Dairy Cow Longevity and the Welfare Cost of Early Culling

Modern dairy cows are culled at an average of 2-3 lactations despite potential lifespans of 20 years, with poor longevity indicating systemic welfare failure.

Key Facts

Average productive life of dairy cows in intensive systems is under 3 years of milking before culling
Primary culling reasons include lameness, mastitis, poor fertility and low milk production
These conditions are largely preventable through better nutrition, housing and herd management
Genetic selection for maximum milk yield has compromised metabolic health and longevity
Cows with longer productive lives — 6+ lactations — show lower disease burden and better welfare
Some Nordic countries achieve average productive lives of 4+ lactations through system design

Welfare Considerations

Short productive lives in dairy cows are both a symptom and a cause of poor welfare. The health problems that lead to early culling — lameness, mastitis and metabolic disease — represent periods of significant suffering before the animal is removed from the herd. High culling rates normalise chronic disease as an acceptable cost of production. Systems optimised for longevity tend to produce healthier, less-suffering cows and are increasingly recognised as economically as well as ethically superior.

What You Can Do

Support dairy farms and certification schemes that track and reward good cow longevity
Choose dairy products from farms with documented low lameness and mastitis rates
Advocate for longevity metrics to be included in dairy welfare assessment schemes
Support genetic selection programmes prioritising health traits alongside production
Engage with dairy industry bodies about the welfare and economic case for improving cow longevity