Managing Heat Stress Episodes in Confined Cattle.

Abstract

Feedlot cattle consuming large amounts of feed and gaining weight rapidly generate significant amounts of metabolic heat. In summer, failure to dissipate this heat leads to heat accumulation and heat stress. Respiratory rates, panting scores, and behavioral changes are useful indicators of heat stress in cattle. Ceasing cattle movement, providing supplementary water tanks in the pens, cooling the pen surface, and manipulation of nutrition and feeding management should be considered to mitigate the risk and manage a heat stress crisis. Removing manure from the pens and provisions of shade has been found to be beneficial for cattle exposed to hot climates.