ISOLATION AND IDENTIFICATION OF ESCHERICHIA COLI WITH K99 AND F_ TWO CILIUM ANTIGENS IN HEIFERS
ISOLATION AND IDENTIFICATION OF ESCHERICHIA COLI WITH K99 AND F_ TWO CILIUM ANTIGENS IN HEIFERS
育成牛K_(99) F_ 兼型大肠杆菌的分离鉴定
ISOLATION AND IDENTIFICATION OF ESCHERICHIA COLI WITH K99 AND F_ TWO CILIUM ANTIGENS IN HEIFERS
育成牛K_(99) F_ 兼型大肠杆菌的分离鉴定