Abstract
The efficacy of an amitraz/cypermethrin pour-on preparation (1% w/v each) was tested against natural tick infestations of buffaloes, eland and blesbok in three separate trials. The eland were also treated with a 0.02% abamectin (w/v) acaricidal pour-on preparation. The amitraz/cypermethrin pour-on was effective against Amblyomma hebraeum, Rhipicephalus evertsi evertsi, Rhipicephalus appendiculatus and Hyalomma marginatum rufipes on the buffaloes. Both acaricides were effective against R. appendiculatus and Rhipicephalus (Boophilus) decoloratus in the eland. The amitraz/cypermethrin acaricide was effective against R. (Boophilus) decoloratus in the blesbok. Ticks can cause damage to the skins, secondary infections, abscesses, anaemia, loss of condition, tick toxicosis and act as vectors of infectious diseases. Introduction of hosts and/or ticks from endemic to non-endemic areas because of translocation of game, may lead to severe losses. The pouron acaricides tested were effective against natural tick infestations and should always be used according to the manufacturer's instructions and efficacy claims.
Highlights
Game ranching is becoming a lucrative industry in southern Africa, leading to a number of wildlife species being kept in areas other than their natural habitat
Box 18348, Pretoria North, 0116 South Africa 4 Animal Improvement Institute, Irene, Private Bag X2, Irene, 0062 South Africa 5 8 Trevor Street, Murrayfield, Pretoria, 0184 South Africa Accepted for publication 20 June 2005—Editor these animals, to reduce stress levels, physical damage inflicted by ectoparasites and transmission of tick-borne diseases, especially when game are kept under semi-intensive conditions
Lower than 80 % efficacy against A. hebraeum and R. evertsi evertsi was found for both acaricide pour-on formulations in the eland
Summary
Game ranching is becoming a lucrative industry in southern Africa, leading to a number of wildlife species being kept in areas other than their natural habitat. Management interventions such as the use of acaricides are required to maintain the health of. Many game animals are often relocated to other game reserves for various reasons. The presence of tuberculosis and other diseases in African buffaloes in certain areas has led to their relocation to various game reserves to participate in disease-free breeding programmes. Translocation and export of game animals requires complete cleaning from tick infestations (Hamel & Van Amelsfoort 1985)
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