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Master Thesis

Amélioration des bilans environnementaux des porcs par la voie alimentaire

Abstract : Concentrated feed of the livestock production significantly contribute to the overall environmental impact of the animal sectors; however, formulation takes into account primarily only economic and nutritional constraints. This study allows us (1) to draw up an overview of the environmental impact of the whole-feed and complementary feed production for growing-finishing pigs in various geographical and economical contexts for five environmental impacts: climate change (CC), energy demand (CED), land use (SOL), eutrophication (E) and acidification (A), (2) to identify the contribution of transport to each of these impacts, (3) to identify potential decreases of each impacts without deterioration of the nutritional value of formulas and (4) to study the relationship between these impacts. The average impact of the production of whole-feed on CC, CED, SOL, E and A is 532 kg CO2 eq./T, 4817 MJ/T, 1311 m²/year/T, 4,10 kg PO43- eq./T and 3,54 kg SO2 eq./T of feed. The production of complementary feed causes lower impacts except for E. The transport contributes 20% of CED and less than 13% of CC, SOL, E and A. The impacts on CC and CED can be reduced by 5% and those on SOL, E and A by 20% on average. It was not possible to reduce all impacts at the same time. The results depend on the context of supply of raw materials for feed manufacturing plants. The optimization of the environmental impact of the production of feed must be done across the plant.
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Master Thesis
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Morgane Magnin. Amélioration des bilans environnementaux des porcs par la voie alimentaire. Sciences agricoles. 2013. ⟨dumas-00948662⟩

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