A bacterium, virus, fungus or protozoan causing disease.

引起疾病的细菌、病毒、真菌、或原生动物。

Protozoan is one of the food organ isms for fish in Rivers.

原生动物是江河鱼类的生物饵料组成之一。

Rabbit coccidian is a kind of parasitic protozoan of Eimeria.

兔球虫属于艾美耳科的寄生性原虫。

At this concentration, control of protozoan parasites can be achieved.

在此浓度，控制原生动物寄生虫是可以实现的。

The effects of inoculations of AM and protozoan on peanuts was studied.

通过AM真菌和原生动物对花生进行双接种，研究他们之间的相互作用。