Farm Animal Welfare

Dairy Cow Longevity and Welfare Economics

Short productive lives in dairy cows reflect welfare problems that also have economic costs, making longevity a convergent welfare and productivity target.

Key Facts

Average dairy cow lifespan has declined from 5-6 lactations to 2.5-3 in many herds
Culling for lameness, mastitis, and infertility often occurs before peak production years
Longevity is heritable and genetic selection for it reduces welfare problems over time
Economic modelling shows longer-lived cows are more profitable despite slower early throughput
Consumer surveys show strong preference for dairy from long-lived cows

Welfare Considerations

Short dairy cow lifespans reflect high disease burdens and welfare compromises that are economically and ethically suboptimal. Selecting for and rewarding longevity aligns welfare improvement with economic interest in a genuinely convergent way.

What You Can Do

Support dairy certification schemes that track and reward herd longevity
Choose dairy products from farms with transparent longevity and health records
Advocate for longevity as a key metric in dairy breeding program evaluation