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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Evaluer l’intérêt technique et économique de l’utilisation de graines de lin extrudées en élevage bovin laitier

Le lin en élevage bovin laitier
L’objectif général de la thèse est de produire des connaissances sur l’intérêt technique et économique d’une utilisation de la graine de lin extrudée (GLE) en exploitations bovines laitières en France.

Le projet comporte deux objectifs de recherche :

  1. L’évaluation de l’impact de l’utilisation de la Graine de Lin Extrudée (GLE) sur les performances laitières, les performances de reproduction et la santé des vaches laitières,
  2. L’évaluation du rapport coût-bénéfice de différentes stratégies d’apport de la GLE dans différents contextes d’élevage en France.

La démarche de thèse mobilise trois méthodologies :

  1. Une méta-analyse d’essais expérimentaux afin de quantifier les effets de la GLE sur les performances de production et la composition en acides gras du lait, et évaluer leur variabilité en fonction de la dose de GLE et de la ration associée,
  2. Une étude épidémiologique exposés/non exposés pour quantifier les effets de la GLE sur les performances de production, les performances de reproduction, et la santé des vaches laitières en France,
  3. La réalisation des simulations à partir d’un simulateur de troupeau pour quantifier les effets de la GLE sur le bilan économique d’une exploitation bovine laitière dans différents contextes de production.

Partenaires :

  • L'Unité de Recherche sur les Systèmes d’Elevage (URSE), Ecole Supérieure d’Agricultures (ESA) 
  • Valorex 
  • Terrena 

Résultats :