摘要
以15日龄罗曼蛋雏为对象,研究接种不同剂量柔嫩艾美球耳虫(E.tenella)卵囊对雏鸡的致病作用。试验共设4个组,其中3个球虫卵囊感染组和1个非感染对照组,球虫感染组鸡只分别接种E.tenella孢子化卵囊1×104、5×104、8×104个/只。结果显示,感染1×104、5×104、8×104个/只组的平均血便记分分别为0.750、1.825、2.500,致死率分别为10%、30%、60%,盲肠病变值分别为13.0、22.0、28.0,平均增重率分别为75%、56%、49%。试验表明,E.tenella卵囊具有很强的感染性,致病作用与其数量有关。
The experiment studied on pathogenicity of inoculation with different number of E. tenella oocysts in 15 days old Roman chicks. The test consisted of 4 groups, the 3 E. tenella oocyst infected groups and 1 control group, E. tenella oocysts were inoculated respectively with 1 ×（ 104, 5 × 104, 8 × 104 in each chicks for infected one. The results showed average bloody feces scores were 0. 750,1. 825,2. 500 ;mortality were 10%, 30%, 60%,cecal lesion values were： 13,22,28;average weight gain rates were 75%,56%, 49% ,respectively in three infected groups. The conclusion showed that E. tenella oocysts had very strong infectivity, and pathogenicity was relevant to its number.
出处
《动物医学进展》
北大核心
2015年第7期74-77,共4页
Progress In Veterinary Medicine
基金
商丘市科技计划项目(20122023)
