Bumstead N, Millard B J
AFRC Institute for Animal Health, Houghton, Huntingdon, UK.
Parasitology. 1992 Jun;104 ( Pt 3):407-13. doi: 10.1017/s0031182000063654.
The pattern of oocyst production of 8 inbred lines of chickens was compared for each of the 7 species of Eimeria which infect this host. Both the overall numbers and the pattern of oocyst production differed in the inbred lines, but there was no evidence of prolonged cycling of schizogenic developmental stages. Comparison of the numbers of oocysts produced by the different lines indicates that there may be common genetic factors affecting susceptibility to 6 of the 7 species. Surprisingly there appears to be an inverse relationship between susceptibility to E. tenella and susceptibility to the other species: lines which produced most oocysts of E. tenella produced least oocysts of the other species and vice-versa.
针对感染鸡的7种艾美耳球虫，比较了8个近交系鸡的卵囊产生模式。近交系中卵囊产生的总数和模式均有所不同，但未发现裂殖生殖发育阶段有延长循环的迹象。不同品系产生的卵囊数量比较表明，可能存在影响对7种球虫中6种易感性的共同遗传因素。令人惊讶的是，对柔嫩艾美耳球虫的易感性与对其他物种的易感性之间似乎存在反比关系：产生最多柔嫩艾美耳球虫卵囊的品系产生其他物种的卵囊最少，反之亦然。
