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Extreme Cold Hurts Cattle Reproduction

Extreme Cold Hurts Cattle Reproduction
The record-breaking arctic cold experienced throughout the region this winter could mean less productive breeding among beef cattle this spring.

The subzero temperatures and persistent winds that pushed wind chills into the 30 to 50 degrees below zero range, affecting a large swath of the country this winter, also raised the potential for scrotal frostbite in bulls.

While normal winter conditions typically don't result in scrotal frostbite in breeding bulls, the extremely cold, harsh and prolonged weather experienced this year increases its likelihood, and that could result in the animals' infertility for the upcoming breeding season, says Steve Boyles, an Ohio State University Extension beef cattle specialist.

Extreme Cold Hurts Cattle Reproduction

The issue could have a significant financial impact for producers if the bulls aren't able to be used to impregnate cows to produce calves, Boyles says.

"It's a huge economic issue for producers," he says. "Some may not realize the potential impact this harsh winter weather has on reproduction now because we tend to think about it during the summer when the bull is supposed to be out there working.

"But we need to be thinking about it now because reproduction is really one of the most important aspects for cow-calf producers."

While bull infertility is of significant concern for producers during any time period, the issue takes on even more seriousness now thanks to record cattle prices. Those are due to the shrinking U.S. herd, which is now at a 63-year low, according to the U.S. Department of Agriculture. The nation's cattle herd declined to 87.7 million head as of January, according to USDA.

In fact, beef output nationwide is forecast to fall 5.3% this year to 24.35 billion pounds, the government agency said, making it the lowest output since 1994. That translates into higher costs for consumers who can now expect to pay upwards of 3% more for beef this year, USDA said in its February red-meat production forecast.

The shrinking U.S. cattle herd is the result of ongoing consequences of the 2012 drought and the current drought in many states that has resulted in higher feed costs, leading to a significant financial drag for producers.

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This means that herd expansion will be slow on a national level for the next several years, Boyles says.

"Cattle prices will remain high because of the low cattle numbers across the county," he says. "So if cows aren't getting pregnant and producing calves, that is much more of an economic impact for producers now than in previous years when cattle prices weren't as high.

"So producers need to ensure they take care of their herds from an animal welfare standpoint because they need to ensure that their herds can achieve or maintain high reproduction rates."

Producers can help prevent bull infertility by making sure they protect the animals from the wind, including ensuring the bulls have access to windbreaks and good bedding during bad weather, which can help prevent testicle freezing.

"Make sure all the animals can get out of the wind if you maintain multiple bulls," Boyles says. "A wind break fence might be considered if some bulls tend to kick other bulls out of the main wind protection area or barn.

TAGS: USDA Extension
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