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Application of stable isotope analysis to evaluate the assimilation of protein sources in juvenile slipper lobsters (Thenus australiensis)

Wirtz, A, Mazumder, D, Carter, CG ORCID: 0000-0001-5210-1282, Codabaccus, MB ORCID: 0000-0001-5108-373X, Fitzgibbon, QP ORCID: 0000-0002-1104-3052 and Smith, GG ORCID: 0000-0002-8677-1230 2022 , 'Application of stable isotope analysis to evaluate the assimilation of protein sources in juvenile slipper lobsters (Thenus australiensis)' , Aquaculture, vol. 560 , pp. 1-11 , doi: 10.1016/j.aquaculture.2022.738570.

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Abstract

Stable carbon and nitrogen isotope analyses were used to evaluate the contribution of five protein sources to the growth of juvenile slipper lobster Thenus australiensis. Protein sources tested were fish meal, krill meal, lupin meal, soybean meal and a squid by-product meal. A commercial in confidence basal mix was utilised to produce five experimental feeds containing 30% of each protein source. Juvenile lobsters were fed daily at 5% of their body weight for 12 weeks. Lobster performance was assessed by survival, feed intake and growth performance, and the effects of protein source on nutrient assimilation and discrimination factor were determined. The squid by-product meal, soybean meal, and krill meal produced better growth performance and survival. The specific growth rate on lupin meal was significantly (p p

Item Type: Article
Authors/Creators:Wirtz, A and Mazumder, D and Carter, CG and Codabaccus, MB and Fitzgibbon, QP and Smith, GG
Keywords: protein sources, stable isotope analysis, growth performance, assimilation proportion, discrimination factor
Journal or Publication Title: Aquaculture
Publisher: Elsevier Science Bv
ISSN: 0044-8486
DOI / ID Number: 10.1016/j.aquaculture.2022.738570
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© 2022 Elsevier B.V. All rights reserved.

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