Research Portal

This portal provides ample information about the research work carried out in the laboratory of our PHRN's research investigators. Each research piece below summarizes their work focused in one of their projects and would also allow to access links to their research publications for more detailed information. We have now initiated this portal and many more research stories to follow soon.

Research Stories/ Highlights

Antibiotic resistance

Antibiotic resistance remains a hot topic both in animal and human health. Increased awareness of the problem has brought some welcome changes in our use of antibiotics in animals. For instance, the use of antibiotics critically important for human medicine such as extended-spectrum cephalosporins (ESCs) has now been discontinued in poultry. This has resulted in […]

A new antibiotic resistance gene in Salmonella isolated from broiler chickens

Dr. Moussa Diarra’s laboratory previously described Salmonella enterica serovar Heidelberg isolates harboring a chromosomal gene cluster similar to the glutathione S-transferase gene, a putative fosA gene conferring resistance to fosfomycin. Here, we show that this new gene, named fosA7, confers resistance to fosfomycin. The introduction of fosA7 into the fosfomycin-susceptible Salmonella enterica serovar Enteritidis resulted […]

Farmers and consumers chicken out on antibiotics

Canadians are eating chicken at record levels but have a complicated relationship with the way our poultry is produced. Farmers are addressing the problem. By: Owen Roberts Toronto Metro News Consumers have a conflicted relationship with chicken produced in this country. On one hand, chicken is being devoured at record levels. In the past five […]

Probiotics against pathogens in poultry

bu Emmy Koeleman Editor: All About Feed & Dairy Global Researchers at the Ontario Veterinary College, University of Guelph, are studying probiotics as an alternative to traditional antimicrobials to combat pathogens in poultry. Over the last decade, Dr Shayan Sharif’s lab at the University of Guelph has been involved in developing probiotic formulations against Salmonella. […]

Dr. Sharif Lab Aims to Make Chickens Healthier to Improve Food Safety

The chicken eggs in Prof. Shayan Sharif’s lab look like ordinary eggs, but they’re not. Some of them have been vaccinated against diseases that can cause illness in humans and have cost the poultry industry hundreds of millions of dollars. Dr. Sharif is the leader of Poultry Health Research Network. “We are developing better ways […]

Cranberries may boost broiler chicken immunity (Dr. M Diarra laboratory)

Dr. Moussa S. Diarra is a research scientist at Agriculture and Agri-Food Canada’s (AAFC) Guelph Research and Development Centre. His research is focused on antibiotic resistance and alternatives to antibiotics as well as bacterial pathogenesis and the interactions between pathogens and their hosts. He is the leader of the poultry node of an AAFC’s national […]

On-farm sources of Campylobacter species in broiler chickens (Dr Agnes Agunos et al)

Agnes Agunos, Lisa Waddell L, David Legerand Eduardo Taboada Dr Agnes Agunos (center in picture) is a Scientist working at the Public Health Agnency of Canada. She is engaged in antimicrobial drug resistance research programs and below is the highlight of one of the project’s findings. In Canada, Campylobacter remains one of the leading causes […]

Understanding and controlling Necrotic Enteritis in broiler chickens (Dr. J. Prescott laboratory)

Avian necrotic enteritis (NE) caused by Clostridium perfringens is a major global problem in broiler chicken production. Losses through subclinical disease, through clinical disease and mortality, and through the cost of prevention by long-term use of antibiotics have been estimated to cost the global chicken industry 2-6 billion dollars. The shift to antibiotic-, including coccidiostat-, […]

Towards control of Necrotic Enteritis in chickens (Dr. J. Gong laboratory)

Necrotic enteritis (NE) is caused by Clostridium perfringens bacteria. The estimated loss from NE in 2015 is approximately US$6 billion worldwide and there is an urgent need to control NE disease. Dr. Joshua Gong, a Research Scientist with Agriculture & Agri-Food Canada in Guelph and PHRN member, has taken multiple approaches to study the disease […]