Use of phytase enzymes to optimise feed costs and performance of pigs

摘要

Phytase is now well established in all swine diets to utilise the phytate bound phosphorous in raw materials of plant origin such as cereal grains, oil seed meals and their by-products. Phytate is the primary storage form of phosphorous in plants. Intypical plant based feed ingredients the phytate bound phosphorous often exceeds two thirds of the total phosphorous (P) content (see Fig. 1). Due to the lack of endogenous phytase, pigs cannot utilise the phytate bound phosphorous and this valuable source of phosphorous is excreted into the environment where it can pose a problem, especially in areas with intensive agriculture.