Evaluation of weaning strategies for intensively reared Australian fish, Murray cod, Maccullochella peelii peelii

Ryan, Stephen, Smith, Blair, Collins, Robert and Turchini, Giovanni 2007, Evaluation of weaning strategies for intensively reared Australian fish, Murray cod, Maccullochella peelii peelii, Journal of the world aquaculture society, vol. 38, no. 4, pp. 527-535.

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Title Evaluation of weaning strategies for intensively reared Australian fish, Murray cod, Maccullochella peelii peelii
Author(s) Ryan, Stephen
Smith, Blair
Collins, Robert
Turchini, Giovanni
Journal name Journal of the world aquaculture society
Volume number 38
Issue number 4
Start page 527
End page 535
Publisher The society
Place of publication Baton Rouge, La.
Publication date 2007-12
ISSN 0893-8849
Summary The Australian Murray cod supports a growing national industry. However, with regard to the process of weaning fry, there is a lack of information and optimal procedures need to be developed. The aim of the present investigation was to test the biological and economic efficacy of different weaning strategies for Murray cod. Three weaning strategies were tested on triplicate groups of fish: (1) only Artemia for 5 d, 7 d on Artemia plus starter diet, and 14 d on dry diet only; (2) 12 d on Artemia plus starter diet and 14 d on dry diet only; and (3) directly to dry diet for the entire experimental period. No significant differences were recorded in the growth and feed efficiency, while significantly higher mortality (38.4 ± 0.35%) was recorded in fish weaned directly onto dry diet. Fish subjected to the first 5 d on Artemia only showed a growth reduction during this period, which was compensated by a phase of enhanced growth during the dry-diet phase. No significant differences were noted in the proximate composition of fish under the different treatments. The economic evaluation suggested that the treatment with the simultaneous supply of Artemia and starter diet is preferable.
Notes Published Online: 19 Nov 2007
Language eng
Field of Research 070401 Aquaculture
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©World Aquaculture Society, 2007
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007301

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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