Deakin University
Browse

File(s) not publicly available

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

journal contribution
posted on 2007-12-01, 00:00 authored by S Ryan, B Smith, Bob Collins, Giovanni Turchini
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.

History

Journal

Journal of the world aquaculture society

Volume

38

Issue

4

Pagination

527 - 535

Publisher

The society

Location

Baton Rouge, La.

ISSN

0893-8849

Language

eng

Notes

Published Online: 19 Nov 2007

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2007, Wiley

Usage metrics

    Research Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC