Since Colostrx is made with whole bovine colostrum, it is naturally high in colostral fat, a sustainable energy source for newborn calves to get up and suckle. Colostral fat also helps calves thermoregulate and shiver to stay warm in severe weather. Your calves need antibodies from colostrum to stay strong and healthy within the first few critical weeks of life, but sometimes maternal colostrum isn't available, reliable or convenient. Easy to use! Can be mixed in 15 seconds.