Infestations of the bent tick Amblyomma hebraeum (Acari: Ixodidae) on different breeds of cattle in Zimbabwe

被引：48
|
作者：
Norval, RAI
Sutherst, RW
Kerr, JD
机构：
[1] Veterinary Research Laboratory, Causeway, Harare
[2] CSIRO, Division of Entomology, Long Pocket Laboratories, Indooroopilly, QLD 4068, PMB 3, PO
[3] CSIRO, IPPP Biometrics, Long Pocket Laboratories, Indooroopilly, QLD 4068, PMB 3, PO
[4] CSIRO Division of Entomology, Gehrmann Laboratories, University of Queensland
来源：
EXPERIMENTAL & APPLIED ACAROLOGY | 1996年 / 20卷 / 10期
关键词：
Amblyomma hebraeum; ticks; cattle; resistance; Zimbabwe;
D O I：
10.1007/BF00052810
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
Infestations of adults and nymphs of Amblyomma hebraeum were counted on Brahman (Br), Brahman x Simmental (BS), Sanga (Sa) and Hereford (He) steers exposed to infested pastures at Mbizi in southern Zimbabwe in 1986-1987. Herefords were always the most heavily infested, while the Sanga tended to carry the fewest ticks with the Brahman and Brahman x Simmental groups being in between. The ratios of the engorged females on the four breeds were 2.3: 1.4: 1.4:1.0 for He:Br:BS:Sa. The ratios of the standard nymphs were 2.2: 1.4:1.7:1.0 for He:Br:BS:Sa. The results confirm earlier observations in Africa and support the view that there are genetic differences between breeds in the expression of resistance to this tick species.
引用
收藏
页码：599 / 605
页数：7
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