cattle and sheep

Vet Advice: Disease control ineffective when puzzle pieces missing

Knowledge gaps remain on a bacterial pathogen known to affect sheep, but also found in cattle

Mycoplasma ovipneumoniae (M. ovi or Movi) is a respiratory pathogen associated with variable degrees of pneumonia in domestic sheep and goats. Movi first appeared in 1972 and has been on the list of respiratory diseases for sheep and goats since. Healthy bighorn sheep populations, originally naive to Movi, suffer severe outbreaks of mixed microbial pneumonia […] Read more

While experience and training improve your ability to eyeball a cow’s body condition score, looks can still be deceiving.

Thin cows cost money

Vet Advice with Dr. Ron Clarke

Any discussion about getting ready for calving season should start with an evaluation of the body condition of pregnant cows and heifers. There are also significant economic factors to consider.  Several issues recently shifted priorities away from routine body condition scoring, such as beef supply chain disruptions due to COVID-19 and sudden swings in cattle. […] Read more


A northern gannet colony at the Cape St. Mary’s Ecological Reserve on Newfoundland’s Avalon Peninsula. (Benedek/E+/Getty Images)

Vet Advice: Viral storms endanger wildlife

Wildlife health is an indication of the health of the environment on which we rely

Listening for blue jays call in early mornings in need of peanuts is a favourite pastime. I sit with Addie, our golden doodle, within a foot or two of what’s offered, coffee in hand and watch my friends wrap a beak around whole peanuts, then squirrel them away in adjacent spruce. The routine stopped midsummer […] Read more

Each time anthrax hits the news, the veterinary community goes through a list of questions.

Anthrax: A maverick killer for livestock that never grows old

Vet Advice with Dr. Ron Clarke

Ancient Greece and Rome were well acquainted with anthrax many famous scholars from those times mentioned it in their writings. Today we continue to write about anthrax, partially because the soil-borne pathogen continues to surface as a livestock killer, mostly in small outbreaks, but makes remarkable news when discussed in the context of biological warfare […] Read more


Viewing COVID-19 from a veterinary practice perspective

Viewing COVID-19 from a veterinary practice perspective

Vet Advice with Dr. Ron Clarke

COVID-19 changed the world. It changed perceptions in animal care, human responsibilities regarding animal health management and how humans will think about their own health down the road. Opinions on what the future offers vary widely between individuals. Personal opinion, level of understanding about issues and acceptance of what’s right and what’s wrong in the […] Read more



The relationship between politics, crime and oligarchy is a tangled web.

Oligarchs debase EU agriculture

Vet Advice with Dr. Ron Clarke

A new week started on the first day of spring 2018. The collection of cars and half tons in the parking lot at the local burger joint meant the “Circle of Wisdom” had already started their daily debate, enriched with weekend news stories and beginning stages of sports playoffs. The Circle is a cluster of […] Read more

A recent global research project looks at the interaction between grazing pressure and climate on soil health.

Ranching west of the 100th Meridian

Vet Advice with Dr. Ron Clarke

Outlanders venturing west were frightened by the Great Plains, with its sweeping grasslands that extended from horizon to horizon. The only inhabitants at that time were small clusters of Indigenous people. In the beginning, great farms stippled majestic forests across Eastern Canada. Western climb gave way to deserts and mountains. Harvey Leifert, in an article […] Read more



One of the essential nutrients cattle fall short of grazing dry pastures and consuming crop residue is vitamin A.

Drought feeds vitamin A deficiencies

Vet Advice with Dr. Ron Clarke

Areas from Calgary to Winnipeg are either abnormally dry or facing drought conditions, according to Agriculture Canada’s Canadian Drought Monitor. Producers over much of the Prairie region are anxious about pasture quality and sufficient feed supplies to get them through winter. An open fall in many areas has supported extended grazing on poor pastures, post-harvest […] Read more