Livestock

Cryptosporidiosis in Calves: Welfare and Control

Managing Cryptosporidium infection in young calves to protect their welfare.

Key Facts

Cryptosporidium parvum causes profuse watery diarrhoea in calves under 3 weeks
Zoonotic — poses risk to farm workers, especially children
No licensed treatment exists in the UK — management is supportive
Environmental persistence means hygiene and clean bedding are critical

Welfare Considerations

Cryptosporidiosis causes severe dehydration and welfare compromise in neonatal calves. Mortality without supportive care is high. Welfare-focused management includes rapid oral rehydration therapy, clean dry bedding, adequate colostrum, and good calving hygiene. Halofuginone reduces oocyst shedding and severity when used prophylactically.

What You Can Do

Prioritise colostrum management — adequate intake reduces disease severity
Implement thorough calving pen hygiene between batches
Use oral electrolyte therapy promptly for scouring calves