Abstract : To find out the death reason of the yaks in Qinglongsi village, Nanxing town, Feng city, Shaanxi Province, pathologic observation and bacterial diagnosis are performed for dead yaks.
⑴The nervous system: Microscopically ①Cerebral cortex nerve undergoes degeneration and necrosis in variable levels; ②nerve cell enlarge, and nervephilic phenomenon and satellite phenomenon appear; ③cerebral capillary shows as hyperemia, and perivascular space obviously enlarge; ④micro-thrombus, which is fo...
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