A survey of Karoo tick paralysis in South Africa.
نویسندگان
چکیده
Recent research interest in Karoo tick paralysis and its vector. Ixodes rubicundus, prompted this survey to determine the economic implications of this disease. The survey indicated relatively high losses caused by the condition, identified the stock involved and provided data on the incidence of paralysis and on the control methods employed. Recommendations are made to institute chemical control earlier in the season to attempt better containment of the problem.
منابع مشابه
Seasonal dynamics of the Karoo paralysis tick (Ixodes rubicundus): a comparative study on Merino and Dorper sheep.
Karoo paralysis in South Africa is induced in livestock by feeding female Ixodes rubicundus ticks when infestation densities on hosts exceed certain critical levels. It has been shown previously that Angora goats are at a higher risk of being paralysed than Merino sheep, and such differences have been related to differences in feeding behaviour and spatial distribution of the two small-stock br...
متن کاملDifferential feeding success of two economically important tick species Rhipicephalus warburtoni and Ixodes rubicundus on two sympatric small mammal species Micaelamys namaquensis and Elephantulus myurus
Rodents are recognised as important hosts of ixodid ticks and as reservoirs of tick-borne pathogens across the world. Sympatric insectivores are inconspicuous and often overlooked as hosts of ticks and reservoirs of disease. Elephant shrews or sengis of the order Macroscelidea are small insectivores that often live in sympatry with rodents in South Africa. Sengis are invariably parasitised by l...
متن کاملSome wild hosts of the Karoo paralysis tick, Ixodes rubicundus Neumann, 1904 (Acari: Ixodidae).
A variety of mammal and bird species in the Mountain Zebra National Park, eastern Cape Province, were examined for Ixodes rubicundus. In addition, caracal (Felis caracal) from the park and its vicinity as well as from the Graaff-Reinet region of the Karoo were examined. Amongst the animals collected, the red rock rabbit (Pronolagus rupestris) was a preferred host of the immature stages of the t...
متن کاملParasites of domestic and wild animals in South Africa. XLIII. Ixodid ticks of domestic dogs and cats in the Western Cape Province.
Ticks were collected at monthly intervals for 16 consecutive months from individual dogs by their owners in or close to the town of Stellenbosch, Western Cape Province. They were also collected for 27 consecutive months from dogs presented for a variety of reasons at three veterinary clinics in Stellenbosch, and from dogs upon admission to an animal welfare shelter. At one of the veterinary cli...
متن کاملبررسی توانایی ایجاد فلجی حاصل از کنه اورنیتودوروس لاهورنسیس
Background & Aims : Sixty nine species of ticks in order Metastigmata may cause tick paralysis. A neurotoxin, which is found in tick salvia, is believed to be responsible for the paralysis. About 4-5 days after tick attachment paralysis occurs. The cause of the paralysis is blockage of transmission at the neuromuscular junction, due to the reduction of release of acetylcholine, and / or int...
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ورودعنوان ژورنال:
- The Onderstepoort journal of veterinary research
دوره 55 2 شماره
صفحات -
تاریخ انتشار 1988