SITES OF ATTACHMENT AND INTRASPECIFIC INFESTATION DENSITIES OF THE BROWN PARALYSIS TICK (RHIPICEPHALUS-PUNCTATUS) ON ANGORA-GOATS

被引:11
作者
FOURIE, LJ
HORAK, IG
VANZYL, JM
机构
[1] Department of Zoology and Entomology, University of the Orange Free State, Bloemfontein, 9300
[2] Faculty of Veterinary Science, University of Pretoria, Onderstepoort
[3] Department of Mathematical Statistics, University of the Orange Free State, Bloemfontein, 9300
关键词
D O I
10.1007/BF01193470
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Significant differences in the distribution of brown paralysis ticks on various age classes of Angora goats were recorded. In kids, most (> 98%) of the ticks attached to the head and ears, whereas in older groups, in addition to the ears, a high proportion (> 20%) of ticks also attached to the ventral side of the neck. There were significant differences in the mean infestation densities of both male and female R. punctatus in kids and older animals. These differences were, however, only significant for the first two sample dates involving kids, and are probably related to behavioural attributes of the kids which enhance tick/host contact. Newly born Angora goat kids are considered a high-risk group with regard to paralysis caused by the brown paralysis tick. Methods of avoiding mortality amongst kids are suggested.
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页码:243 / 249
页数:7
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