Using Progressive Phytase Regimens for Broiler Performance and Yields

Phytase is traditionally supplemented into broiler diets between 300 and 600 phytase units (FTU)/kg. This supplementation releases phosphorus (P) from phytate in feed ingredients. The obvious benefit is the increase in available nutrients. Another benefit, when phytase is added to corn-soybean meal based diets, the production costs are reduced, leg abnormalities are minimized and bird growth may be enhanced. To break down the phytate, in the absence of phytase, broilers hypersecrete pepsin and hydrochloric acid to improve digestibility and then in turn secrete sodium bicarbonate (NaHCO3) and mucin, a gel-like secretion, to protect the intestinal tract lining (Cowieson, et al., 2004).