辽宁省部分地区禽大肠杆菌血清型分布及禽大肠杆菌病防治措施初探
요녕성부분지구금대장간균혈청형분포급금대장간균병방치조시초탐
Distribution of serum type of poultry's colon bacillus,prevention and treatment of poultry's colibacillosis in some areas of Liaoning
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