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Content by Russ Daly

A close shot of a black and red cow's face. A blurred white cow's head is in the foreground.

Lingering Health Effects in Cows and Bulls Following a Harsh Winter and Spring

While mortality directly due to harsh winter weather is much more likely in calves rather than adult cattle, older animals can be affected too, and some of those effects might linger into the days of better weather and warmer temperatures.

A newborn calf with its mother in a snowy field

Will Health Effects Linger in Beef Calves Following Harsh Spring Weather?

Beef herds calving in late winter or early spring flirt with disaster annually when it comes to bitter weather conditions. It’s a rare year when a prolonged cold snap or snowstorm doesn’t occur during this critical period. In the throes of those weather conditions, calf health and even survival can be directly affected.

veterinarian using a stethoscope on a horse

Another Piece of the Puzzle? Understanding South Dakota Veterinarian's Response to the Opioid Epidemic

Researchers at South Dakota State University (SDSU) wanted to understand the extent of this problem in South Dakota in order to better prepare veterinary clinics to deal with this epidemic.

two white pigs with pink ears and noses.

What Would African Swine Fever Look Like if it Hit the US?

The incursion and expansion of African Swine Fever (ASF) into China has raised concerns among producers and regulatory officials about the threat the disease may pose to the U.S. swine industry.

small group of mixed calves

Does Cold Weather Contribute to Pneumonia in Calves?

Prolonged winter cold has some fairly obvious effects on cattle of all ages.

Producer approaching a young dairy calf.

How did a Poultry Germ Change to Cause Severe Disease in Calves and People?

In 2015, a specific strain of a germ called Salmonella heidelberg made 56 people sick in 15 different states.

Dairy cattle feeding on silage.

Keeping the Dairy Cow Healthy Means Keeping Her Gut Healthy

While we usually think of a cow’s gut simply as the organ system responsible for digestion and absorption of nutrients, it also plays other critical roles. Essentially a long tube from the mouth to rectum, open to the outside world, the digestive tract is the most substantial interface between the cow’s external environment and her body.

herd of beef cattle grazing in a pasture

Pre-weaning Pneumonia in South Dakota Beef Herd: A Persistent Problem, Suddenly Gone

This case report describes a southeastern South Dakota cow-calf herd’s experiences with pre-weaning pneumonia. Unlike many beef herds that experience pneumonia in calves on pasture, this herd’s problems were consistent year after year: widespread calf illness was documented in each of 6 consecutive summers. Anecdotally at least, the occurrence of pre-weaning pneumonia in beef herds is more likely to be sporadic and unpredictable from year to year. This herd’s persistent problems were followed by a year in which, after a change in calf vaccination protocol (informed by herd diagnostics), very little pre-weaning pneumonia was observed.

Flock of mosquitoes in front of sunset.

West Nile in South Dakota: Expect Cases Into Early Fall

While it’s true that in South Dakota most West Nile Virus cases occur during August, new human infections are detected well into September in most years.

A small group of cattle grazing in a green pasture.

Anaplasmosis: Is it a problem in the Northern Plains?

Cattle producers have been hearing more and more about a disease called anaplasmosis. This disease recently appears to have become more common in areas not previously affected. The disease is typically associated with cattle herds in warmer areas of the country, but is it ever a problem up here on the Northern Plains?