Theileria mutans infection in nigerian cattle

Saidu, S. N. A.; Abdulkadir, Ibrahim; Akerejola, O. O.

doi:10.1007/bf02252781

Cited by 10 publications

(9 citation statements)

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“…66.3 and 52.4 %, respectively) in the study area. These two mildly pathogenic Theileria species have long been recognised as the only two Theileria species present in Nigeria [ 12 , 15 ]. They are both transmitted by Amblyomma variegatum [ 36 , 37 ] (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, TBDs display with high morbidity and mortality in exotic cattle (i.e. Bos taurus ) when introduced in the area for crossbreeding purposes, thus representing a major limitation to the improvement of cattle production in the country [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…To date, all investigations of tick-borne pathogens in cattle from Nigeria have been based on cytological examinations of blood smears and lymph node biopsies [ 10 , 11 , 14 – 16 ] and/or on serological methods [ 15 – 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Tick-borne pathogens of zoonotic and veterinary importance in Nigerian cattle

et al. 2016

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BackgroundTicks and tick-borne diseases undermine cattle fitness and productivity in the whole of sub-Saharan Africa, including Nigeria. In this West African country, cattle are challenged by numerous tick species, especially during the wet season. Consequently, several TBDs are known to be endemic in Nigerian cattle, including anaplasmosis, babesiosis, cowdriosis and theilerioris (by Theileria mutans and Theileria velifera). To date, all investigations on cattle TBDs in Nigeria have been based on cytological examinations and/or on serological methods. This study aimed to ascertain the occurrence of tick-borne pathogens of veterinary and zoonotic importance in cattle in Nigeria using molecular approaches.MethodsIn October 2008, 704 whole blood samples were collected from indigenous cattle in the Plateau State, Nigeria. Analysis for tick-borne pathogens was conducted by means of PCR-based reverse line blotting (RLB) and sequencing targeting a panel of five genera of microorganisms (i.e. Babesia, Theileria, Anaplasma, Ehrlichia and Rickettsia spp.).ResultsIn total, 561/704 (82.6 %) animals were found infected, with 465 (69.6 %) of them being infected by two or more microorganisms, with up to 77 possible combinations of pathogens detected. Theileria mutans was the most prevalent microorganism (66.3 %), followed by Theileria velifera (52.4 %), Theileria taurotragi (39.5 %), Anaplasma marginale (39.1 %), Anaplasma sp. (Omatjenne) (34.7 %), Babesia bigemina (7.9 %), Anaplasma centrale (6.3 %), Anaplasma platys (3.9 %), Rickettsia massiliae (3.5 %), Babesia bovis (2.0 %) and Ehrlichia ruminantium (1.1 %). Calves were found significantly less infected than juvenile and adult cattle.ConclusionsThis study provides updated, molecular-based information on cattle TBDs in Nigeria. The molecular approach employed allowed the diagnosis of numerous positive cases including carrier statuses, multiple infections and novel pathogen detections within the indigenous cattle population. Moreover, the RLB method here described enabled the detection of veterinary agents not only pertaining to bovine health, including also those of zoonotic importance.The high prevalence recorded for T. mutans, T. velifera, A. marginale, T. taurotragi and Anaplasma sp. (Omatjenne), suggests they may be endemically established in Nigeria, whereas the lower prevalence recorded for other microorganisms (i.e. A. centrale and B. bovis) highlights a less stable epidemiological scenario, requiring further investigations.Electronic supplementary materialThe online version of this article (doi:10.1186/s13071-016-1504-7) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tick-borne pathogens of zoonotic and veterinary importance in Nigerian cattle

et al. 2016

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“…A. variegatum is of veterinary importance as it transmits Ehrlichia ( Cowdria ) ruminantium [38] , causative agent of heartwater and Dermatophilus congolensis , causing dermatophilosis [39], both known to be endemic in Nigeria. A. variegatum is also a vector of the mildly pathogenic, Theileria mutans [40,41] and Theileria velifera [42] both highly prevalent in Nigeria.…”

Section: Discussionmentioning

confidence: 99%

Ixodid ticks of traditionally managed cattle in central Nigeria: where Rhipicephalus (Boophilus) microplus does not dare (yet?)

Lorusso¹,

Picozzi²,

Bronsvoort

et al. 2013

Parasites Vectors

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BackgroundTicks and tick-borne diseases (TBDs) undermine cattle fitness and productivity in the whole of sub-Saharan Africa, including Nigeria. The aim of this study was to document the composition of tick species, assessing the burden of infestation, in traditionally managed cattle in an area of central Nigeria where acaricides have not been used historically.MethodsThe study was carried out in September 2010 in 9 villages belonging to three neighbouring local government areas in Plateau State, Nigeria. In each village all visible adult ticks were collected from at least 15 cattle (mean number = 25). Collected ticks were preserved in 70% ethanol to be counted and morphologically identified to the species level.ResultsA total of 5011 ixodid ticks (1935 males and 3076 females) were collected from 228 cattle, comprising 14 calves, 33 juveniles, and 181 adults. Three tick genera (i.e., Amblyomma, Hyalomma, and Rhipicephalus, including the Boophilus sub-genus) and 11 species were identified. The most prevalent species was Rhipicephalus (Boophilus) decoloratus (41.4%), followed by Rhipicephalus (Boophilus) annulatus (15.4%), Rhipicephalus guilhoni (12.0%), Rhipicephalus (Boophilus) geigyi (7.6%), Hyalomma truncatum (7.4%), Amblyomma variegatum (6.3%), Rhipicephalus simus Group (4.0%), Rhipicephalus turanicus (1.2%), Rhipicephalus sanguineus (0.3%), Hyalomma rufipes (0.2%), and Rhipicephalus lunulatus (n = 1). Mean tick loads recorded were relatively high (22 ± 1.4), in spite of the practice of hand removal of ticks traditionally undertaken by the Fulani pastoralists in the area. Calves bore a significantly lower tick burden than adults (p = 0.004). Rhipicephalus (Boophilus) microplus was not found in the area, suggesting that the eastbound expansion of this tick species in West Africa, has not yet reached central Nigeria.ConclusionsThis study ascertained the presence of a broad variety of cattle tick species, most of which are of veterinary importance. The presence of each tick species is correlated with the potential occurrence of tick-borne pathogens and suggestions for tick control in the area are considered. Results should assist the diagnosis of related TBDs in cattle as well as the strategic planning of cost-effective tick control.

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“…In Nigeria, the preponderance of A. variegatum on cattle has also been reported elsewhere (Bayer and Maina, 1984;Kamani et al, 2017) but being least prevalent in a certain surveyed location in northern Nigeria (Lorusso et al 2013). The presence of A. variegatum could pose a challenge to animal health because it is a vector to an array of pathogenic organisms (Hoogstraal, 1956;Uilenberg, 1981;Saidu et al, 1984). Similarly, the recovery of Rh.…”

Section: Discussionmentioning

confidence: 93%

The Prevalence of Ectoparasites of Livestock and Dogs in Edo State (South-South), Nigeria

Isaac¹,

Ohiolei²,

Igbinosa³

et al. 2019

Nig. Vet. J.

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The presence of ectoparasites on animals could cause significant economic losses. Hence, profiling of these parasites on hosts in any location is the first step to planning prevention and control activity. Livestock (cattle, goats, sheep and chickens) and dogs were screened for ectopararsites (ticks, lice and fleas) in some local government areas in Edo state, Nigeria. Using standard methods, samples were collected from animals, identified and counted. Only ticks were recovered from cattle with Amblyomma variegatum (66%) being the most prevalent species. On goats, the different groups of ectoparasites were geographically isolated. Only tick species were seen in Oredo, lice in Esan-West and fleas in Owan-West; while on sheep, ectoparasites were relatively scanty across study locations. Only lice species were seen on chickens with Menopon gallinae (70.37%) most occurring. For dogs, ectoparasites diversity was richer than sampled livestock as ticks, lice and fleas were recovered. The possible significance of recovered ectoparasites in the study areas is thus discussed.

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Theileria mutans infection in nigerian cattle

Cited by 10 publications

References 5 publications

Tick-borne pathogens of zoonotic and veterinary importance in Nigerian cattle

Tick-borne pathogens of zoonotic and veterinary importance in Nigerian cattle

Ixodid ticks of traditionally managed cattle in central Nigeria: where Rhipicephalus (Boophilus) microplus does not dare (yet?)

The Prevalence of Ectoparasites of Livestock and Dogs in Edo State (South-South), Nigeria

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