Supplementations of poultry by-product meal and selenium yeast increase fish meal replacement by soybean meal in golden pompano (Trachinotus ovatus) diet

Yan Wang, XuZ Ma, Fei Wang, Yubo Wu, Jianguang Qin, Peng Li

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    The effects of poultry by-product meal (PBM) and selenium yeast (Se-yeast) supplementations on fish meal replacement by soybean meal (SBM) in the diet of golden pompano (Trachinotus ovatus) were examined. In trial I, a 2 × 3 layout including two PBM levels (100 and 170 g kg −1 ) and three levels of fish meal replacement (0, 40 or 60%) was used. At 100 g kg −1 PBM, fish fed the basal diet exhibited the highest weight gain (WG) and nitrogen retention efficiency (NRE) and the lowest feed conversion ratio (FCR). At 170 g kg −1 PBM, no significant differences were found in WG and NRE between fish fed the basal diet and diet with 40% of fish meal replaced by SBM. In trial II, the basal diet containing 170 g kg −1 PBM (trial I) served as a reference. A 2 × 2 layout included two levels of fish meal replacement (40 or 60%) and two levels of Se-yeast addition (0 and 1 g kg −1 ). No significant differences were found in WG, feed intake, FCR and NRE between fish fed the reference diet and diet with 40 or 60% fish meal replacement plus 1 g kg −1 Se-yeast addition. This study indicates that supplementations of PBM and Se-yeast can enhance the level of fish meal replacement by SBM in golden pompano diet. Dietary fish meal level can be reduced to 140 g kg −1 by optimizing inclusion of SBM, PBM and Se-yeast.

    Original languageEnglish
    Pages (from-to)1904-1914
    Number of pages11
    JournalAquaculture Research
    Volume48
    Issue number4
    Early online date2016
    DOIs
    Publication statusPublished - 1 Apr 2017

    Keywords

    • antinutritional factor
    • fish meal
    • nitrogen retention efficiency
    • selenium
    • soybean meal
    • weight gain

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