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Transmission of Salmonella enteritidis in pairs of layer hens
【作 者】
：
【机 构】
：
Department of Farm Animal Health,Faculty of Veterinary Medicine.Utrecht University,Yalelaan 7,3584 C
【出 处】
：
15th World Veterinary Poultry Congress(第十五届禽病大会)
【发表日期】
：
2007年1期
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