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    Duration of feeding and indirect selection for growth of tilapia

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    Date
    1986
    Author
    Villegas, Cesar T.
    Doyle, Roger W.
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    1,559
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    Abstract
    Duration of spontaneous feeding was observed at three times each day in a laboratory population of nine juvenile tilapia (Oreochromis mossambicus). Growth of the fish was measured as change in length and weight, and also as uptake of 14C-labelled glycine by isolated scales. Duration of the first morning feeding was highly correlated with all measures of growth and was independent of initial size. Later feedings were not correlated with growth. Selection on feeding duration could be used to select indirectly for growth rate; this might be a valuable procedure where individuals in the population are not exactly the same age (i.e., where size-at-age is an inaccurate measure of growth).
    Description
    Contribution No. 155 of the SEAFDEC Aquaculture Department.
    URI
    http://hdl.handle.net/10862/1202
    Suggested Citation
    Villegas, C. T., & Doyle, R. W. (1986). Duration of feeding and indirect selection for growth of tilapia. Aquaculture, 57(1-4), 89-92.
    DOI
    10.1016/0044-8486(86)90184-5
    Type
    Article
    ISSN
    0044-8486
    Subject
    Oreochromis mossambicus; Feeding; Growth; Selective breeding; Feed efficiency; Time series analysis
    Collections
    • Journal Articles [1100]


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