7440
1765-2952
Keyword(s) amino acids
eggs
embryonic development
blacklip abalone
Haliotis rubra
larvae
Summary 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 (Haliotis rubra) 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–1 and accounted for 11.5 ± 8.3 % of the TAA. Free essential amino acid (FEAA) content increased significantly as development progressed (P < 0.05), in which threonine, arginine and lysine accounted for over 63 % of this pool. In all developmental stages, the FAA pool was dominated by the non-essential amino acids taurine + proline which accounted for 79.5 % of the total. Generally, the FAA accounted for between 10 to 15 % of the TAA in the different developmental stages of blacklip abalone. All evidence appears to indicate that in blacklip abalone the energy requirements during early ontogeny are mostly met with from the lipid reserves, and that there is a tendency to conserve amino acids until pre-settlement.
Language eng
DOI 10.1016/S0990-7440(01)01133-0
Field of Research 070401 Aquaculture
Socio Economic Objective 970107 Expanding Knowledge in the Agricultural and Veterinary Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2001, EDP Sciences
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30001346

Document type: Journal Article
Collections: School of Ecology and Environment
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