STRAIN VARIATION WITHIN EIMERIA-MELEAGRIMITIS FROM TURKEY
STRAIN VARIATION WITHIN EIMERIA-MELEAGRIMITIS FROM TURKEY
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DOI：
10.1017/s0031182000062314
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发表时间：
1977-01-01
期刊：
影响因子：
2.4
通讯作者：
SHIRLEY, MW
中科院分区：
文献类型：
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作者：
LONG, PL;MILLARD, BJ;SHIRLEY, MW
在对火鸡球虫病的实地研究过程中，发现了艾美耳虫卵囊，其尺寸比以前从火鸡中记录的任何分离物都要小得多。这些卵囊是由一只火鸡的单卵囊感染纯化的。第一批卵囊平均尺寸16.15倍。14.75 .mu。M)在103 h后被回收。接种0.5 ~ 2.5次。该分离物的105个卵囊对体重增加造成严重影响。交叉免疫研究表明，该寄生虫是一种肉芽胞杆菌。2种酶的电泳分析表明，该菌株可与另一株（Weybridge菌株B）区分。菌株变异发生在肉鸡艾美耳球虫种内，根据其卵囊特征来鉴定火鸡艾美耳球虫种时应非常谨慎。
During the course of a field study of coccidiosis in turkeys, Eimeria oocysts were found which had much smaller dimensions than any previously recorded isolate from the turkey. These oocysts were purified by single oocyst infection of a turkey. The first oocysts (mean dimensions 16.15 .times. 14.75 .mu.m) were recovered 103 h later. Inoculation of between 0.5 and 2.5 .times. 105 oocysts of this isolate caused severe effects on body weight gain. Cross-immunity studies showed the parasite to be a strain of E. meleagrimitis. Electrophoretic analyses of 2 enzymes showed that the strain could be differentiated from another another strain of E. meleagrimitis (Weybridge strain B). Strain variation occurs within the species E. meleagrimitis and extreme caution should be used in identifying species of Eimeria from the turkey by their oocyst characters.