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Master Thesis

Comment optimiser la séquence alimentaire des porcs en croissance et engraissement sur des critères économiques et environnementaux ?

Abstract : Pig production has to meet both economic and environmental challenge. The competitiveness of farming depends largely on the cost of raw material and technical performance. In parallel, the reduction of environmental impacts has become a major issue in recent decades. These impacts can be reduced, including through adequate feeding strategies. To address these issues, an optimization of the feed sequence on economic and environmental criteria in growing-fattening model was developed. It optimizes the number of feeds, the coverage rate of amino acid requirements and associated formulas from available raw materials. The objective function includes the gross margin of the workshop and the impact of production on climate change, based on Life Cycle Analysis (LCA). The program integrates the evolution of amino acid requirements and the effect of their coverage rate on feed efficiency and the fattening period, through simulations with InraPorc. The model highlightsthe interest of good practice in formulation such as the incorporation of crystalline AA or the use of alarge number of feeds but only if the number of feeds is high enough (> 7 foods). The model also shows the advantage of taking into account the emission of greenhouse gases in the choice of raw materials reducing the impact of 5% per kg of pork. This model will ultimately contribute to a tool for decision support.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01092311
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Submitted on : Monday, December 8, 2014 - 3:13:08 PM
Last modification on : Friday, October 23, 2020 - 4:45:38 PM
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Thomas Plantevin. Comment optimiser la séquence alimentaire des porcs en croissance et engraissement sur des critères économiques et environnementaux ?. Sciences agricoles. 2014. ⟨dumas-01092311⟩

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