摘要
为了解动物园野生动物肠道寄生虫感染情况,本研究采用离心沉淀法、卢戈氏碘液染色法和饱和食盐水漂浮法,对来自河南省不同地区的41种圈养野生动物共计513份粪便样本进行检查.结果显示,野生动物肠道寄生虫的总感染率为33.5%(172/513);共检查出8种肠道寄生虫虫卵、卵囊或包囊,球虫、内阿米巴原虫、蛔虫和圆线虫为主要感染种类,感染率分别为18.3%(94/513)、6.8%(35/513)、6.4%(33/513)和6.2%(32/513);草食、杂食、肉食和鸟类动物肠道寄生虫的感染率分别为29.4%(103/350)、46.2%(12/26)、29.5%(18/61)和51.3%(39/76).感染强度分析结果显示,蓝孔雀、梅花鹿和猕猴的粪便样本中虫卵、卵囊或包囊的感染强度较高.本次调查表明,河南省部分地区动物园的圈养野生动物肠道寄生虫感染情况普遍存在,应采取有效措施,进一步加强野生动物肠道寄生虫病的防控.
Abstract
To investigate the prevalence of intestinal parasites in captive wildlife in zoos of Henan province,513 fecal samples from 41 animal species were collected and examined by centrifugal precipitation,Lugoul's iodine staining and saturated sucrose floatation.The results showed overall infection rate of intestinal parasites at 33.5%(172/513)and detection of 8 kinds of eggs,oocysts or cysts in captive wildlife.The main parasite species were Coccidia,Amoeba,Ascaris and Strongylidae,which were 18.3%(94/513),6.8%(35/513),6.4%(33/513)and 6.2%(32/513),respectively.The infection rates of intestinal parasites were 29.4%(103/350)in herbivores,46.2%(12/26)in omnivores,29.5%(18/61)in carnivores and 51.3%(39/76)in birds,respectively.The infection intensity of eggs,oocysts or cysts were found much higher in fecal samples from Pavo cristatus,Cervus nippon and Macaca mulatta.This study revealed the prevalence of intestinal parasites in captive wildlife in zoos of Henan province,suggesting that effective measures should be taken to strengthen the prevention and control of parasitic infections.