BRD symptoms and risk factors

BRD symptoms

  • Decreased feed intake
  • Cough
  • Fever 39.5 °C - 42 °C
  • Increased respiratory rate
  • Nasal and ocular discharge
  • Depression


Factors that increase the risk of BRD


There are more cases of BRD in autumn and during the winter.


Crowded conditions, inadequate ventilation, dusty or wet bedding can all increase the risk of BRD.

Stress to animals

Conditions stressful to cattle including weaning, transportation debudding/dehorning and castration can increase BRD susceptibility.

Mixing cattle

Commingling animals from different origins, mixing different age groups,and segregating sick from healthy animals, can contribute to a higher BRD risk.

Type of cattle

Young animals, males and certain breeds are more susceptible to the disease.

feedlot feeding