Phytase Studies-Horses

Mature horses were fed an experimental diet consisting of textured concentrate of rolled corn, oats and soybean meal fed in a 50:50 ratio with native grass hay. Phytase was added to the diets at 0, 300, 60 and 900 FTU/kg of basal ration. Results indicated no significant differences (P<0.05) in dry matter intake, fecal and urine output, dry matter and phosphorus digestibility between supplemental phytase treatments.

Patterson, D.P. and co-workers. 2002. Effects of varying levels of phytase supplementation on dry matter and phosphorus digestibility in horses fed a common textured ration. J. Equine Veterinary Sci. 22(10): 456-459.