Contains optimal levels of beneficial microbes necessary to jump-start a calf’s stalled digestive system. Administer when calf is three days old to aid in the transition from colostrum to whole milk or milk replacer. Administer one (1) bolus per day for three (3) days beginning on the first day of weaning. Also administer during any management-induced stress such as dehorning, shipping or moving, weaning, vaccinations and antibiotic treatment.