Adverse reactions to vaccines and drugs in cattle

Adverse reactions to vaccines and drugs in cattle

Allergic reactions 
can range from hives 
to itching or swelling 
to systemic shock 
leading to fluid 
in the lungs and 
sudden death

Occasionally cattle experience a reaction to vaccine or medication (injected, applied topically or given orally). An allergic reaction can be mild and local (swelling at the injection site after vaccination) or serious and fatal — if the animal goes into anaphylactic shock. Many of the things we administer are foreign to the animal’s body, and […] Read more





Don’t ignore drug-resistant parasites

Don’t ignore drug-resistant parasites

Dr. John Gilleard, the associate dean of research and professor of parasitology at the University of Calgary faculty of veterinary medicine says most of the studies about drug-resistant worms in cattle were done in the U.S. and Europe but the story they tell is applicable to Western Canada. “What has happened in the past 10 […] Read more

cows grazing ryegrass in winter

Ryegrass works for winter grazing cows

The only drawback is some extra birth weight on the calves

Andy Schuepbach, a registered Hereford breeder in southern Alberta, uses two varieties of ryegrass to provide fall and winter feed for his cattle. The high protein content of these grasses eliminates the need for any other protein source. “We grow barley for silage, and after it’s seeded we seed 10 pounds of a mixture of […] Read more


calves in a stable

Looking for ways to manage the pain

The cattle industry is moving toward low stress handling, better ways to manage cattle, etc., but one issue that still needs to be addressed is pain management for routine procedures such as branding, castrating and dehorning. Dr. Eugene Janzen at the University of Calgary says the veterinary profession is rapidly changing its attitude to pain […] Read more

calf and mother in winter

What to do about cold stress in newborns

Calves born in cold weather may suffer adverse effects if they are unable to get right up and nurse before they become chilled. Dr. Steve Hendrick of Coaldale Veterinarians, Coaldale, Alta., says anyone calving during winter has to deal with these issues and it can be a challenge. “Make sure you have lots of bedding […] Read more


An aborted calf fetus

Why is she open?

Not all pregnancy losses are due to infection

After a cow is bred, she should calve about 283 days later. But sometimes the pregnancy is terminated early and when you go hunting for a reason you’ll discover they are many causes for a lost pregnancy. Most of the time when there’s a poor pregnancy rate in a herd we suspect infectious causes like […] Read more

cows and calves in a pasture

A calving checklist

Get ready ahead of time

Before calving, you want everything on hand that might be needed, and all facilities and equipment functional and ready for use. Don’t wait till the last minute to get machinery out of the calving barn or maternity pen if that’s where you parked it, or to try to find the new box of OB gloves […] Read more