Colostrum Bank By Patrick M. McCue, DVM, PhD, Diplomate American College of Theriogenologists An owner or farm manager generally does not know in advance which foal will need supplemental colostrum. An on-site supply of frozen colostrum can be critical for the health of a valuable neonate. The best colostrum donors are mares that have had one or more foals and are 4-15 years of age. Vaccination 4 to 6 weeks...