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Group feeding behavior of brown trout is a correlated response to selection for growth shaped by the environment Inra
Boujard, T.; Ramezi, J.; Vandeputte, M.; Labbé, L.; Mambrini, M..
Group feeding pattern is a response correlated to selection for growth in brown trout. Previous results suggest that the feeding pattern of two lines (NL and SY), selected with the same process at two different fishfarms, differ. This study addresses the following questions: (i) are the patterns differentially fixed by the selection process and if yes (ii) is this explained by the different genetic background of the lines? In a first experiment, we tested if the group feeding behavior can be inherited. We produced and reared under the same experimental conditions selected hybrids (NLS × SYS) and pure SY selected line (SYS). We compared their behavior on self-feeders when reared single or mixed (groups of 500 fish; mean initial BW = 6 g, 90-day period)....
Tipo: Journal Article Palavras-chave: FISH; FEEDING BEHAVIOR; FEEDING PATTERN; GROWTH; CORRELATED RESPONSE; ENVIRONMENT INTERACTION.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200842c9c347&uri=/notices/prodinra1/2010/11/
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