Study on Digestibility of NaturaI Compound Mineral in Feed

The digestibility variations of energy, protein and other nutrient components in feed which had been mixed with natural compound mineral was determined via throughout a digestive trial by using 6 growing boars from the progenies of 3-strain hybridization.The feed was labelled by Cr2O3 to monitor its passing duration through the digestive channel.The results showed that,the digestibility of crude protein of trial group increased 5.82 percentage(79.50%vs。 73.68%,P0.05):the digestibilities of general energy.crude fibre and Ca increased 1.44 percentage (71.25%vs.69.81%),0.56 percentage(40.09%vs.39.53%)and 1.11 percentage(47.48% vs.46.37%)respectively(p0.05):the digestibility of P decreased 1.13 percentage(54.81% vs.55.94%.P0.05) to compare with control group.The duration when feed passed through di-gestive channel of trial group was averagely 23 minutes Ionger than that of control group.