The Purina Electrolyte and Antioxidant Supplement for Poultry is designed to keep your flock hydrated and healthy during periods of heat and times of stress. This supplement is easy to use. Simply mix 1 packet of the electrolyte mix with a gallon of fresh water to help keep your birds active and lively. Make a fresh solution daily for best results. Use it alone or paired with the Purina Probiotic Supplement (sold separately). There are 3 easy-tear packets of electrolyte poultry supplement included to last you 3 days. Made in USA.