Farm Animals

Pig Genetic Welfare: Selection for Robustness and Resilience

Genetic selection priorities in commercial pig breeds have historically traded welfare traits for production efficiency.

Key Facts

High lean growth genetics correlate with increased pork stress syndrome and sudden death
Selection for large litters creates small, weak piglets with higher mortality
Genetic diversity in commercial pig populations has decreased significantly
New genomic tools allow selection for resilience, temperament, and leg health

Welfare Considerations

The genetics of modern commercial pig breeds embed welfare trade-offs that management alone cannot fully overcome. Shifting selection priorities toward robustness, temperament, and health reduces baseline welfare costs for every pig born.

What You Can Do

Support breeding programmes that explicitly include welfare trait selection
Advocate for welfare index inclusion in national pig breed recording schemes
Choose pork from breeds with demonstrated welfare and robustness credentials