Farm Animal Welfare

Pig Colostrum Quality and Passive Transfer

Colostrum quality varies significantly between sows and proper testing and supplementation prevents immune failures.

Key Facts

Colostrum immunoglobulin concentration can be measured with a Brix refractometer
Sows with more than 5 litters typically have lower IgG concentrations
Colostrum can be collected and frozen for use with future litters
First-parity sow colostrum often has higher IgG but lower yield
Pooled colostrum should be tested for pathogens before supplementary use

Welfare Considerations

Colostrum quality variation between sows means that some litters are poorly protected despite apparently adequate intake. Testing colostrum quality and supplementing inadequate supplies ensures that immune protection is based on actual antibody provision rather than assumed intake. This targeted approach maximises welfare benefit from colostrum management investments.

What You Can Do

Support colostrum quality testing training for pig farm staff
Advocate for colostrum banking requirements in pig welfare codes
Share colostrum quality management resources with producers