1990
DOI: 10.1007/bf01193381
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Immunity of the ox to the brown ear tickRhipicephalus appendiculatus

Abstract: Controlled repeated infestation of Bos taurus and Bos indicus cattle resulted in a decline in the recovery of all R. appendiculatus instars. Resistance to infestation varied between individuals although all individuals manifested severe hypersensitivity at the attachment site, which was reflected in the grooming reflex.

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Cited by 18 publications
(4 citation statements)
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“…It is well known that most tick larvae and nymphs are removed by the grooming activity of the host, which is also stimulated by hypersensivity reactions at the tick attachment site (Fivaz and Norval, 1990) most probably as a result of the 94 kDa cement antigen action (Shapiro et al, 1989). Naumov (1985) stated that there was a difference between the prevalence and high TBE antibody level in the rodents' blood and the low tick pre-imaginal phase abundance.…”
Section: Discussionmentioning
confidence: 99%
“…It is well known that most tick larvae and nymphs are removed by the grooming activity of the host, which is also stimulated by hypersensivity reactions at the tick attachment site (Fivaz and Norval, 1990) most probably as a result of the 94 kDa cement antigen action (Shapiro et al, 1989). Naumov (1985) stated that there was a difference between the prevalence and high TBE antibody level in the rodents' blood and the low tick pre-imaginal phase abundance.…”
Section: Discussionmentioning
confidence: 99%
“…Re-drawn from Randolph, 1994aRandolph, , 1997. (Chiera, Newson & Cunningham, 1985 ;Fivaz & Norval, 1990 ;Walker et al 1990), but rather that even greater susceptibility of eggs and larvae to variable abiotic factors will swamp any biotic factors. These abiotic factors typically involved moisture availability to the eggs and larvae, measured in terms of rainfall or relative humidity, but probably more precisely dependent on soil moisture (Fig.…”
Section: Natural Population Regulation In Ticksmentioning
confidence: 99%
“…The disease, caused by the protozoan haemoparasite Theileria parva ( T. parva ), is transmitted by the 3-host tick Rhipicephalus appendiculatus [1]. The severity of the disease manifests differently in various breeds of cattle, with the zebu cattle ( Bos indicus ) being more resistant than the exotic breeds ( Bos taurus ) against both the parasite [2] and the vector [3,4]. Theileriosis causes high levels of mortality in taurine breeds [5] and both high morbidity and mortality in indigenous 1–6 month old calves ( Bos indicus ).…”
Section: Introductionmentioning
confidence: 99%