Healthy mares with high immunoglobulin content in their colostrum can be used as colostrum donors. Mares who deliver dead foals or who have foals die shortly after birth can be milked of all of their colostrum. Furthermore, healthy mares with foals also can have about 200 ccs of colostrum milked and subsequently stored and not risk depleting the foal's supply. Colostrum can be frozen and stored for not more than two years. The best treatment for foals at risk for FPT or with confirmed FPT or PFPT is equine colostrum.
Normal mares produce approximately two liters of colostrum.
If equine colostrum is not available, bovine colostrum can be used. Bovine colostrum is best when given fresh, but frozen bovine colostrum can be used. Foals with PFPT might require less. Lyophilized equine IgG is available commercially and is marketed as Lyphomune7. Seramune7 is a concentrated serum product that also is commercially available.