F1RST START 100 is used to aid in the treatment of failure of passive transfer of immunity with 100 grams of bovine origin IgG in a 500 gram feeding. You can be assured that every batch of F1RST START 100 receives the CFIA Veterinary Biologics Section’s approval. Use as a bovine immunoglobulin source for a full colostrum replacer for beef and dairy calves. Store below 24°C.