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1.Investigative results ofall farms raising foxes showed infection rate of fox groups was 0.9-21.9%, resulting inabortion rate was 1.5-14.7%,empty rate was 3.2-47.5%. Serious harm was revealedto the disease.
场感染率为0.9—21.9%,导致流产率1.5—14.7%,空怀率3.2—47.5%,揭示了本的严重危害性.收藏指正
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