Ringworm in Cattle

Ringworm in cattle is a dermatophyte infection of skin and hair. Control of ringworm is important as it causes not only production losses but can also be transmitted to people working with infected cattle.

Production effects

The economic costs of ringworm are:

  • Scarring of hides: Ringworm damage is readily visible on leather after tanning. Even healed skin lesions reappear after tanning.
  • Reduced growth rate: In a study done in Switzerland, bull calves vaccinated against Ringworm had a higher growth rate than a non-vaccinated control group. Reports have shown that non vaccinated and infected animals take longer to reach final slaughter-weight.
  • Loss of stock: Severely affected animals may have to be euthanized for welfare reasons.
ringworm

A calf with severe ringworm infection