Results Balantidium coli were detected on all the 12 farms; the positive rate for the farm was 100%;

结果12个猪场全部都检测到了结肠小袋纤毛虫，场阳性率为100%；

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Results Balantidium coli were detected on all the 12 farms; the positive rate for the farm was 100%;

结果12个猪场全部都检测到了结肠小袋纤毛虫，场阳性率为100%；

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