Prevalence of trypanosomiasis in Zebu cattle at Obudu ranch — a tsetse-free zone in Nigeria

Anene, B. M.; Chime, A.B.; Jibike, GI; Anika, S. M.

doi:10.1016/0167-5877(91)90011-p

Cited by 17 publications

(7 citation statements)

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“…Previously, cases of trypanosomosis have been reported in the Sahel around Maiduguri (Maxie et al, 1979). These unusual occurrences have been linked to movement of cattle from tsetse infested to tsetse free zones (Anene et al, 1991). Moreover, mechanical vectors such as biting flies have been incriminated in transmission of trypanosomosis in tsetse free zones (Soulsby, 1982).…”

Section: Discussionmentioning

confidence: 99%

Risk factors of haemoparasites and some haematological parameters of slaughtered trade cattle in Maiduguri, Nigeria

Paul¹,

Bello²,

Ngari³

et al. 2016

J. Vet. Med. Anim. Health

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This study was conducted to determine the prevalence of haemoparasites and some haematological parameters of slaughtered trade cattle in Maiduguri abattoir. A total of 120 blood samples were randomly collected from cattle between January and July, 2014. The samples were screened for haemoparasites by examining Giemsa stained thin blood films. Microhaematocrit centrifugation technique was used for determination of packed cell volume (PCV) while total red blood cell (RBC) counts and total white blood cell (WBC) counts were determined by cyanmethaemoglobin and hemocytometer methods. An overall prevalence of 10.8% (CI=0.064, 0.017) was recorded for Anaplasma (5.8%), Babesia (4.2%) and Trypanosoma species (0.8%). Young cattle had significantly (p<0.05) higher prevalence of 9.2% (CI= 0.052, 0.157) compared to adults with 1.7% (CI= 0.005, 0.059). Among different sexes, females had a significantly (p<0.05) higher prevalence of 7.5% (CI: 0.040-0.136) than males with 3.3% (CI= 0.130, 0.083). Rahaji breed had a significantly higher (p<0.05) prevalence of 7.5% (CI= 0.040, 0.136) compared to Ambala with 1.7% (CI= 0.005, 0.059), Kuri and Adamawa gudali each with a prevalence of 0.8% (CI= 0.002, 0.046). Cattle with moderate body condition scores had significantly (p<0.05) higher prevalence of 6.7% (CI= 0.034, 0.126) compared with those that have good body condition scores with 4.2% (CI= 0.018, 0.094) while thin and fat cattle were not infected with haemoparasites. Even though all the haematological parameters were within range of normal values, there was a significant difference (p<0.05) in mean packed cell volume (PCV) and total white blood cell (WBC) counts between infected and un-infected slaughtered cattle. It was concluded from this study that haemoparasites are endemic in cattle populations in Maiduguri and the prevalence of haemoparasites may be associated with changes in PCV and WBC count.

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Section: Discussionmentioning

confidence: 99%

Risk factors of haemoparasites and some haematological parameters of slaughtered trade cattle in Maiduguri, Nigeria

Paul¹,

Bello²,

Ngari³

et al. 2016

J. Vet. Med. Anim. Health

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“…Tsetse flies cover an approximately 80% of the landmass in Nigeria [ 7 ], hence AAT continues to thrive, and losses incurred have not reduced [ 8 ]. The prevalence of trypanosome infections in the tsetse flies is often neglected probably due to the intensive labour required for its evaluation [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

A meta-analysis of the prevalence of African animal trypanosomiasis in Nigeria from 1960 to 2017

Odeniran

Ademola

2018

Parasites Vectors

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BackgroundAfrican animal trypanosomiasis is an economically significant disease that affects the livestock industry in Nigeria. It is caused by several parasites of the genus Trypanosoma. National estimates of the disease prevalence in livestock and tsetse flies are lacking, therefore a systematic review and meta-analysis were performed to understand the trend of the disease prevalence over the years.MethodsPublications were screened in Web of Science, Ovid MEDLINE, Global Health, EMBASE and PubMed databases. Using four-stage (identification, screening, eligibility and inclusion) process in the PRIMSA checklist, only studies that met the inclusion criteria for AAT and tsetse infections were analysed. Point estimates prevalence and subgroup analyses based on diagnostic techniques in livestock were evaluated at 95% confidence interval (CI).ResultsA total of 74 eligible studies published between 1960 and 2017 were selected for meta-analysis. This covers the six geopolitical zones, involving a total of 53,924 animals. The overall prevalence of AAT was 16.1% (95% CI: 12.3–20.3%). Based on diagnostic techniques, the prevalence of AAT in cattle was highest in PCR followed by serology and microscopy while the highest prevalence in pigs was observed with serology. Out of 12,552 tsetse flies examined from 14 eligible studies, an overall prevalence of 17.3% (95% CI: 4.5–36.0%) and subgroup prevalence of 49.7% (95% CI: 30.7–68.8%), 11.5% (95% CI: 6.1–18.5) and 4.5% (95% CI: 1.8–8.8%) in G. morsitans, G. tachinoides and G. palpalis, respectively, were observed using the random effects-model.ConclusionsThe prevalence of trypanosomes in both vectors and animal hosts was high in Nigeria. Therefore, further research on risk factors, seasonal and transhumance effects, vectoral capacity and competence are warranted for an effective control of AAT in Nigeria.Electronic supplementary materialThe online version of this article (10.1186/s13071-018-2801-0) contains supplementary material, which is available to authorized users.

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“…Accordingly, the resulting component 2 to 4 images from the PCA analysis of this NDVI time-series dataset suggests that there are some environmental implications particularly resulting from breeding habitats for vector-borne diseases as a result of global climate change and climatic variability which correlates with studies conducted by Matzke, 1983;Anene, et al, 1991;Kalu, 1995Kalu, , 1996Patz, et al;, Ameh, et al, 2000. For most of the pockets vegetated areas that are indicative of either negative or positive anomalies as the PCA results have shown, representing areas of ecological zones of special concern.…”

Section: Resultsmentioning

confidence: 55%

Mapping Potential Habitats for Arthropod Vectors of Trypanosomiasis Infection in Northern Nigeria: An Introductory Synthesis

Umar

Khanan

Umar

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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<p><strong>Abstract.</strong> This paper presents an introductory synthesis for mapping potential habitats of arthropod vectors responsible for animal trypanosomiasis diseases in Northern Nigeria, where there is high production of livestock. Animal trypanosomiasis is considered an arthropod-borne viral disease which is endemic in 36 countries of sub-Saharan Africa and particularly in northern Nigeria. The disease which is transmitted by the vector tsetse fly remains a threat to both humans and livestock in many rural communities of Nigeria. The outbreak of the disease is known to occur as a result of the changing climate which relates to changes in sea surface temperatures otherwise known as “El Niño Southern Oscillations” (ENSO). Trypanosomiasis is mainly experienced whenever there are changes in global precipitation as a result of the changing climate. Monthly Satellite data of Normalized Difference Vegetation Index (NDVI) at 2.5&deg; spatial resolution was sourced from NASA-MODIS/CMD and subjected to principal component analysis using standardized principal components of GIS with a digital elevation model (DEM) supplemented in the analysis. Results revealed pockets of probable habitats of arthropod vectors to be around forest islands characterized by dry woodland and savanna, and in other cases around gallery forests and few lowland and riverine areas. This study demonstrates that geospatial technology is a cost effective tool in mapping of the arthropod vector habitats for Northern Nigeria.</p>

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Prevalence of trypanosomiasis in Zebu cattle at Obudu ranch — a tsetse-free zone in Nigeria

Cited by 17 publications

References 3 publications

Risk factors of haemoparasites and some haematological parameters of slaughtered trade cattle in Maiduguri, Nigeria

Risk factors of haemoparasites and some haematological parameters of slaughtered trade cattle in Maiduguri, Nigeria

A meta-analysis of the prevalence of African animal trypanosomiasis in Nigeria from 1960 to 2017

Mapping Potential Habitats for Arthropod Vectors of Trypanosomiasis Infection in Northern Nigeria: An Introductory Synthesis

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