Low phytate nutrition - superdosing phytase

摘要

Historically, phytases have been used in the monogastric feed sector as an enzyme to break down phytate, releasing phosphorus (P) to the animal that was previously unavailable. In recent years however, the phytase application in feeds has changed to also look at the potential of using high doses of phytase, 'superdosing'to remove phytate as an anti-nutrient and produce a low phytate nutrition' feed programme. Phytate is the main form of P found in plants and is present at levels between 5 and 50 g/kg which contributes 1.4 to 14g/kg of phytate P. Wheat and rice bran are examples of ingredients high in phytate. Rapeseed and soybean meals normally have higher levels of phytate than cereals.