摘要
Objective To study the safety and efficiency of different concentrations of collagen on canine prostate hyperplasia.Methods A total of 24 hybrid dogs were divided into 4 groups according to eh injection formula：hot agarose plus enzyme solution （A-0.05%,B-0.1%,C-0.15%） and hot agarose solution alone （control group D）.The prostates were observed and harvested with surrounding tissue at 4th week after treatment.Gross and microscopic examination were performed.
