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Formuler des aliments à moindres impacts environnementaux sans affecter les performances de croissance des porcs à l’engraissement

Abstract : Animal feeding contributes greatly to environmental impacts (EI) of pig production. Including EI of feed ingredients as a constraint when formulating diets has thus been proposed as a way to reduce these impacts. However, this approach might impair pig performance and improvement obtained at the feed level. The objective of this study was to test the ability of innovative formulation methods to reduce EI of pig fattening without any detrimental effects on growth performance. We compared three formulation approaches: least-cost formulation (control diet) in accordance with commercial practices; multi-objective (MO) formulation (ecodiet) considering feed cost and EI calculated by life cycle assessment (LCA), and MO formulation using feed ingredients produced locally (local diet) to reduce EI of feed transport. Ninety-six pigs were distributed among three experimental groups (control diet, ecodiet and local diet), with each pig individually measured for live weight and feed intake using an automatic feeding stall. At the animal level, the three diets did not differ in growth performance or carcass characteristics. At the feed level, compared to the control, the ecodiet reduced climate change (CC) by 29.5%, energy demand (ED) by 14.4% and land occupation (LO) by 2.7%, on average. The local diet reduced CC by 22.5% and ED by 19.3%, but increased LO by 18.5%. Consequently, effects of dietary treatments on EI at the farm gate were similar to those at the feed level. It was concluded that multiobjective diet formulation is an effective way to reduce most EI of pig production without impairing animal performance.
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https://hal.inrae.fr/hal-03167785
Contributor : Ludovic Brossard <>
Submitted on : Friday, March 12, 2021 - 1:53:10 PM
Last modification on : Friday, June 4, 2021 - 2:37:25 PM

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  • HAL Id : hal-03167785, version 1

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Francine de Quelen, Ludovic Brossard, Aurélie Wilfart, Jean-Yves Dourmad, Florence Garcia-Launay. Formuler des aliments à moindres impacts environnementaux sans affecter les performances de croissance des porcs à l’engraissement. 53. Journées de la Recherche Porcine, Ifip; Inrae, Feb 2021, En ligne, France. ⟨hal-03167785⟩

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