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    Development of formulated feeds for grow-out culture of grouper (Epinephelus coioides) - tank and field studies

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    Date
    2004
    Author
    Millamena, Oseni M.
    Toledo, Joebert D.
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    Abstract
    The objectives of this study were to compare the performance of a Southeast Asian Fisheries Development Centre (SEAFDEC) formulated diet with a commercial feed for growout culture of grouper and to transfer technology on grouper diet developed at SEAFDEC to the industry. In the tank study, Epinephelus coioides juveniles were reared in 12 units of 150-litre tanks at 15 fish/tank with 4 replicates per treatment. Fish were fed the diets at a feeding rate of 5-6% of body weight (BW) and trash fish at 10-12% BW per day for 60 days. In the feeding trial, treatments were arranged in a randomized complete block design with size groups as block. 36 fish were stocked per size group. Formulated feeds were given twice a day for 120 days. In the tank study, the commercial feed resulted to significantly lower growth, survival and food conversion ratio (FCR) compared with the SEAFDEC diet and trash fish control. Results of the field trials at growout ponds did not show significant differences in growth performance, survival and FCR of grouper juveniles fed with the diets. Both the SEAFDEC diet and commercial feed conformed to the established protein requirement of juvenile grouper. In tank trials, the poor performance of commercial feed was attributed to the low protein content and deficiencies in essential amino acids as confirmed by analysis of the amino acid composition. Improvement in growth performance of fish given the commercial feed was achieved in field trials by increasing the dietary protein level and improving the amino acid composition to match that of the grouper juveniles.
    URI
    http://hdl.handle.net/10862/2416
    Suggested Citation
    Millamena, O. M., & Toledo, J. D. (2004). Development of formulated feeds for grow-out culture of grouper (Epinephelus coioides) - tank and field studies. In M. A. Rimmer, S. McBride, & K. C. Williams (Eds.), Advances in grouper aquaculture (pp. 115–118). Canberra: Australian Centre for International Agricultural Research.
    Type
    Book chapter
    ISBN
    9781863204385
    Subject
    Proteins; Diets; Amino acids; Feed efficiency; Feed; Feeding experiments; Growth rate; Nutritional requirements; Survival; Fish culture; Groupers; Epinephelus coioides
    Series
    ACIAR Monograph 110
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    • Book Chapters [85]


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