Manna Pro Colostro-fix Colostrum Supplement is a unique supplement with a combination of Colostrum and Serum as the Source of Globulin protein for best performance. Colostrum supplement to be fed to dairy and beef calves for the first 24 hours of life. This formula comes enriched with vitamins and minerals, perfect for your newborn. Comes in an easy to mix solution. 1lb.