Farm Animal Welfare

Pig Breeding Welfare Hyper-Prolificacy

Selection for very large litter sizes in pigs has created welfare problems for both sows and piglets that require breeding objective reform.

Key Facts

Average litter size has increased from 10 to 17+ in hyper-prolific breeds over 40 years
Large litters produce more low birth-weight piglets with reduced survival and welfare
Sow longevity has declined as metabolic demands of hyper-prolificacy increase
Some genetics companies are now offering 'welfare-optimized' lines with smaller litter sizes
Balanced breeding objectives that include welfare traits alongside litter size are emerging

Welfare Considerations

Breeding for maximum litter size has created a welfare paradox where more piglets are born but more suffer and die. Breeding reform that balances productivity with welfare creates genuinely better outcomes for sows and piglets.

What You Can Do

Support pig breeding programs with explicit welfare traits in selection indices
Advocate for litter size limits in welfare certification where evidence supports them
Choose pork from producers committed to welfare-conscious breeding objectives