Epidemiology of tick-borne diseases of cattle in Zimbabwe. I. Babesiosis

Norval, R. A. I.; Fivaz, B. H.; Lawrence, J. A.; Daillecourt, Thanai

doi:10.1007/bf02239802

Cited by 49 publications

(32 citation statements)

References 3 publications

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“…In Zimbabwe the origins of R. microplus is thought to have been through livestock movements from Mozambique while R. decoloratus is autochthonous to the country. The displacement of R. decoloratus by R. microplus was first reported by Norval et al (1983) and this is said to have occurred in the north-eastern parts of the country with isolated incidents in the western areas. However, the same authors suggested that because of the 1980-1983 drought, R. microplus had been wiped out of the country.…”

Section: Farmers and Veterinary Extensionmentioning

confidence: 99%

An update on the ecological distribution of the Ixodidae ticks in Zimbabwe

et al. 2015

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In total 7 567 were collected from 121 dip tanks in 12 districts representative of Zimbabwe's five ecological regions between September 2013 and May 2014. Based on morphological traits four genera and 13 species of ticks were identified. Amblyomma hebraeum (60.3%), Rhipicephalus microplus (58.7%), Rhipicephalus decoloratus (47.1%), Rhipicephalus appendiculatus (56.2%), Rhipicephalus evertsi evertsi (67.8%), Rhipicephalus (near) punctatus (13.2%), Hyalomma truncatum (38%) and Hyalomma rufipes (46.3%) were found in all the ecological regions of the country. Amblyomma variegatum and Rhipicephalus compositus (0.8%) were only found in the north central part of the country while Rhipicephalus simus (5%) had a sparse distribution. The Haemaphysalis leachi group (1.7%) and Rhipicephalus sanguineus (1.7%) were found whenever dogs were sampled suggesting these could be widespread throughout the country. The study confirmed the continued limited distribution of Amblyomma variegatum (3.3%) in the north central parts of the country, whereas A. hebraeum was found to have a wide distribution also encroaching areas of high rainfall and lower temperatures where it was not previously recorded. A parapatric relationship existed between these two Amblyomma species. Rhipicephalus appendiculatus was also widely distributed although its presence was dominant in the cooler and wetter parts of the country. The traditionally held view that Hyalomma species and R. evertsi evertsi can survive well under diverse conditions is upheld in this study. Rhipicephalus microplus was also present in dry regions but its adaptability to these regions requires further investigation.

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Section: Farmers and Veterinary Extensionmentioning

confidence: 99%

An update on the ecological distribution of the Ixodidae ticks in Zimbabwe

et al. 2015

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“…In some cases ticks have been reported to cause lower productivity, mortality and transmit diseases such as theileriosis, babesiosis etc. (Norval et al 1984).…”

Section: Introductionmentioning

confidence: 99%

Seasonal prevalence of arthropoda and helminth parasites in sheep (Ovis aries

Yeasmin

Khanum

Zaman

2015

Bangladesh J. Zool.

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The present investigation was carried out to determine the prevalence of arthropoda and helminth parasites in sheep at Azimpur, Dhaka during February, 2012 to January, 2013. A Total of 60 hosts were examined and about 71.67% sheep were found to be infested with arthropod parasites. In sheep two species of arthropod parasites, Linognathus vituli (61.67%) and Damalinia caprae (68.33%) were identified as ecto-parasites. The prevalence of ectoparasites was higher during summer (85%), followed by winter (75%) and rainy (55%). The higher intensity was also recorded in summer (325.17±1.92). Lambs were found more susceptible (85.71%) than adult (80.95%) and young (56%) sheep and higher in female (77.27%) than in male (68.42%). Twelve species of helminth parasites were identified, of them, 3 trematodes, 3 cestodes and 6 nematodes, highest prevalence was shown by Strongyloides sp (71.67%) and lowest by Dictyocaulus sp. (3.33%); found comparatively higher in adults (85.71%) than in young (80%) and 28% in lambs. The male sheeps were more susceptible (81.58%) to helminth infection than female (72.73%). Prevalence of helminthes was found higher in winter (95%) season. The value of co-efficient of correlation between the prevalence and intensity of infestation of ectoparasites and helminth parasites in sheep were 0.95 and 0.978 respectively. In both cases these two variables differed significantly (P<0.01).

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“…11 They are known to transmit diseases, such as babesiosis, anaplasmosis, theileriosis, etc. 12 Ticks also harbor a number of pathogenic bacteria (Pasteurellae, Salmonellae, Brucellae, etc. ), thus act are reservoir and transmit these bacteria to man and animals.…”

Section: Articlementioning

confidence: 99%

Prevalence of pathological conditions causing skin damage and consequently reducing its market value in domestic ruminants of Punjab, Pakistan

et al. 2011

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Data regarding the prevalence of skin diseases reducing the market value of skins and hides and ultimately refined leather were not available in Pakistan. The current study was conducted in the hide/skin markets and abattoirs of Lahore and Faisalabad and tanneries of Sheikhupura, Kasur and Sialkot. The record of various skin diseases and conditions damaging the skin/hide of cattle, goat and sheep was made. Lesions, extent and type of damage were recorded. A total of 21,671 skins / hides were examined out of which 3918 of skins and 600 hides were examined at the abattoirs of Lahore and Faisalabad, 6784 Skins and 1399 hides at hide markets and 8091 skins and 879 hides at tanneries. Out of total 21,671 skins / hides, 66.12% were normal and 33.88% were having some sort of damage. The data were gathered on questionnaire sheets. The prevalence of skin diseases was assessed through Strata V.9 software program. The correlation of the disease and area was analyzed by the chi-square. The prevalence of various diseases and damages due to mal-management in sheep, goats and cattle has been discussed in detail. The damages in goat skins were significantly less as compared with cattle and sheep. However, the type of defects and severity varied amongst various ruminants studied. The most common damages observed, overall in all species studied were atrophy of skin (Thin skin) 6.38%, followed in descending order observed was lesions of wounds 4.94%, old lesions of pox 4.82%, flaying cuts 3.17%, tick infestation 3.08%, lesions caused by mites infestation 2.45%, scratches 2.33%, lesions caused by warble fly larvae 1.47%, decomposition 1.32%, charr (fibrosis) 1.28%, ringworm infection 1.10%, extensive soiling by dung 0.84%, chronic abscesses 0.46%, and Lice infestation 0.17%.

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Epidemiology of tick-borne diseases of cattle in Zimbabwe. I. Babesiosis

Cited by 49 publications

References 3 publications

An update on the ecological distribution of the Ixodidae ticks in Zimbabwe

An update on the ecological distribution of the Ixodidae ticks in Zimbabwe

Seasonal prevalence of arthropoda and helminth parasites in sheep (Ovis aries

Prevalence of pathological conditions causing skin damage and consequently reducing its market value in domestic ruminants of Punjab, Pakistan

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