Daniel Ouellet, Ph.D.

Research scientist

Our team is working on the protein metabolism of dairy cows including urea and endogenous secretions to accurately estimate nitrogen recycling and animal needs to reduce nitrogen loss to the environment increase the profitability of dairy farms.

Key publications

  1. Nadeau, F., Charbonneau, E., Hasnaoui, M., Lapierre, H, and D. R. Ouellet. Substitution of soybean meal by canola meal in dairy rations on fluid-associated and particle-associated bacteria at the duodenum. J. Dairy Sci. 106, Suppl. 1.

    2023 - View publication details

  2. Poulin, A-A., Hassanat, F., Tremblay, G., Ouellet, D., Petri, R., Thériault, M., Claessens, A., Bertrand, A. et Charbonneau, É. 2022. Variation of the alfalfa energy-to-protein ratio to maximize nitrogen use efficiency by rumen microbes. ADSA Annual Meeting, June 25-28, 2023, Ottawa, ON, Canada [poster] and J. Dairy Sci. 106(Suppl. 1): 1133M. [Abstract]

    2023 - View publication details

  3. Impact d’une réduction en protéines métabolisables de la ration sur le statut immunitaire et métabolique des vaches laitières pendant la période de transition. Tapp G.*, Beaudoin F., Ouellet D., Malouin F., Lacasse P., Ster C. 2023. Journée d’information scientifique sur les bovins laitiers et les plantes fourragères, Centre de référence en agriculture et agroalimentaire du Québec. Drummondville, 8 Février, 2023

    2023 - View publication details

  4. Poulin, A-A., Hassanat, F., Tremblay, G., Ouellet, D., Petri, R., Thériault, M., Claessens, A., Bertrand, A. et Charbonneau, É. 2023. L’efficacité d’utilisation de l’azote par les microbes du rumen est affectée par le ratio énergie/protéines de la luzerne. Journée d'information scientifique sur les bovins laitiers et les plantes fourragères. 8 février 2023, Drummondville, QC. CRAAQ [affiche]

    2023 - View publication details

  5. Poulin, A-A., Hassanat, F., Tremblay, G., Ouellet, D., Petri, R., Thériault, M., Claessens, A., Bertrand, A. et Charbonneau, É. 2022.Variation du ratio énergie/protéines de la luzerne pour maximiser l’efficacité de l’utilisation de l’azote par les microbes du rumen. Symposium sur les bovins laitiers, 2 novembre 2022, Drummondville, QC. CRAAQ.

    2022 - View publication details

  6. Ruiz-González, A., Y. H. Leung, A. Celimin, A. Kenez, P. Y. Chouinard, R. Gervais, D. R. Ouellet, H. Lapierre, and D. E. Rico. 2022. Whole-body protein and glucose metabolism in cows fed diets with varying amino acid supply under heat stress. J. Dairy Sci. 105, Suppl. 1, Page 93.

    2022 - View publication details

  7. J. Dairy Sci. Vol. 105, Suppl. 1, Page 395. (abs. 2435V).

    2022 - View publication details

  8. Ruiz-González, A., A. Celimin, Y. H. Leung, , A. Kenez, P. Y. Chouinard, H. Lapierre, D. R. Ouellet, R. Gervais, and D. E. Rico. 2022. Milk fatty acids as markers of heat stress in cows fed diets with varying protein composition. Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science. ed. / EAAP scientific committee. Wageningen Academic Publishers, 2021. p. 133 (Book of abstracts; No. 27).

    2021 - View publication details

  9. Hassanat, F., C. Benchaar., K. A. Beauchemin, H. Lapierre, D. R. Ouellet, and C. Côrtes. 2021. Effect of dietary metabolizable protein level on enteric methane production and milk production of Holstein and Ayrshire dairy cows. J. Dairy Sci. Vol. 104, Suppl. 1, 308 (Abstr.).

    2021 - View publication details

  10. Benchaar C., F. Hassanat, K. A. Beauchemin, H. Lapierre, D. R. Ouellet, and C. Côrtes. 2021. Effect of dietary metabolizable protein level on digestion and ruminal fermentation of Holstein and Ayrshire dairy cows. J. Dairy Sci. Vol. 104, Suppl. 1, 303.

    2021 - View publication details

  11. Symposium sur les bovins laitiers Drummondville 2019/10/29 - 2019/10/29

    2019 - View publication details

  12. Amino acid digestibility of canola meal estimated with pulse-dose in dairy cows or in roosters.

    2019 - View publication details

  13. Martineau, R., Ouellet, D.R., Lapierre, H. (2019). Does blending canola meal with other protein sources improve production responses in lactating dairy cows? A multilevel mixed-effects meta-analysis. Journal of Dairy Science (JDS), [online] 102(6), 5066-5078. http://dx.doi.org/10.3168/jds.2018-15925

    2019 - View publication details

  14. Inclure du tourteau de canola dans les rations des vaches laitières: pourquoi pas? Ouellet, D.R., R. Martineau, D. Pellerin et H. Lapierre. 6 pages. Journée d'information scientifique sur les bovins laitiers et les plantes fourragères. CRAAQ, 26 février 2019.

    2019 - View publication details

  15. Martineau, R., Ouellet, D.R., Patton, R.A., White, R.R., Lapierre, H. (2019). Plasma essential amino acid concentrations in response to casein infusion or ration change in dairy cows: A multilevel, mixed-effects meta-analysis. Journal of Dairy Science (JDS), [online] 102(2), 1312-1329. http://dx.doi.org/10.3168/jds.2018-15218

    2019 - View publication details

  16. Lapierre, H., Binggeli, S., Sok, M., Pellerin, D., Ouellet, D.R. (2019). Estimation of correction factors to determine the true amino acid concentration of protein after a 24-hour hydrolysis. Journal of Dairy Science (JDS), [online] 102(2), 1205-1212. http://dx.doi.org/10.3168/jds.2018-15392

    2019 - View publication details

  17. Lapierre, H., R. Martineau, S. Binggeli, D. Pellerin, and D.R. Ouellet. 2017. Is it needed to balance a dairy ration for metabolizable protein if it is balanced for essential amino acids and RDP? Pages 13-31 In: Proceedings of the Dairy Cattle Nutrition Workshop. PennState Extension Dairy Team. Grantville, PA, USA.

    2017 - View publication details

  18. Prates, L.L., Valadares, R.F.D., Filho, S.C.V., Detmann, E., Ouellet, D.R., Batista, E.D., Zanetti, D., Pacheco, M.V.C., Silva, B.C. (2017). Investigating the effects of sex of growing Nellore cattle and crude protein intake on the utilization of recycled N for microbial protein synthesis in the rumen by using intravenous 15N15N-urea infusion. Animal Feed Science and Technology, [online] 231 119-130. http://dx.doi.org/10.1016/j.anifeedsci.2017.06.014

    2017 - View publication details

  19. Journal of Dairy Science Vol. 100 Suppl. 2 Abstract #: T229, page 312.

    2017 - View publication details

  20. Rouissi, A., H. Lapierre, D. Pellerin, et D. R. Ouellet. 2017. Évaluation du profil en acides aminés et mesure de la digestibilité de l’azote du tourteau de canola chez des vaches laitières. Résumé #17. Journée d’information scientifique – Bovins laitiers et Plantes fourragères. Drummondville.

    2017 - View publication details

Research facility

2000 College Street
Sherbrooke, QC J1M 0C8
Canada

Language

English
French