IgG levels of all foals should be routinely measured when they are about 12 to 24 hours old.
Foals are born with no circulating antibodies (IgG) and must receive adequate antibodies from the mare's colostrum. Up to 25% of newborn foals have low IgG levels, placing them at high risk for infection, serious illness, or death.
Low IgG may result from premature lactation, poor suckling, malabsorption, or lowquality colostrum. The Immuno-Chek™ Foal IgG is a horse-side measurement test that offers information about foal’s IgG level.
Rapid identification of low IgG is critical for initiating early treatment in foals with insufficient circulating antibodies
Color intensity on Test Line is proportional to Foal IgG concentration.

Compare the relative intensities of the cassette lines to the Interpretation chart in the instructions.