A5021770533- Animal Disease Management and Epidemiology
- Microbial infections and disease research
- Salmonella and Campylobacter epidemiology
- Zoonotic diseases and public health
- Animal Nutrition and Physiology
- Animal Virus Infections Studies
- Vector-Borne Animal Diseases
- Animal Behavior and Welfare Studies
- Viral gastroenteritis research and epidemiology
- Viral Infections and Vectors
- Bird parasitology and diseases
- Food Safety and Hygiene
- Veterinary medicine and infectious diseases
- Antimicrobial Resistance in Staphylococcus
- Livestock and Poultry Management
- Virus-based gene therapy research
- Influenza Virus Research Studies
- Plant Virus Research Studies
- Streptococcal Infections and Treatments
- Meat and Animal Product Quality
- Genetic and phenotypic traits in livestock
- Reliability and Agreement in Measurement
- Plant Pathogenic Bacteria Studies
- Agriculture and Farm Safety
- Aquaculture disease management and microbiota
Université de Montréal
2009-2024
Cegep de Saint Hyacinthe
2015-2023
North Carolina State University
1997-2007
University of Guelph
1992-1994
Agriculture and Agri-Food Canada
1994
University of Minnesota
1988-1993
Five hundred and seventy-three clinical submissions with fowl adenovirus (FAdV) involvement were examined to investigate the association of different types FAdV problems related infection. Samples received from 2000 2006 originated seven Canadian provinces. Four eighty-seven inclusion body hepatitis (IBH) related, while 86 not IBH related. Viruses isolated 287 samples further analysed by hexon gene loop 1 sequencing. Twenty-seven genotyped FAdVs Alberta, 20 British Columbia, 16 Manitoba, one...
Biosecurity is crucial for infectious disease prevention, more importantly in the absence of vaccination. The need improving implementation biosecurity practices was highlighted French duck farms following 2016–2017 H5N8 Highly Pathogenic Avian Influenza (HPAI) epidemic. Farmers have multiple reasons not implementing practices: external (time, money) and internal (socio-psychological). purpose this study to determine how sets socio-psychological factors (i.e. knowledge on avian influenza...
The purpose of this study was to characterize Escherichia coli isolates from avian cellulitis, particularly with respect the occurrence potential virulence factors. At slaughter, five broilers lesions cellulitis were selected each 20 farms among processed. One hundred E. characterized serotype; biotype; drug susceptibility; plasmid profile; ability produce aerobactin, colicin, colicin V, and hemolysin; cytotoxicity for Vero cells chicken fibroblasts. same properties determined a collection...
The severe impact of recently reported Highly Pathogenic Avian Influenza (HPAI) outbreaks have emphasized the need to better monitor biosecurity practices among different French poultry production systems. Between October 2016 and September 2018, a large national cross-sectional study was carried out in France assess levels high-risk farms identify farm profiles, using Multiple Correspondence Hierarchical Cluster Analyses. Results indicate that there is substantial room for improvement...
The objectives of this study were to evaluate the role trauma skin in development Escherichia coli cellulitis and compare abilities three isolates (O78, O115, O21,83), one airsacculitis isolate (untypable) fecal (O86) E. induce broiler chickens. Forty-eight 4-week-old commercial chickens housed groups six eight battery cages. For five groups, on left side abdominal region was traumatized by scratching with a 22-gauge needle, then contaminated swab dipped broth culture isolates. remaining an...
A total of 110 broiler flocks processed in a single processing plant southern Ontario were studied for purposes describing the cellulitis lesions and investigating possible associations between other categories condemnation at plant. Two hundred ninety-five carcasses condemned examined. They came from 65 flocks. The tended to be unilateral with most (87%) having one lesion. majority (92%) located on abdomen. Almost 65% large (> or = 8.1 cm2), 27% medium (2.1-8.0 cm2). On basis gross...
Associations between abdominal skin scratches and stocking density, strain of birds, degree feathering were investigated in a clinical trial. Four hundred eighty 1-day-old male broiler chicks from two different strains (A B) assigned to four groups: 1) high density (0.07 m2/bird) A, 2) B, 3) normal (0.14 4) B. Birds examined for at 28, 35, 42 days age. Two outcomes considered scratches: presence (yes/no) severity (severe [if deep cut or least three superficial cuts present]/not severe). Only...
In Europe, African swine fever virus (ASFV) is one of the most threatening infectious transboundary diseases domestic pigs and wild boar. September 2018, ASF was detected in boar South Belgium. France, as a bordering country, extremely concerned about situation Belgium, an active preparedness ongoing country. One questions raised by this relates to disturbing activities that may affect movements their possible impact on spread ASFV. Despite evidence disturbance related hunting practices,...
A mail survey of 171 farms with broiler chicken flocks processed in a single processing plant southern Ontario was conducted during the period July-August 1993 as part retrospective study. The population farm prevalence cellulitis 31/10,000 birds. provided information about management chickens and allowed investigation association between risk factors. Univariate multivariate analyses were performed to examine relationship binary outcome (high/low prevalence) factors using logistic...
The distribution of cannibalism cases in a flock 19,776 Babcock White Leghorns was monitored from 21 to 54 wk age. hens were kept single-floor house consisting four banks two-deck stair-step cages. Each the 4,944 cages held at density 152 cm2 (60 inches2) per hen. cage assigned number 1 4,944, and each dead bird tagged according its origin. Dead birds collected daily, freezer, necropsied weekly. Farm personnel routinely transferred live hen an end where mortality had occurred. cause death,...
People can act as mechanical vectors, and introduce spread infectious diseases on farms. Preventive measures, such changing boots washing hands, need systematic implementation to manage this risk. Unfortunately, biosecurity compliance regarding measures in barn anterooms has been shown be generally low all animal production systems. Indeed, the main challenge with is maintaining compliance. The development of an effective on-farm program requires several elements. These include farm designs...