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Heat Stress Model Keeps Cows Cool

Date:
March 28, 2008
Source:
US Department of Agriculture
Summary:
It's hard to relax if your cattle are stressed, so the ability to predict and avoid potential stressors is essential. Fortunately, an online model provides information to help cattle -- and producers -- keep their cool when temperatures rise.

A new computer model available on the Internet can help ranchers predict the heat stress threat level to their cattle.
Credit: Photo by Scott Bauer

It's hard to relax if your cattle are stressed, so the ability to predict and avoid potential stressors is essential.

Fortunately, an online model developed by scientists with the Agricultural Research Service (ARS) provides information to help cattle—and producers—keep their cool when temperatures rise.

For years, producers relied on the National Weather Service for livestock weather warnings. When that service was discontinued in the mid-1990s, many producers turned to university websites. The university warnings, like those they'd replaced, were based on temperature and humidity predictions, but did not account for other influential factors.

Elevated temperature is obviously the driving force behind dangerous heat levels, but other parameters—such as humidity, sun intensity and wind speed—are influential as well. The ARS model, developed by Tami M. Brown-Brandl and Roger Eigenberg at the agency's Roman L. Hruska U.S. Meat Animal Research Center in Clay Center, Neb., considers all four parameters in its calculations.

The model, which is updated twice daily, makes predictions for South Dakota, Nebraska, Iowa, Kansas, Missouri, Oklahoma, western Colorado and northern Texas. It analyzes weather forecast information, assesses the danger of incurring heat stress and displays that information as a color-coded map, which can be viewed at: http://www.ars.usda.gov/Main/docs.htm?docid=16750

Ranchers and other cattle managers can consult the map to gauge the heat threat level in their region. More than 200 visitors used this site during the critical heat stress months of July and August in 2007.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


Story Source:

The above story is based on materials provided by US Department of Agriculture. Note: Materials may be edited for content and length.


Cite This Page:

US Department of Agriculture. "Heat Stress Model Keeps Cows Cool." ScienceDaily. ScienceDaily, 28 March 2008. <www.sciencedaily.com/releases/2008/03/080321124203.htm>.
US Department of Agriculture. (2008, March 28). Heat Stress Model Keeps Cows Cool. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2008/03/080321124203.htm
US Department of Agriculture. "Heat Stress Model Keeps Cows Cool." ScienceDaily. www.sciencedaily.com/releases/2008/03/080321124203.htm (accessed October 23, 2014).

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