摘要
对杨陵区四乡一镇的６８ 组鸡群进行了鸡球虫病的调查研究。结果表明，杨陵区鸡球虫病比较普遍，１５～５０ 日龄雏鸡的球虫病特别严重。全区鸡的球虫平均感染率为５８．３％ 。在所检查的青年、成年鸡群中，笼养鸡群的球虫感染率为 ３５．１％ ，散养鸡群的球虫感染率为５７．４％ 。雏鸡的球虫感染率为６８．４％ 。经实验室鉴定，共查见柔嫩艾美耳球虫（ Ｅｉｍ ｅｒｉａ ｔｅｎｅｌｌａ）、毒害艾美耳球虫（ Ｅ．ｎｅｃａｔｒｉｘ）、巨型艾美耳球虫（ Ｅ．ｍ ａｘｉｍ ａ）、堆型艾美耳球虫（ Ｅ．ａｃｅｒｖｕｌｉｎａ）、早熟艾美耳球虫（ Ｅ．ｐｒａｅｃｏｘ）、和缓艾美耳球虫（ Ｅ．ｍ ｉｔｉｓ）和哈氏艾美耳球虫（ Ｅ．ｈａｇａｎｉ）等７ 个种，柔嫩艾美耳球虫（ Ｅ．ｔｅｎｅｌｌａ）为杨陵区鸡球虫病原的优势种。文中对不同日龄和不同饲养环境下的鸡群球虫感染的原因作了分析。
group chickens in the different areas of Yangling District were randomly investigated for chicken coccidiosis. The results show that the chicken coccidiosis is very prevalent in Yangling. The average infective rate is 58.3%,and Wuquan area has a highest infective rate(62.7%). The chicks at 15~50 day ages are specially severe in coccidiosis, with a 68.4% infective rate.According to laboratory identification, 7 Eimeria species were discovered. They are E.tenella, E.necatrix, E.naxima ,E.acervulina, E.praecox, E.mitis and E.hagani,E.tenella is a dominant species of chicken in Yangling. The different prevalences of chicken coccidiosis among different ages and environments were discussed.
出处
《动物医学进展》
CSCD
1999年第3期39-41,49,共4页
Progress In Veterinary Medicine
关键词
鸡
球虫病
病原种类
chicken
Eimeria
pathogen species
