The isolates virulent H 4 , H 2, Y 3 were positive by the use of IBD strips or AGP.

  • 分离强毒H4 、 H2 、 Y3试纸及琼扩对照均为阳性.法氏囊样品测定结果显示.

  • 互联网 2020-04-14 22:36:02

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