Streptococcus suis is an important bacterial pathogen in pigs and also an emerging zoonotic agent. Currently, no commercial vaccine is available to prevent S. suis infection. Researchers from the Faculty of Veterinary Medicine have teamed up with international experts to develop a prototype based on new vaccine technology.
Presenter: Mariela Segura 3200 Sicotte, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, J2S 2M2, Canada.
Authors, co-authors: Marcelo Gottschalk[a], Todd L. Lowary[b], Pei-Jhen Li[b], Manas Jana[b], Marcos Lo Fiego[b], Ryan P. Sweeney[b], Potjanee Srimanote[c], Mélanie Lehoux[a], and Mariela Segura [a] Centre de Recherche en Infectiologie Porcine et Avicole, Faculté de Médecine Vétérinaire, Université de Montréal, Quebec, Canada. [b] Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada. [c] Faculty of Allied Health Sciences, Thammasat University, Pathumthani, Thailand
Streptococcus suis is an important bacterial pathogen in pigs and also an emerging zoonotic agent. In order to reduce the impact of this bacterium, farms use autogenous vaccines. Since S. suis is poorly immunogenic, and each company develops its own production protocol using a strain isolated from the farm requiring the service, it is difficult to know if this type of vaccine is effective. Four experts compared vaccination periods and the impact of maternal antibodies on the effectiveness of these vaccines.
Presenter: Marcelo Gottschalk 3200 Sicotte, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, J2S 2M2, Canada.
Authors, co-authors:
Marcelo Gottschalk, Mariela Segura, Faculty of Veterinary Medicine, University of Montreal, Quebec, Canada Laetitia Cloutier, Marie-Claude Poulin, Centre de développement du porc du Québec
In French only.
Le projet vise à optimiser la stratégie de contrôle d’ambiance pour maintenir les porcs dans un environnement adéquat, même lors de vagues de chaleur, en utilisant l’indice HS2I pour évaluer et ajuster le confort thermique. Les résultats principaux concernent le maintien des performances de croissance et une réduction de l’utilisation de l’eau lors de vagues de chaleur imposées.
Présentateur : Rémi Quirion, [email protected]
Superviseur principal : Sébastien Fournel, Université Laval, Pavillon Paul-Comtois 2425, rue de l’Agriculture. Québec (QC) G1V 0A6,, [email protected]
Auteurs, coauteurs : Rémi Quirion1, Sébastien Fournel1, Alain N. Rousseau2
1. Université Laval, Département des sols et de génie agroalimentaire 2. Institut national de la recherche scientifique (Centre Eau-Terre-Environnement)
This study investigated if early life management practices influence the stress of pigs and whether this is detectable by measuring cortisol, dehydroepiandrosterone (DHEA) and the cortisol:DHEA ratio in swine hair. There was no effect of early life management on hair hormones. Piglets with pre-weaning lameness exhibited a 58% higher cortisol:DHEA ratio, suggesting this may be a potential biomarker of lameness induced stress.
Presenter : Darian Pollock, [email protected]
Principal supervisor : Yolande Seddon, [email protected]
Authors, co-authors : Darian Pollock1, David Janz1, Yolande Seddon1
1 NSERC Industrial Research Chair in Swine Welfare Western College of Veterinary Medicine, University of Saskatchewan, Canada
Les bioaérosols des élevages porcins peuvent transporter des bactéries et gènes d’antibiorésistance (GAs). Ceux-ci ont donc été échantillonnés sur huit fermes au Québec. Les concentrations de bactéries étaient similaires entre l’intérieur des bâtiments et la sortie des ventilateurs. Les Clostridiaceae, Peptostreptococaceae et GRAs étaient majoritaires, suggérant une contribution de ces élevages à l’émission de bactéries et GRAs dans l’environnement.
Présentateur : Asmaâ Khalloufi
Superviseur : Marie-Lou Gaucher, [email protected]
Auteurs, coauteurs : A. Khalloufi1,3, A. Thibodeau1,2,3, William P. Thériault1,3, Joanie Lemieux4, Magali-Wen St-Germain4, , Marc Veillette5, Valérie Létourneau5, Nathalie Turgeon5 , C. Duchaine4,5, M.L. Gaucher1,2,3
(1) CRSV- UdeM (2) GREMIP-UdeM (3) CRIPA-UdeM (4) FSG-ULaval (5) IUCPQ-ULaval
Salmonella fait partie du microbiote digestif du porc et pourrait se retrouver dans ses produits de viande, causant des gastro-entérites chez le consommateur. Un probiotique testé dans un bioréacteur, mimant les conditions du colon du porc, a montré son efficacité dans l’inhibition du Salmonella dans cet environnement tout en modulant le microbiote intestinal du porc.
Présentateur : Amély Grandmont, [email protected]
Superviseur : Alexandre Thibodeau, [email protected]
Auteurs, coauteurs : Amély Grandmont1,2,3, Mohamed Rhouma1,2,3, Marie-Pierre Létourneau-Montminy3,4, William Thériault1,2,3, Isabelle Mainville5, Yves Arcand5, Alexandre Thibodeau1,2,3
1. Chaire de Recherche en Salubrité des Viandes 2. Groupe de Recherche et d’Enseignement en Salubrité Alimentaire 3. Centre de Recherche en Infectiologie Porcine et Avicole 4.Chaire de recherche sur les stratégies alternatives d’alimentation des porcs et des volailles 5. Agriculture Agroalimentaire Canada (St-Hyacinthe)
Research suggests that the hormones cortisol and dehydroepiandrosterone (DHEA) relate to stress and physical and mental wellbeing respectively and thus may serve as biomarkers of welfare in swine. The goal of this research is to determine if evaluating the circadian rhythms of these hormones as well as their concentrations within hair could serve as biomarkers of long-term welfare in swine
Presenter : Darian Pollock, 52 Campus drive, [email protected]
Supervisor : Yolande Seddon, 52 Campus drive, [email protected]
Authors, co-authors : 1Darian Pollock, 2Dave Janz, 1Yolande Seddon
1Large animal clinical sciences, Western College of Veterinary Medicine, University of Saskatchewan
2Veterinary biomedical sciences, Western College of Veterinary Medicine, University of Saskatchewan
Exploring the possibility to promote play in grow-finish pigs to use it as a tool to promote positive welfare in intensive commercial systems as well as an indicator of good welfare on farms and identify whether play has positive effects on stress reduction and the emotional state of pigs.
Presenter : Karolína Steinerová, [email protected], University of Saskatchewan Large Animal Clinical Sciences Western College of Veterinary Medicine 52 Campus Drive, Room 2552 Saskatoon, SK, S7N 5B4
Supervisor : Yolande Seddon, [email protected], University of Saskatchewan Large Animal Clinical Sciences Western College of Veterinary Medicine 52 Campus Drive, Room 2505 Saskatoon, SK, S7N 5B4
Authors, co-authors : Karolína Steinerová1, Jennifer A. Brown2, Sarah E. Parker1, Yolande M. Seddon1 1Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan; 2Prairie Swine Centre Inc., Saskatoon, Canada; University of Saskatchewan
The evaluation of animal welfare indicators on swine carcasses could offer a cost-effective method for the routine evaluation of swine welfare for farms supplying pigs to abattoirs. This project evaluates whether measuring animal-based indicators of welfare on swine carcasses can accurately inform about the welfare of swine on-farm and during pre-slaughter handling, and the relationship between welfare indicators, and economic loss.
Presenter : Giuliana G. Miguel-Pacheco, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5A2, [email protected]
Supervisor : Yolande Seddon, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5A2, [email protected]
Authors : Giuliana G Miguel-Pacheco1, Yuanyue Wang1, Yolande M Seddon1
1Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5A2.
PRRSv is infamously known for its impact on the worlds’ porcine industry. Since no efficient treatment is commercially available, this study evaluates the antiviral potential of four drugs derives from compounds which we have shown to inhibit PRRSv. Interestingly, two of these drugs, developed to treat HIV, have shown a significative decrease in viral replication in vitro.
Presenter : Marie-Jeanne Pesant, Faculté de médecine vétérinaire, Université de Montréal, [email protected]
Supervisor : Carl A Gagnon, 3200 rue Sicotte (bureau 3963), [email protected]
Authors, co-authors : Pesant, Marie-Jeanne1,3, Provost, Chantale2, Salmin, Abdulrahman Fuad, M. Jacques3, F. Beaudry1, C.A. Gagnon1,2,3
1Swine and Poultry Infectious Diseases Research Center [CRIPA-FRQ], Faculté de médecine vétérinaire, Université de Montréal, Québec, Canada, 2Molecular diagnostic laboratory, Centre de diagnostic vétérinaire de l’Université de Montréal, Québec, Canada, 3Research Group on Infectious Diseases in Animal Production [GREMIP], Faculté de médecine vétérinaire, Université de Montréal, Québec, Canada