A“postcocious”line of *** was selected by repeated passages of oocysts that werelately collected from faeces of previously infected *** with the parent strain,the“postcocious”line had the following characteristics...
详细信息
A“postcocious”line of *** was selected by repeated passages of oocysts that werelately collected from faeces of previously infected *** with the parent strain,the“postcocious”line had the following characteristics:the peak production of oocysts was two days later;the dimension of eleven endogenous development stages was larger,the reproductive capacity and theimmunogenicity was higher.
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