Réjean Lefebvre
Biologie et reproduction
- Professeur titulaire
-
Faculté de médecine vétérinaire - Département de sciences cliniques
Pavillon 3130, rue Dessaulles, room 2467
Profile
Research expertise
- Physiologie de l'oviducte mammalien
- Transport des spermatozoïdes dans le tractus génital femelle
- Interaction entre spermatozoïdes et cellules de l'oviducte
Awards and recognitions
Prix d'excellence Pfizer pour la recherche clinique (2008)
education
- 1996 — Ph.D. en reproduction — Médecine vétérinaire — Université Cornell
- 1993 — Diplômé de l'American College of Theriogenologists — Médecine vétérinaire — American College of Theriogenologists
- 1993 — Résidence en thériogénologie — Médecine vétérinaire — Université de Guelph
- 1985 — Internat en reproduction — Médecine vétérinaire — Université de Montréal
- 1984 — D.M.V. — Médecine vétérinaire — Université de Montréal
Affiliations and responsabilities
Research affiliations
Teaching and supervision
Student supervision
Theses and dissertation supervision (Papyrus Institutional Repository)
Uterine immune response and microbiota composition in postpartum dairy cows
Cycle : Doctoral
Grade : Ph. D.
Levels of immunoglobulin G, white blood cells and fibrinogen in dairy cows with and without endometritis during the transitional period
Cycle : Master's
Grade : M. Sc.
Expression et effets des WNTs sur l’expansion du cumulus et la maturation de l’ovocyte chez la vache
Cycle : Master's
Grade : M. Sc.
Évaluation de l’endométrite clinique chez la vache laitière et efficacité d’un traitement de céfapirine sous forme d’une infusion intra-utérine.
Cycle : Master's
Grade : M. Sc.
Superovulation chez la vache laitière : impact de la progestéronémie
Cycle : Master's
Grade : M. Sc.
Morphological and functional characterization of placenta during gestation in bovine clones derived by somatic nuclear transfer
Cycle : Doctoral
Grade : Ph. D.
Relations entre le statut utérin, les paramètres biochimiques du sérum et du liquide de lavage utérin et la production d’embryons chez les vaches laitières après surovulation
Cycle : Master's
Grade : M. Sc.
Analyse de la fertilité des vaches laitières Holstein «Repeat Breeder»
Cycle : Master's
Grade : M. Sc.
Comparison of a leukocyte esterase test with endometrial cytology for the diagnosis of subclinical endometritis and correlation with first service pregnancy rate in postpartum Holstein cows
Cycle : Master's
Grade : M. Sc.
Évaluation ultrasonographique du bien-être foetal bovin en fin de gestation
Cycle : Master's
Grade : M. Sc.
Projects
Research projects
Plan de transfert de connaissances_Validation du traitement intra-utérin de propolis/miel lors d’endométrites post-partum chez la vache laitière des troupeaux biologiques
Plan de financement_Validation du traitement intra-utérin de propolis/miel lors d’endométrites post-partum chez la vache laitière des troupeaux biologiques
Exploration of novel sex sorting methods in bovine semen based on a proteomics and nanotechnology approach
REGROUPEMENT STRATEGIQUE - RESEAU QUEBECOIS EN REPRODUCTION (RQR)
APPROCHES MOLECULAIRES ET PHYSIOLOGIQUESPOUR COMPRENDRE LES PROBLEMES DE FERTILITE
CREATION DU CENTRE DES BIOTECHNOLOGIES ASSISTEES DE LA REPRODUCTION EQUINE DE LA FACULTE DE MEDECINE VETERINAIRE DE L'UNIVERSITE DE MONTREAL (CENTRE BARE) : PROJET OSTEOCHONDROSE (OCD) CHEZ LE CHEVAL STANDARDBRED
endometritis in dairy cows
Outreach
Publications and presentations
Publications
Marchionatti E, Desrochers A, Lefebvre RC, Nichols S. Partial Unilateral Hysterectomy by Standing Flank Approach in Seven Dairy Cattle. Veterinary Surgery, Accepted 2016
RC Lefebvre. Fetal mummification in the major domestic species: current perspectives on causes and management. Vet Med Res Report.6:233-244, 2015.
Rasolomboahanginjatovo HS, Chorfi Y, Dupras R, Mills L, Lefebvre R. Effect of superovulation on uterine and serum biochemical parameters and its potential association with transferable embryos in Holstein dairy cows. Journal of veterinary science. 2014;15(2):273-81.
Brisville AC, Fecteau G, Boysen S, Desrochers A, Dorval P, Buczinski S, Lefebvre RC, Hélie P, Blondin P and Smith LC. Neonatal morbidity and mortality of 31 calves derived from cloning. J Vet Intern med 5:1218-1227, 2013.
AT Cory, CA Price, RC Lefebvre, MF Palin. Identification of single nucleotide polymorphisms in the bovine follicle-stimulating hormone receptor and effects of genotypes on superovulatory response traits . Anim Genet, 44:197-201, 2013.
Couto, G., D. Vaillancourt, and RC Lefebvre. Validation of leukocyte esterase activity for the diagnosis of subclinical endometritis in postpartum dairy cows. Theriogenology, 79 :103-107, 2013.
Couto GB, Vaillancourt DH, Lefebvre RC. Comparison of a leukocyte esterase test with endometrial cytology for diagnosis of subclinical endometritis in postpartum dairy cows. Theriogenology. 2013;79(1):103-7.
RC Lefebvre and AE Stock. Postpartujm dairy cows with clinical endometritris: An evidence-based evalution. Vet Clin Food Anim 28:79-96, 2012.
RC Lefebvre, AE Stock et N Tison. Les facteurs de risque individuels des principales affections utérines postpartum chez la vache. Le Nouveau Praticien Vétérinaire, 5 :13-18, 2012.
Lefebvre RC, Stock AE. Therapeutic efficiency of antibiotics and prostaglandin F2alpha in postpartum dairy cows with clinical endometritis: an evidence-based evaluation. The Veterinary clinics of North America Food animal practice. 2012;28(1):79-96, ix.
Kohan-Ghadr HR, Smith LC, Arnold DR, Murphy BD, Lefebvre RC. Aberrant expression of E-cadherin and beta-catenin proteins in placenta of bovine embryos derived from somatic cell nuclear transfer. Reproduction, fertility, and development. 2012;24(4):588-98.
Verduzco A, Fecteau G, Lefebvre R, Smith LC, Murphy BD. Expression of steroidogenic proteins in bovine placenta during the first half of gestation. Reproduction, fertility, and development. 2012;24(2):392-404.
Smith LC, Suzuki J, Jr., Goff AK, Filion F, Therrien J, Murphy BD, et al. Developmental and epigenetic anomalies in cloned cattle. Reproduction in domestic animals = Zuchthygiene. 2012;47 Suppl 4:107-14.
Disciplines
- Biology and Related Sciences
Areas of expertise
- Thériogénologie