Bovine respiratory disease (BRD) is highly prevalent amongst dairy and beef heifers. It is the main cause of death in both Holstein dairy calves over 30 days of age and in milk-fed calves. Early diagnosis of BRD must be a priority for the farm and veterinarian. When identified quickly, the risks of irreversible lung damage and long-term effects are reduced, therapeutic success of antimicrobials is maximized, antimicrobial resistance is minimized and recurrence rates are lowered.

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