Isolation and evaluation of nephropathogenic avian infectious bronchitis virus and study on usage of local strain vaccine黄廷贺, 郝振国, 尹广东2-4
Composition of ligustrum lucidum ——study on astragalus membranaceus to prevent the infective bronchitis of chickens吴长德, 方永辉4-5
Finally analysed results to the descendants of kinds bulls of Li - Muzan in the southern areas of Liao Ning杨广林, 祁茂彬, 张丽君, 陈佳涛, 刘福奎, 高文波6-7