A vermifugal experiment of Ivermectin( made in China) applied the selected160 heads of Tan Sheep of Ningxia that were naturally infected by eelworm. 选用自然感染胃肠道线虫的宁夏滩羊160只进行国产伊维菌素驱虫试验。
eelworm
[ noun ] any of various small free-living plant-parasitic roundworms <noun.animal>