Pig Welfare and Neonatal Immunity

Neonatal pig immunity depends critically on colostrum intake, with failure of passive transfer leading to fatal infectious disease in the first weeks of life.

Key Facts

Piglet immunity depends entirely on colostrum antibodies in the first 24 hours of life
Gut closure prevents absorption after approximately 24 hours regardless of colostrum availability
Each piglet requires 200-300ml of colostrum in its first 24 hours for adequate protection
Hypothermic piglets absorb colostrum less efficiently even when it is available
Frozen stored colostrum provides backup for piglets unable to suckle adequately

Welfare Considerations

Neonatal immunity welfare requires active management rather than passive assumption that piglets will receive adequate colostrum. Large litter sizes, hypothermia, and mismothering all compromise colostrum intake. The welfare consequences of failure are severe and begin within days - susceptible piglets develop fatal diarrhoea, meningitis, and septicaemia from organisms that vaccinated, colostrum-protected piglets resist. Farrowing supervision that ensures colostrum intake is a welfare imperative.

What You Can Do

Support pig welfare standards requiring farrowing supervision protocols for colostrum management
Advocate for maximum litter size guidelines that allow all piglets adequate colostrum access
Choose pork from farms with documented low neonatal mortality rates