甘肃省规模化养猪场疫病防制存在的问题与对策甘肅省規模化養豬場疫病防製存在的問題與對策 감숙성규모화양저장역병방제존재적문제여대책 Problems and countermeasures in course of loemia's being prevented and controlled on intensivism pig farms in Gansu province of China
万方数据
中国兽医科技中國獸醫科技중국수의과기 CHINESE JOURNAL OF VETERINARY SCIENCE AND TECHNOLOGY 2002年11期41-42,共2页
