摘要
用不同感染量的柔嫩艾美尔球虫孢子化卵囊口服接种肉食雏鸡和京白蛋雏鸡,并对其潜隐期、最早血便时间、病理变化等进行了观察研究。结果表明,感染量越大,潜隐期越短,血便出现越早,病理变化越严重,而当达到5000个剂量时再增大感染量,潜隐期提前不明显,病理变化严重程度增加也不明显。
Groups of 5 broilers or layers were given different numbers of sporulated oocysts of Eimeria tenella via an oral inoculation. The prepatent period, the time the first bloody feces appeared and the cecal lesions were studied carefully.It was found that the prepatent period and the first bloody feces time shortened with the increase of inoculated oocysts. The cecal lesions and bleedy also got more severe with more oocysts inoculated. But up to the dose of 5000 oocysts/bird, the prepatent period and cecal lesions didn't change significantly as below this dose. It was also found that the prepatent period and cecal lesions of broilers or layers were different with the same inoculated dose.
出处
《莱阳农学院学报》
1993年第3期219-222,共4页
Journal of Laiyang Agricultural College
关键词
鸡病
艾美尔球虫
球虫病
潜伏期
chicken
eimeria tenella
prepatent period
inoculated dose
