GFM Network News


Calling Alberta deer hunters

The University of Calgary faculty of veterinary medicine is looking for help from deer hunters. Researchers at the faculty are conducting a study on gastrointestinal parasite diversity in deer. For that, they need fresh feces samples. Hunters who see deer defecate are asked to collect samples and send by courier to the department. Samples can […] Read more

How to prevent parasite resistance to worms and flies

Beef 911: Developing and using good protocols will keep these valuable treatments working for you and your herd

We heard years ago about resistance with fly tags. I believe the first one was called Bovaid and with no other tags on the market, researchers noticed resistance developing after a few years. Soon other companies were making tags with a different family of chemicals in them, so producers could rotate them and not allow […] Read more


Grazing sheep before letting cows into a pasture is one of the ways to lessen the parasite risk.

Ruminant parasite drugs are a precious tool — here’s how to use them

Rotating drugs, underdosing, and overtreating can lead to drug resistance in ruminants, says expert

There’s no denying it — drugs used to treat parasites in sheep and goat production need to be employed properly. If they’re not, that could lead to parasitic resistance and drugs that just don’t work. “You can’t just hammer drugs at the problem, because they won’t work forever,” said Lynn Tait, a sheep producer and […] Read more

Manage your sheep pasture to reduce parasites

When it comes to sheep and goats, pasture management is not just about nutrition

Parasites in small ruminants can become a production problem that can’t be solved by throwing dewormer on your animals once a year. Keeping a parasite load low requires a strategy and good management. “Your goal is not to be completely free of parasites,” said Lynn Tait, small-ruminant veterinarian and co-owner of OC Flock Management. “That […] Read more


Parasites are often a hidden health hazard because cattle don’t look sick, says parasitology professor, John Gilleard.

Parasites could be costing you big bucks without you even realizing it

Infected cattle often look healthy, but their daily gain might be up to half a pound lower than it should be

Little is known about the impact of parasites on Canadian cattle production. But one thing is sure — resistance to the medication used to treat these parasites is growing. “There’s a lack of local information and a lack of information on parasites in Canada. That’s a problem,” John Gilleard, professor of parasitology in the University […] Read more

Cows in pasture

Preventing negative side-effects of vaccinations in cattle

Beef 911: Vaccinating is a great tool, but producers need vaccination protocols and should be ready to deal with their negative effects

There is now a multitude of vaccines on the market for all facets of the beef and dairy industry. Vaccinating has become part of the biosecurity program on your farm, ranch or dairy. It is good for our industry as it controls disease, minimizes antibiotic use, improves production, and decreases death or losses from abortion. […] Read more


Ladybugs are one example of an ‘undercover operative’ that can deal with crop pests, 
says a provincial commercial horticulture specialist.

How are biocontrol agents like James Bond?

Beneficial control agents include beneficial bacteria, fungi, nematodes and insects that feed on harmful organisms

As the public grows more concerned about chemical use, many growers struggle with how to keep their product salable while using fewer pesticides. Some growers are turning to a new kind of ‘undercover operative’ to deal with crop pests. “Biological controls or biocontrol agents attack and ‘neutralize’ or reduce pests in a cropping system and […] Read more