1. Residual phytase activity (% of initial) for OptiPhos
2000-PF (coated; Phytex LLC, Sheridan, IN) and OptiPhos 2000-M
(uncoated; Phytex LLC) as affected by storage temperature [freezer
(−18°C), refrigerator (5°C), room temperature (23°C), and controlled
environment chamber (37°C and 75% humidity)] and time (30 to 120
d). Each data point (least squares means ± 2.32) is the mean of 3
observations.