Demand feeding and welfare in farmed fish |
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Authors: | Attia Joël Millot Sandie Di-Poï Carole Bégout Marie-Laure Noble Chris Sanchez-Vazquez F Javier Terova Genciana Saroglia Marco Damsgård Børge |
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Institution: | ENES, CNPS, UMR CNRS 8195, University of Saint-Etienne, Saint-Etienne, France. attia@univ-st-etienne.fr |
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Abstract: | Following the development of demand-feeding systems, many experiments have been conducted to explore feeding motivation and
feed intake in farmed fish. This work aims to review a selection of studies in the field, focusing on three key factors, related
to demand feeding and fish welfare. Firstly, we outline how demand feeders should be considered when developing feed management
strategies for improving welfare in production conditions. Secondly, via laboratory demand-feeding experiments, we show self-feeding
activities depend not only on feeding motivation and social organisation, but also on individual learning capacity and risk-taking
behaviour. Thirdly, we report encouraging results demonstrating that when presented with two or more self-feeders containing
complementary foods, fish select a diet according to their specific nutritional requirements, suggesting that demand feeders
could be used to improve welfare by allowing fish to meet their nutritional needs. |
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