Specially formulated to keep calves healthy and ensure optimum growth. Contain Lactobacillus acidophilus, Streptococcus faecium and other milk acid bacteria. Contain Organic selenium Act as Pre-biotic. Stimulates the immune system. Blocks colonization of pathogen and hunger them of sugars needed for further growth. Act as Pro-biotic. Produce three strong antibiotics. Contain Selenium which is essential for good thyroid hormone function. Thyroid plays a huge part in growth and cold resistance. Selenium is a very important anti-oxidant. Source of energy. Works well for the use of prevention of diarrhea. Calf Booster shortens the period of feeding expensive milk which means more money in your product. Low doses needed. 2.5g per calf 2 times per day. Mix with milk or water.