Wet Droppings

During the past cycle we experienced the following: mucoid enteritis; disfunctional ceacum; contents of ceacum is watery and filled with bubbles in the feed passage; undigested feed particles in the small intestine; wet droppings due to liquid ceacal content.There were no abnormal mortallitys.The growth performance were very poor and the feed conversion were also very poor. This scenario started at a age of 25 days till slaughter on 34 days. My personal feeling is that there might be something wrong with the soya in the feed I am desperate for help.