Effect of Raw and Extruded Propionic Acid-Treated Field Beans on Energy and Crude Protein Digestibility (In-Vitro and In-Vivo), Growth and Carcass Quality in Grow-Finisher Pigs

生蚕豆和经丙酸挤压处理的蚕豆对生长育肥猪能量和粗蛋白消化率（体内和体外）、生长和胴体品质的影响