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Egg production reduce and paralysis by Dermanyssus gallinae in the egg laying farm in marand in East
【机 构】
：
Parasitology Section,Northwest Branch of Razi Vaccine and Serum Research Institute,Marand,Iran
【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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