No better product on the market and very economical to use. One 8 oz. package will make approximately 80 gallons of drinking water. Make fresh everyday. Used as directed and over a period of time, you will notice a smooth, glossy feather, tight droppings, bird with more energy, and eagerness to fly. Puts birds in great condition, ready to race, perform or show. You should expect better fertility, more disease resistance and a better moult. 1/2 teaspoon to 1 gallon of drinking water. Compare cost and ingredients. Youll find nothing better. Ultimate Vitamin 8 oz.