Dealing with Hot Weather in Grazing Systems

Even in Wisconsin, summer days can be hot enough to cause heat stress for cows. The thermo-neutral range for cattle, in which they do not need to expend energy to keep their body temperature stable, is about 41°F to 77°F. When the temperature is above 77°F, especially with high humidity, cattle can have reduced production, particularly if nighttime temperatures stay over 70˚F.

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Dry Cow Heat Stress Management

Managing heat stress in dry cows is just as important as it is for lactating cows because it determines the amount of productivity and success a cow will have during her lactation. It can also influence the future success of the daughters and granddaughters of the dry cow.

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Animal Handling During Heat Stress

Aerica Bjurstrom | Agriculture Educator | Extension Kewaunee County Sarah Grotjan | Agriculture Educator | Extension Outagamie County Jennifer Van Os | Assistant Professor and Extension Specialist | UW-Madison CALS Amanda Young | Agriculture Educator | Extension Dodge County Printable pdf version As summer temperatures rise, dairy cows are at greater risk for heat stress. […]

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