Prevalence of Bovine Trypanosomosis and Apparent Density of Tsetse Flies in Eastern Part of Dangur District, North Western Ethiopia

Mulatu, Endalu; Lelisa, Kumela

doi:10.4172/2157-7579.1000347

Cited by 4 publications

(3 citation statements)

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“…This might be due to increased exposure of adult cattle to vectors of trypanosomes. Dagnachew [21], Tekle and Mekonen [22] and Mulatu et al [23] also reported significantly higher infection rate in older cattle. Although the difference is not significant (p>0.05), higher prevalence of trypanosomosis was higher in animals in a poor body condition (18.67%) than in those in medium (16.76%) and good body condition (14.20%) indicating weight loss is one of the symptoms of trypanosomosis [24].…”

Section: Citationmentioning

confidence: 99%

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Kedir¹,

Lelisa²,

Damena³

2016

J Vet Sci Technol

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The study was conducted from October 2015 to November 2015 in Gambela and Abobo districts of Gambela Peoples Regional State, southwestern Ethiopia. It was designed to avail information on prevalence of bovine trypanosomosis and apparent densities of vectors of the trypanosomosis. A parasitological study using buffy coat technique was employed for the determination of prevalence of trypanosomosis while baited mono pyramidal traps were used for the vector survey. A total of 862 cattle randomly selected from the study population were examined for the parasitological study. The result of parasitological study revealed that the overall prevalence of trypanosomosis was found to be 16.59%, 95% CI=14.10-19.08 indicating trypanosomosis is a serious problem in the area. Three Trypanosoma species were identified during the study period: Trypanosoma brucei, T. vivax and T. congolense. Highest trypanosome prevalence (18.67%) was seen in animals with poor condition than that of those with medium (16.76%) and good (14.20%) body condition for the concerned blood parasite but no significant difference was observed (P>0.05). Higher infection rate was occurred in male (18.35%) than female (14.79%) cattle without significant difference (P>0.05). Prevalence was significantly higher in adult animals (17.95%) than younger ones (7.27%) (P>0.05). The study suggested that mean PCV values of parasitaemic (21.13%) cattle was significantly lower than aparasitaemic (22.26%) animals (P<0.05). During entomological survey, four species of tsetse fly: G. tachnoides, G. morsitsns submorsitans, G. pallidipes and G. fuscipes fuscipes and three genera of other biting flies: Tabanus, Haematopota and Stomoxys spp. were caught. The overall apparent density of tsetse flies was 0.75 fly/trap/day. Trypanosomosis and tsetse fly pose great threat to cattle residing in study areas. Thus, appropriate intervention measures need to be taken.

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Section: Citationmentioning

confidence: 99%

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Kedir¹,

Lelisa²,

Damena³

2016

J Vet Sci Technol

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“…an estimated US $1–1.2 billion loss in cattle production annually [ 2 ]. AAT is caused by several trypanosome species, including Trypanosoma brucei, Trypanosoma congolense and Trypanosoma vivax [ 3 ] . The disease normally occurs in areas inhabited by the biological vectors of trypanosomes (tsetse flies Glossina spp.…”

Section: Introductionmentioning

confidence: 99%

“…The disease normally occurs in areas inhabited by the biological vectors of trypanosomes (tsetse flies Glossina spp. ), although some species of Trypanosoma can be mechanically and sexually transmitted [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Adipose and skin distribution of African trypanosomes in natural animal infections

Amisigo,

Amegatcher,

Sunter

et al. 2024

Parasites Vectors

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Background Animal African trypanosomiasis, which is caused by different species of African trypanosomes, is a deadly disease in livestock. Although African trypanosomes are often described as blood-borne parasites, there have been recent reappraisals of the ability of these parasites to reside in a wide range of tissues. However, the majority of those studies were conducted on non-natural hosts infected with only one species of trypanosome, and it is unclear whether a similar phenomenon occurs during natural animal infections, where multiple species of these parasites may be present. Methods The infective trypanosome species in the blood and other tissues (adipose and skin) of a natural host (cows, goats and sheep) were determined using a polymerase chain reaction-based diagnostic. Results The animals were found to harbour multiple species of trypanosomes. Different patterns of distribution were observed within the host tissues; for instance, in some animals, the blood was positive for the DNA of one species of trypanosome and the skin and adipose were positive for the DNA of another species. Moreover, the rate of detection of trypanosome DNA was highest for skin adipose and lowest for the blood. Conclusions The findings reported here emphasise the complexity of trypanosome infections in a natural setting, and may indicate different tissue tropisms between the different parasite species. The results also highlight the need to include adipose and skin tissues in future diagnostic and treatment strategies. Graphical Abstract

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A meta-analysis of the prevalence of bovine trypanosomiasis in some African countries from 2000 to 2018

Ebhodaghe

Isaac

Ohiolei

2018

Preventive Veterinary Medicine

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Prevalence of Bovine Trypanosomosis and Apparent Density of Tsetse Flies in Eastern Part of Dangur District, North Western Ethiopia

Cited by 4 publications

References 0 publications

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Adipose and skin distribution of African trypanosomes in natural animal infections

A meta-analysis of the prevalence of bovine trypanosomiasis in some African countries from 2000 to 2018

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