Selection for Adaptation to Dietary Shifts: Towards Sustainable Breeding of Carnivorous Fish

Type Article
Date 2012-09
Language English
Author(s) Le Boucher Richard1, 2, 3, Dupont-Nivet Mathilde1, Vandeputte Marc1, 2, 3, Kerneis Thierry4, Goardon Lionel4, Labbe Laurent4, Chatain Beatrice2, Bothaire Marie Josee5, Larroquet Laurence5, Medale Francoise5, Quillet Edwige1
Affiliation(s) 1 : INRA, GABI Genet Anim & Biol Integrat UMR1313, Jouy En Josas, France.
2 : IFREMER, Intrepid UMR110, Palavas Les Flots, France.
3 : AgroParisTech, GABI UMR1313, Paris, France.
4 : INRA, UE PEIMA 937, Sizun, France.
5 : INRA, NuMeA Nutr UMR1067, St Pee Sur Nivelle, France.
Source Plos One (1932-6203) (Public Library Science), 2012-09 , Vol. 7 , N. 9 , P. 1-7
DOI 10.1371/journal.pone.0044898
WOS© Times Cited 21
Abstract Genetic adaptation to dietary environments is a key process in the evolution of natural populations and is of great interest in animal breeding. In fish farming, the use of fish meal and fish oil has been widely challenged, leading to the rapidly increasing use of plant-based products in feed. However, high substitution rates impair fish health and growth in carnivorous species. We demonstrated that survival rate, mean body weight and biomass can be improved in rainbow trout (Oncorhynchus mykiss) after a single generation of selection for the ability to adapt to a totally plant-based diet (15.1%, 35.3% and 54.4%, respectively). Individual variability in the ability to adapt to major diet changes can be effectively used to promote fish welfare and a more sustainable aquaculture.
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Le Boucher Richard, Dupont-Nivet Mathilde, Vandeputte Marc, Kerneis Thierry, Goardon Lionel, Labbe Laurent, Chatain Beatrice, Bothaire Marie Josee, Larroquet Laurence, Medale Francoise, Quillet Edwige (2012). Selection for Adaptation to Dietary Shifts: Towards Sustainable Breeding of Carnivorous Fish. Plos One, 7(9), 1-7. Publisher's official version : , Open Access version :