Heat Stress in Cattle

As I’ve mentioned before, my family raises cattle inIowa. During the heat-wave going through theMidwest, my family unfortunately has experienced some loss of cattle due to the heat. It is difficult to manage heat stress in cattle, but according toIowa State University, these five tips will help cattle farmers.

  • Plan ahead. After cattle get hot, it’s too late to prevent problems.
  • Don’t work cattle when it is hot. Finish working cattle before 9 to 10 a.m. in summer, and remember that during a heat wave it’s best to not work cattle at all.
  • Provide plenty of fresh, clean water. When it’s hot and humid, consuming water is the only way cattle can cool down. Make sure the water flow is sufficient to keep tanks full, and ensure there’s enough space at water tanks (3 inches linear space per head). Introduce new water tanks before a heat event occurs so cattle know where they are.
  • Feed 70 percent of the ration in the afternoon. Heat from fermentation in the rumen is primary source of heat for cattle. When cattle are fed in the morning, peak rumen temperature production occurs during the heat of day when they can’t get rid of it. By feeding 70 percent of the ration in late afternoon, rumen heat production occurs when it is cooler.
  • Provide ventilation, shade and/or sprinklers. Environmental temperatures compound the heat load for cattle during a heat wave. Remove objects that are obstructing natural air movement. Indoor cattle will benefit from shade provided by the building as long as ventilation is good. Outdoor cattle will benefit from sprinklers to cool them off. Make sure cattle are used to sprinklers before employing them during a heat wave.

Please keep farmers in your thoughts this summer. Nothing is more difficult than loosing animals due to environmental conditions, while doing everything you can think of to lessen the severity of the situation. Beef farmers need your support this summer, so make sure that you thank a farmer for all of the daily struggles they encounter to put food on our tables.

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