尤林艾美耳球虫菌株(EtYL),对大多数抗球虫药物敏感,被隔离在广西玉林地区,中国。然后,玉林早熟艾美耳球虫(pEtYL),专利期为108小时的早熟线,是通过早期选择获得的。pEtYL的生物学特性,包括它的形态,纯度,卵囊排泄曲线,生殖能力,致病性,免疫原性,和保存时间,进行了全面分析。结果表明,分离的早熟大肠杆菌具有较高的纯度,致病性相对较弱,和良好的免疫原性,可作为鸡球虫病的活疫苗系。
The Eimeria tenella Yulin strain (EtYL), which is sensitive to most anti-coccidial drugs, was isolated in the Yulin area of Guangxi, China. Then, Eimeria tenella Yulin precocious line (pEtYL), a precocious line with a prepatent period of 108 h, was obtained through early selection. The biological characteristics of pEtYL, including its morphology, purity, oocyst excretion curve, reproductive capacity, pathogenicity, immunogenicity, and preservation time, were comprehensively analyzed. The results showed that the isolated precocious line of E. tenella exhibited high purity, relatively weak pathogenicity, and good immunogenicity and can be used as a live vaccine line for chicken coccidiosis.