Controlling disease will become more difficult as new diseases constantly emerge, and novel environmental, social and financial pressures across the globe change the face of disease control.

Addressing zoonotic diseases on a global scale

Vet Advice with Dr. Ron Clarke

In March 2019, the World Health Organization, the Food and Agriculture Organization of the United Nations and the World Organization for Animal Health launched a guide for countries using a One Health approach to control zoonotic diseases. The guide became available internationally in multiple languages in October 2019. Zoonotic diseases such as avian influenza, rabies, […] Read more



Livestock should not be allowed to consume feeds containing more than 0.5 per cent nitrate if they have not been previously exposed.

Got livestock feed with high nitrates? Here’s how to manage it

Vet Advice with Dr. Ron Clarke

Hail, drought, spray drift or frost can all disrupt the normal growth of plants, causing nitrate accumulations that can lead to nitrate poisoning. This year, depending where you’re from, had them all. The number of animals affected by acute nitrate poisoning on the Prairies is usually low, but when losses occur, they occur suddenly and […] Read more

Sweet clover is high in coumarin, which converts to dicoumarol – a potent vitamin K antagonist and anticoagulant– if the plant is spoiled or damaged.

Vet Advice: Avoiding sweet clover poisoning

A variety of bacteria and moulds can grow in sweet clover once baled or put up as silage

Preparing forages and getting them stored in perfect condition seldom happens. Spoilage is often linked to the production of moulds and a broad spectrum of mycotoxins in grains. Syndromes in domestic livestock following consumption of feed containing mycotoxins varies depending on the species of animal involved, the stage of the production cycle when it is […] Read more


The Animal Health Emergency Management  project aims to prepare the livestock industry, from producers to vets to industry associations, for a serious disease outbreak.

Telling a story

Vet Advice with Dr. Ron Clarke

Our job as scientists is to find the truth. But we must also be storytellers. Science can’t exist without telling a story. The question is not whether we should use it, but how we should use it best, writes Nick Enfield in The Guardian. Scientists often struggle to communicate the findings of research. The subject […] Read more

This winter caught many cattle producers by surprise, with the deep freeze and snow depleting feed supplies quicker than anticipated.

Dealing with uncertain times

Vet Advice with Dr. Ron Clarke

[UPDATED: June 13, 2019] Cattle producers across Western Canada grow weary of the relentless 2018-19 winter. For those of us living on the eastern slopes of the Rockies, it started with a record snowfall in October followed by record cold temperatures that extended across the central and northern Prairies. From mid-December to the end of […] Read more


The majority of deaths due to bovine respiratory disease (BRD) occur shortly after arrival to the feedlot or within the first 45 days.

Chute-side diagnostics for bovine respiratory disease remain elusive

Vet Advice with Dr. Ron Clarke

Speakers at the 2019 Western Canadian Association of Bovine Practitioners addressed bovine respiratory disease (BRD) from several perspectives, including emergence of changing patterns of respiratory disease, economics of BRD, prudent use of antimicrobials in prevention and treatment of BRD, and diagnostics. BRD accounts for approximately 75 per cent of feedlot morbidity and 50 to 70 […] Read more

Proper planning is always a part of getting through calving season successfully.

Why calving season is different this year

Vet Advice with Dr. Ron Clarke

The first major event facing cattle producers in 2019 is planning for calving season. This year there is a new wrinkle in managing animal health programs on the ranch: establishing a veterinary-client patient relationship with a veterinarian. This provides an avenue to access medically important antimicrobials through a prescription as needed. There are few ranches […] Read more


Climate change’s impact on managing animal health

Climate change’s impact on managing animal health

Vet Advice with Dr. Ron Clarke

I’m losing more arguments with grandchildren that our climate hasn’t changed significantly, prompted by signals that have only grown more evident through the last half of my lifetime. At one point, I convinced myself that climatic changes were part of a natural phenomenon — one of those things history would look upon and call an […] Read more

Fatigued Cattle Syndrome can exhibit in highly finished cattle following transport.

What we know about Fatigued Cattle Syndrome

Vet Advice with Dr. Ron Clarke

Fatigued Cattle Syndrome (FCS) appeared as a clinical syndrome during the summer of 2013. Scientists described it as a novel syndrome affecting highly finished cattle following transport. FCS became a welfare issue when first described and remains a potential welfare problem if not managed properly. Prevention of FCS appears on many conference agendas covering beef […] Read more