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Master Thesis

Modélisation de situations autonomes en élevage bovin lait biologique dans le Grand Ouest

Abstract : In organic livestock farming, food self-sufficiency ensures the competitiveness and secures the farms from the foodstuffs global price variation. The level of self-sufficiency is high in dairy cattle farming from the Great West of France, at 90% on average. However, there are disparities between farms, mostly concerning the self-sufficiency in concentrates, which is more difficult to achieve. In a context of climate changes, with increasing climatic variations, self-sufficiency enables organic farming to be less vulnerable. Modeling test cases in dairy cattle farming gives technical and economic references of self-sufficient systems, livable, economically efficient and reproducible. They can help the farming advisors and farmers to convert to organic farming or to turn into a more self-sufficient system for example. Two simulations have been tested on those test cases: a reduced yield simulation; and a reduction of till. Self-sufficiency allows organic farming to resist effectively to climatic changes only if the produced resource is adapted to the production. Permanent grassland permits to achieve more easily this balance, thanks to a more constant, known and less fragile resource than others.
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Master Thesis
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Submitted on : Monday, March 5, 2018 - 1:40:28 PM
Last modification on : Monday, July 6, 2020 - 3:38:22 PM
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  • HAL Id : dumas-01633854, version 1



Morgane Coty. Modélisation de situations autonomes en élevage bovin lait biologique dans le Grand Ouest. Sciences agricoles. 2017. ⟨dumas-01633854⟩



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