Researchers Confirm IgG Values for Predicting Foal Survival
It’s foaling season again, which means it’s also time to watch newborns for signs of failure of passive transfer. This condition occurs when the foal does not ingest or absorb a sufficient quantity or quality of colostrum (the mare’s first milk), which results in a reduced ability to fight disease.

Foals are born without infection-fighting proteins called antibodies (or immunoglobulin G [IgG]) circulating in the blood stream. The mare’s colostrum contains these IgGs and other immunoglobulins to help protect foals from developing life-threatening infections. But how do you know if your foal has obtained enough IgG?

“Even th

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