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4 quick ways to warm a newborn calf

Ilja Enger-Tsizikov/Getty images Newborn calf
DRY SPOT: Getting newborn calves out of the winter elements and into a dry, warm place will help stave off hypothermia.
Your truck may be the best place for a calf in freezing temperatures.

When newborn calves are exposed to freezing temperatures, it can create cold stress in them. Warming them up quickly can prevent hypothermia.

“Adult cattle are pretty robust; they have a huge, functioning rumen that really acts as their heating core during the cold winter months,” says A.J. Tarpoff, Kansas State University Research and Extension beef veterinarian. “But the newborn calves are much more vulnerable to hypothermia and cold stress.”

Take calf’s temp

Tarpoff says a calf's internal body temperature should be between 101 and 102 degrees F, and trouble begins to arrive when body temperature drops below that.

“The body starts to shunt blood away from the extremities –— the skin, lower legs, ears, tail –— Their body doesn’t pump as much blood to those areas,” Tarpoff says. “The body is trying to defend itself, and the way it maintains its core temperature is to pump warm blood to the brain and other vital organs. They will scavenge their own body, so to speak, to hold that warmer blood in the core of the body.”

Hypothermia begins as the body temperature dips below 100 degrees. Below 95 degrees, organs begin cooling, and when temperatures dip into the mid-80s, Tarpoff says the animal may be comatose.

Tarpoff says producers need to take a rectal temperature to know how serious they need to get with helping a calf that has been exposed to the cold. Then, the calf needs to be warmed up. He offers a few quick solutions for warming young calves:

Use your vehicle. Pull the calf inside the truck onto the floorboard heater. It may take up to an hour for the calf to warm up. Once it’s warmed up, give it colostrum.

Take it inside. If you have nearby access to a barn, bring the calf into the shop near heating lights, and wrap it in warm blankets. Dry the calf before starting the warming process. Be careful once it begins moving around that the calf doesn’t knock over the heating lights and cause a fire.

Put the calf in a hot box. Some commercial boxes are made of plastic, though some producers have made their own hot boxes. Use lights or warm air fans to promote heating.

Warm water immersion. Bring the calf inside and immerse it in a tub of warm water, just a little over 100 degrees. Do not use hot water, as this can cause heart failure due to cold shock. This is a labor-intensive technique since you must continuously add warm water.

Time for the vet

If these initial techniques aren’t working, Tarpoff says producers should contact their veterinarian, or take the calf to the veterinarian’s office.

“A veterinarian may be able to use some different techniques –— such as a warm saline IV which administers warm fluid to the inside of veins, which heats the core of the animal at a quicker rate,” Tarpoff says.

Treatments aside, preventing hypothermia and cold stress is the preferred route to keep calves safe.

“Make sure cows have the energy and protein they need to produce good colostrum and quality milk for their calves,” he adds. “On top of that, wind is an absolute killer. Make sure you have provided windbreaks or some kind of barrier to help animals get out of the elements; and provide wheat straw, baled cornstalk or something that provides a barrier to the cold ground.”

For further help, producers are encouraged to contact their local K-State Research and Extension agent.

Source: K-State Research and Extension is solely responsible for the information provided and is wholly owned by the source. Informa Business Media and all its subsidiaries are not responsible for any of the content contained in this information asset.
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