To complicate the matter,undigested phytate in poultry and hog manure has the potential to foul up the environment when naturally occurring microbes hydrolyze phytate to release inorganic orthophosphate into the groundwater. Harmful
algal bloom (HAB) in the Chesapeake Bay followed by a fish killed in the 1990s had drawn attention from environmentalists [4]. The need for phytase supplementation of the poultry and hog feed was offered as a possible
solution to cut down phosphate pollution of Americas waterways [5].