Calf scours


Scours in young calves is caused by an interaction between the environment, the health of the calf and the presence of disease causing agents (pathogens). Common pathogens that cause calf scours include bacteria, viruses and protozoa.

Conditions when calf scours are likely to occur

Identifying and diagnosing calf scours

Exposure to the pathogens that cause calf scours is a normal part of 'growing-up' for calves, and most farms will have a have a few calves that have sticky white or yellow diarrhoea around their tail.

Diagnosis of the cause of calf scours will require assistance from a veterinarian. Knowing the specific cause of calf scours allows specific prevention strategies and treatment protocols to be put in place.

Prevention strategies for calf scours

  • Developing and implementing a farm biosecurity plan.
  • Minimising contact between young calves and potential sources of infection.
  • Maximising colostrum intake, calf welfare and nutrition during the first six weeks of life.
  • Avoiding the introduction of new calf scours pathogens into the herd.


More information


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