ZooLac Probird, contains vinasse, fragments of yeast cell walls, purified extract of yeast cell walls, electrolytes and dextrose. ZooLac Probird is given to birds or poultry constantly or during periods where it is accessed that there is a particular need for supplementation of the physiological nutrition. ZooLac Probird is soluble in water. ZooLac Probird is administered in the drinking water with a dosing of 1 gram per liter of water. Fresh solution is prepared daily.