Contains Probiotics, Vitamins and Electrolytes to aid in the health of hatchlings. Mix with fresh clean water everyday for the first 8 weeks. Chick Boost™ introduces beneficial bacteria to the crop which assist the chick in developing a positive bacteria culture in its digestive tract. Commercially hatched chicks are raised in a clean enviroment and are not exposed to natural flora found in the hens digestive tract. Because of HCl gastric secreation which starts at day 18 of incubation, a newborn chick is at high risk for disease. More than any other animal chicks should be provided beneficial bacteria right after birth.