Cattle Mastitis Prevention and Welfare

Mastitis is the most costly and one of the most welfare-significant diseases in dairy cattle, with prevention through hygiene, nutrition and management far superior to treatment.

Key Facts

Mastitis affects approximately 25-35% of dairy cows annually in typical UK herds
Clinical mastitis causes severe pain — swollen, hot, painful quarters and systemic illness in severe cases
Subclinical mastitis is more prevalent and causes chronic low-level discomfort without obvious signs
Teat end condition, milking machine function and cow immunity all influence mastitis risk
Dry cow therapy — antibiotic treatment at drying off — prevents new infections during the dry period
Mastitis prevention through hygiene, nutrition and housing improvements produces measurably lower incidence

Welfare Considerations

Mastitis causes genuine suffering across its clinical and subclinical presentations. Clinical cases cause acute pain requiring immediate veterinary treatment; subclinical cases cause chronic low-grade discomfort that accumulated over lactation represents a significant welfare burden. Prevention through optimal milking hygiene, cow immunity support and housing conditions that minimise environmental pathogen exposure is both the welfare-superior and economically superior approach. Herds achieving consistently low mastitis rates do so through systematic prevention rather than reliance on treatment.

What You Can Do

Support dairy farms with documented low mastitis cell counts and clinical incidence rates
Advocate for mastitis monitoring to be mandatory in dairy welfare certification schemes
Choose dairy products from farms with certified lower mastitis prevalence
Support research into mastitis prevention innovations including selective dry cow therapy
Engage with dairy veterinary organisations promoting welfare-based mastitis prevention programmes