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Compensatory growth of Sobaity (Sparidentex hasta) and yellowfin seabreams (Acanthopagrus latus) relative to feeding rate during nursery phase

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This document contains embargoed files until 2021-12-03T

Author
Torfi Mozanzadeh, Mansour
Zabayeh Najafabadi, Mojtaba
Torfi, Mohammad
Safari, Omid
Oosooli, Rahim
Mehrjooyan, Shapour
Pagheh, Esmaeil
Javad Hoseini, Seyed
Saghavi, Hamid
Monem, Javad
Gisbert, Enric
Date
2020-12-03
URI http://hdl.handle.net/20.500.12327/1032
DOI
https://doi.org/10.1111/anu.13199
ISSN
1353-5773
Abstract
A 60‐day study was conducted to investigate the compensatory growth (CG) responses of sobaity (Sparidentex hasta) and yellowfin (Acanthopagrus latus) seabreams to restricted feeding ration and normal feeding ration phases during the nursery period. Fry stage of S. hasta and A. latus with initial weight (BWi) of 1 and 0.8 g, respectively, were fed a commercial diet at five ration levels (RL) including 2%, 4%, 6%, 8% and 10% of their BWi over a period of 30 days (restricted‐ration phase) and then re‐fed up to visual satiation for another 30 days (normal‐ration period). According to the second‐degree polynomial relationship between specific growth rate and RL, the maintenance, optimum and maximum feeding rates for SGR in S. hasta were estimated to be 0.5%, 3.5% and 8.2%; meanwhile in A. latus, they were 0.3%, 4% and 8%, respectively. At the end of the normal‐ration phase, final body weight (BWf) of S. hasta fed at 10% RL was higher than the other treatments. In addition, A. latus fed at 6% and 8% RL showed full CG regarding BWf compared with fish fed at 10% RL. The findings of this study confirmed partial CG in S. hasta and full CG in A. latus after re‐feeding period.
Document Type
Article
Document version
Accepted version
Language
English
Subject (CDU)
637 - Productes dels animals domèstics, de la caça i de la pesca
Pages
25
Publisher
Wiley
Is part of
Aquaculture Nutrition
Citation
Torfi Mozanzadeh, Mansour, Mojtaba Zabayeh Najafabadi, Mohammad Torfi, Omid Safari, Rahim Oosooli, Shapour Mehrjooyan, and Esmaeil Pagheh et al. 2020. "Compensatory Growth Of Sobaity ( Sparidentex Hasta ) And Yellowfin Seabreams ( Acanthopagrus Latus ) Relative To Feeding Rate During Nursery Phase". Aquaculture Nutrition. doi:10.1111/anu.13199.
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