Effect of Grain Source and Dietary Level of Oat Hulls on Phosphorus and Calcium Utilization in the Growing Pig

Three metabolism trials were conducted to determine the effect of grain source and dietary level of oat hulls on dry matter digestibility, P and Ca retention and intestinal phytase activity of growing pigs. Twenty-four crossbred pigs (39 kg)were used. Dry matter digestibilities of corn-based diets were greater (P\u3c.01) than grain sorghum-based diets (74.7 vs 63.5%). Diets containing 10% oat hulls had lower (P\u3c.01) dry matter digestibilities than diets containing no oat hulls (64.0 vs 74.2%)