Farm Animals

Pig Welfare: Piglet Iron Supplementation

Iron deficiency anaemia in pre-weaned piglets is a welfare concern in indoor production, requiring supplementation due to the absence of natural soil iron access.

Key Facts

Sow milk is low in iron and piglets are born with limited iron stores
Piglets in outdoor systems access soil iron naturally, but indoor piglets develop anaemia without supplementation
Intramuscular iron dextran injection at 3-5 days of age is the standard intervention
Oral iron supplementation is an alternative being developed to avoid the welfare cost of injection

Welfare Considerations

Iron deficiency anaemia causes lethargy, pale mucous membranes, and immune suppression in affected piglets. It is entirely preventable through supplementation. The welfare cost of intramuscular injection is minor compared to the welfare benefit, but the development of effective oral alternatives is a welcome welfare refinement.

What You Can Do

Support pork producers demonstrating systematic iron supplementation protocols
Advocate for iron supplementation to be a mandatory welfare standard in indoor pig production
Engage with research on oral iron delivery alternatives for piglet welfare