O'Lorcain P
Department of Zoology, Trinity College Dublin, Ireland.
J Helminthol. 1994 Dec;68(4):331-6. doi: 10.1017/s0022149x00001590.
A survey was undertaken to study the epidemiology of Toxocara spp. in 350 dogs and 181 cats. A prevalence of 82.6% was recorded for Toxocara canis and 42% for T. cati. The distribution of parasite burdens in both dogs and cats was overdispersed. The highest parasite prevalence rates and burdens were found in hosts of 12 to 24 weeks of age. No Toxocara parasites were found in cats between 0 to 4 weeks old. There was no significant difference in parasite prevalence between male and female dogs or between male and female cats. The relationships between host age and sex with parasite prevalence, burden and length are discussed. Female T. canis worms with mature ova and those with immature ova differed significantly with regard to their length. The relationship between the length of mature T. canis female worms and the proportion of body length occupied by the uterus was highly significant.
开展了一项调查，以研究350只犬和181只猫体内弓首蛔虫属的流行病学情况。犬弓首蛔虫的感染率为82.6%，猫弓首蛔虫的感染率为42%。犬和猫体内寄生虫负荷的分布呈过度分散状态。在12至24周龄的宿主中发现了最高的寄生虫感染率和负荷。在0至4周龄的猫中未发现弓首蛔虫寄生虫。雄性和雌性犬之间或雄性和雌性猫之间的寄生虫感染率没有显著差异。讨论了宿主年龄和性别与寄生虫感染率、负荷及长度之间的关系。带有成熟虫卵的雌性犬弓首蛔虫和带有未成熟虫卵的雌性犬弓首蛔虫在长度上有显著差异。成熟雌性犬弓首蛔虫的长度与子宫占体长的比例之间的关系极为显著。
