动物医学进展2018，Vol.39Issue(3)：40-44,5.
大型艾美耳球虫生物学特性研究
Study on Biological Characteristics of Eimeria magna
摘要
Abstract
To master the biological characteristics of Eimeria magna,this study was performed to study prepatent period,pathogenicity,immunongenicity,drug sensitivity of original strain of Eimeria magna.The results showed that prepatent period of the original strain of Eimeria magna was 168 h,the period of spor-ulation was 37 h-42 h.In the pathogenicity test,the patent period and peak excreition was consistent at dif-ferent doses of inoculation oocysts,but oocyst output was not the same.The maximum oocyst output was in group 5×103oocysts inoculated.In contrast with the control group,clinical signs and pathological lesions were present in each infection group.In the immunogenicity assay,the rabbits that were challenged with 30 000 oocysts of Eimeria magna produced complete immunoprotection after inoculated with 100 oocysts.In the drug sensitivity test,the efficacy of three anticoccidial drugs against Eimeria magna was j udged ac-cording to clinical symptoms,oocyst output,feed conversion rate,the highest efficacy in the group of mon-ensin,and the lowest efficacy in the group of robenidine.The Eimeria magna had high virulence and immu-nogenicity in rabbits,and monensin can be used as preferred drug to control Eimeria magna.关键词
大型艾美耳球虫/潜隐期/致病性/免疫原性/药敏特性Key words
Eimeria magna/prepatent period/pathogenicity/immunongenicity/drug sensitivity分类
农业科技引用本文复制引用
柳南星,方素芳,顾小龙,魏香蒲,梁淑珍,张丽云,李慧峰,崔平..大型艾美耳球虫生物学特性研究[J].动物医学进展,2018,39(3):40-44,5.基金项目
河北北方学院重大课题项目(ZD201308) （ZD201308）
