NED (Nutrition et Ecosystèmes Digestifs)
Nutrition and digestive ecosystems
The aim The NED team (Nutrition and Digestive Ecosystems) is focused on symbiotic microbiota that colonizes the digestive tract, with the goal of an optimization of ecosystem services for the host. Two complementary research directions will be investigated: 1) reduce the use of veterinary drugs through improving digestive health; 2) improve digestive efficiency. Leverage to achieve ecological engineering of digestive ecosystem concerns mainly animal feeding, which is an effective and easy mean to pilot ecosystems for farmers. Three complementary approaches are developed by the team: (i) early orientation of the microbiota in the young animals, (ii) modulation of the microbiota in adult animals and (iii) work on its interaction with its host. Animal models used by NED are two monogastrics species, pigs and rabbits, and two ruminant species, sheep and cows, which are especially studied on the ENVT site.
Zened A., A. Troegeler-Meynadier, M.C. Nicot, S. Combes, L. Cauquil, Y. Farizon, F. Enjalbert (2011) Starch and oil in the donor cow diet and starch in substrate differently affect the in vitro ruminal biohydrogenation of linoleic and linolenic acids. Journal of Dairy Science. 94 : 5634–5645.
Zened A., S. Combes, L. Cauquil, J. Mariette, C. Klopp, O. Bouchez, A. Troegeler-Meynadier, F. Enjalbert (2013) Microbial ecology of the rumen evaluated by 454 GS FLX pyrosequencing is affected by starch and oil supplementationof diets. FEMS Microbiology Ecology. 83 : 504-514.
Kaleem M., Y. Farizon, F. Enjalbert, A. Troegeler-Meynadier (2013) Lipid oxidation products of heated soybeans as a possible cause of protection from ruminal biohydrogenation. European Journal of Lipid Science and Technology. 115 : 161-169.
Kaleem M., F. Enjalbert, Y. Farizon, A. Troegeler-Meynadier (2013) Effect of chemical form, heating and oxidation products of linoleic acid on rumen bacterial population and activities of biohydrogenating enzymes. Journal of Dairy Science. 96 : 7167-7180.
Rey M., F. Enjalbert, S. Combes, L. Cauquil, O. Bouchez, V. Monteils (2014) Establishment of ruminal bacterial community in dairy calves from birth to weaning is sequential. Journal of Applied Microbiology, 116 : 245-257.
Convenor Sylvie Combes
Scientists : C. Bayourthe (PR, ENSAT), F. Enjalbert (PR, ENVT), D. Lekhal (PR, EI Purpan), A. Meynadier (MC, ENVT), O. Zemb (CR, INRA), A. Zened (MC, EI Purpan)
Engineers and technical staff: L. Cauquil (AI, INRA), M-L. Chemit (TR, ENVT), S. Combes (IR, INRA), Y. Farizon (IE, ENVT), B. Gabinaud (TR, INRA), G. Pascal (IR, INRA), M. Segura (AI, INRA), J-P. Vergnes (AGT, ENVT)