This product is a blend of Micro-encapsulated Probiotics, Vitamins, Electrolytes and Enzyme for fowl. Providing Hen Boost everyday in fresh, clean, cool water helps maintain a normal intestinal microflora by competitive exclusion and antagonism. The probiotics also help stimulate the immune system. The addition of enzymes help improve feed intake and digestion. Vitamins and Electrolytes help balance nutritional needs, and help keep the bird hydrated. Made in the USA.