|Title:||Anticipating the free amino acid concentrations in newly hatched pelagic fish larvae based on recently fertilized eggs and temperature||Authors:||Rayner, Thomas Allan
Hansen, Benni Winding
|Keywords:||YOLK-SAC LARVAE;COPEPOD ACARTIA-TONSA;ENERGY-METABOLISM;DEVELOPING EMBRYOS;SEA-BASS;FOOD;ENERGETICS;ARTEMIA;NUTRITION;SUBSTRATE||Issue Date:||Nov-2017||Publisher:||OXFORD UNIV PRESS||Journal Volume:||39||Journal Issue:||6||Start page/Pages:||1012-1019||Source:||J PLANKTON RES||Abstract:||
A survey on the loss of free amino acids (FAA) in aquaculture reared fish embryos and larvae was conducted. Twelve fish species from 14 studies were selected and a relationship between the rates of decay for total FAAs and temperature was observed. A Q(10) coefficient of 2.98 +/- 0.33 SD was estimated and applied as a correction factor in order to achieve a rate of decay of total FAAs common for all species. Based on the Q(10) adjusted rate of decay and the overall FAA pool in newly spawned eggs, predictions on the estimated time of FAA depletion and daily loss of FAAs after hatching were achieved. Variation between the species for different FAAs was low, and the most outstanding essential FAAs were leucine, lysine, valine and isoleucine while alanine and serine dominated non-essential FAAs. Overall, leucine could be regarded as the most important among all species due to its common occurrence in newly spawned eggs and fast rate of decay. Based on the functions considered in the present study, it is possible to anticipate the availability of FAA diet needed in the form of live feed for pelagic first feeding marine fish larvae in aquaculture at different temperatures.
|Appears in Collections:||海洋生物研究所|
03 GOOD HEALTH AND WELL-BEING
14 LIFE BELOW WATER
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.