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Réduire les impacts environnementaux des aliments pour les animaux d’élevage

Abstract : Animal feeding accounts for 30 to 95 % of environmental impacts of animal products when leaving the farm. Data have been published so far but no data were available for the French context. The ECOALIM project produced a database on the environmental impacts of feed ingredients used for animal nutrition in France (154 feed ingredients). A methodology for multiobjective feed formulation has been developed to produce ecofeeds with reduced impacts and cost control. Feed impacts were modified by − 6 to − 14 % in growing pig production and by + 4 % to – 18 % in broiler production depending on the impact considered and relative to the lowest cost formulation and current availability of feed ingredients. Simultaneously, feed price was increased by 1 % on average in pig production and 3 % in broiler production. With restricted 2-phase feeding, the impacts of the kilogram of growing pig when leaving the farms were reduced by − 2 to – 10 %. With 3-phase feeding, the impacts of the kilogram of broiler when leaving the farm were reduced by − 2 to − 14 % (except for land occupation which was increased by + 3 %). At the regional scale, the reduction of feed impact did not exceed – 10 % due to competition for low impact feed ingredients between livestock supply chain.
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Aurélie Wilfart, Léonie Dusart, Bertrand Méda, Armelle Gac, Sandrine Espagnol, et al.. Réduire les impacts environnementaux des aliments pour les animaux d’élevage. INRA Productions Animales, Paris: INRA, 2018, 31 (3), pp.289-306. ⟨10.20870/productions-animales.2018.31.2.2285⟩. ⟨hal-02623516⟩



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