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Estimating individual feed intake of fish held in groups has long been a challenge precluding precise knowledge of the individual variation of feed efficiency (FE) in fish. In this study, counts of the number of feed pellets (1.63mg on average) eaten by individual tilapia (Oreochromis niloticus) held in 8 mixed sex groups of 15 fish were measured from video recordings made over a period of 10days...
Feed efficiency is an economically important trait in aquaculture, which can be measured traditionally as feed conversion ratio (FCR). Because of the difficult measurement, genome-wide selection using quantitative trait loci (QTLs) affecting FCR may be an alternative for genetic improvement. In the present investigation, QTLs for FCR based on two mapping panels (mirror carp and hybrid carp panels)...
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