Seasonality and relative abundance of Tabanidae (Diptera) captured on horses in the Pantanal, Brazil

Barros, Antônio Thadeu Medeiros de

doi:10.1590/s0074-02762001000700006

Cited by 52 publications

(56 citation statements)

References 12 publications

(19 reference statements)

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“…The protozoan epidemiology is directly related to the rainfall period. 4,11,12 Recent studies 13 analyzed the positivity percentage of animals from Uberaba found 16.2% of positivity when searching for antibodies anti-T. vivax, value that was near to what was found in the present study.…”

Section: Resultssupporting

confidence: 85%

Bovine Trypanosomiasis: Retrospective Investigation and Clinical Signs

Garcia¹,

Moura²,

Frange³

et al. 2016

Epidemiol Open J

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Trypanosoma vivax is a protozoan that causes Bovine tripanosomiasys. Originally from Africa, the disease has become common in other countries. Bovine trypanosomiasis is a disease underdiagnosed in many parts of the world, including Brazil. The lack of knowledge regarding this protozoan is a factor that contributes to the rapid spread of the disease. Many losses are attributed to the disease, including death of animals. This study aimed to perform a retrospective investigation of cattle with T. vivax that had blood samples forwarded to Veterinary Hospital of Uberaba-Brazil by performing the Buffy coat technique. The collected data showed that in 285 suspected animals, that had samples submitted to Hospital Veterinário de Uberaba, 17.54% were positive. Separating in gender, females had 22.37% of positivity rate and males 2.13%, which is explained by the handling of the animals where handlers are able to see signs of the disease and decreased milk production, besides the use of the same needle for oxytocin application before milking that spreads the disease for many animals in a short period of time. The biggest prevalence among ages was seen in animals between 1 to 12 months (35% of positivity) and 12 to 24 months of age (61.64% of positivity), possibly because of the immune system development, younger animals do not have immunity to the disease. The breed that most showed positivity was Holstein dairy breed (100%). The opportune diagnosis of T. vivax is an important finding since the disease leads to large losses in cattle ranching and prejudices the economic system.

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Section: Resultssupporting

confidence: 85%

Bovine Trypanosomiasis: Retrospective Investigation and Clinical Signs

Garcia¹,

Moura²,

Frange³

et al. 2016

Epidemiol Open J

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“…However, several species of horse flies found on Marambaia Island are more or less common in either environment, like plateaus, delta river island, Pantanal ou Amazon forest (Bouvier 1952;duTra & marinoni 1994;Barros 2001;Barros et al 2003;BarBosa et al 2005). Unsurprisingly whether forest sandbank or the rain forest, and the number of specimens taken, the species seems to vary according to the landscape, as mainly defined by vegetation (Henriques 2004;BarBosa et al 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Tabanus claripennis (Bigot) Comments: Tabanus claripennis is distributed in the Antilles, Costa Rica to Paraguay, Argentina, Chile and Brazil. In the latter, it was recorded from the states of Roraima, Amazonas, Mato Grosso do Sul and Rio Grande do Sul (Barros 2001;Barros et al 2003;coscarón & PaPavero 2009b). On Marambaia Island, only one specimen was captured by insect hand net, attracted by a horse, near the marsh and forest.…”

Section: Chlorotabanus Inanis (Fabricius)mentioning

confidence: 99%

Checklist and Notes on Behavior of Horse Flies (Diptera: Tabanidae) from Marambaia Island, Rio de Janeiro, Brazil, with New Records for the State

Guimarães

Júnior²,

Harlan-Rodrigues

et al. 2016

EntomoBrasilis

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Abstract. During two periods of studies (1980-1981 and 2012-2013), 31 species of tabanids were identified belonging to 16 genera on Marambaia Island, Rio de Janeiro, Brazil. Esenbeckia lugubris (Macquart), Phaeotabanus cajennensis (Fabricius), Tabanus claripennis (Bigot), Tabanus discus Wiedemann and Tabanus pungens Wiedemann are recorded for the first time in Rio de Janeiro state. Geographical and behavior data of the recorded species are also presented.

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“…Indeed, because of the subclinical nature of EIA infection it was impossible to accurately time the infection onset, and therefore to study any correlations between the seasonality and the potential risk of EIA virus transmission and spreading by insects as documented in the literature. 1 On the other hand, the increase by a factor of 1.7 in the number of tests during the dry season seems to be correlated with an increase in horse events like horse shows and races from March to September, as revealed by inspection of event schedules for 5 horse breeding associations.…”

Section: Step 2: Estimated Relative Risk and Prevalence Calculationsmentioning

confidence: 95%

Distribution of Equine Infectious Anemia in Horses in the North of Minas Gerais State, Brazil

et al. 2006

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Abstract. The paper examines the prevalence of equine infectious anemia (EIA) in horse populations in the northern part (comprising 89 cities) of Minas Gerais State, Brazil, from January 2002 to December 2004. Data on 8,981 agar gel immunodiffusion test results from the region were used as input for a statistical and autoregressive analysis model to construct a city-level map of the distribution of EIA prevalence. The following EIA prevalence (P) levels were found: 49 cities with 0 , P # 0.5%, 26 with 0.5% , P # 1.5%, 10 with 1.5% , P # 5%, and 4 with 5% , P # 25%.

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Seasonality and relative abundance of Tabanidae (Diptera) captured on horses in the Pantanal, Brazil

Cited by 52 publications

References 12 publications

Bovine Trypanosomiasis: Retrospective Investigation and Clinical Signs

Bovine Trypanosomiasis: Retrospective Investigation and Clinical Signs

Checklist and Notes on Behavior of Horse Flies (Diptera: Tabanidae) from Marambaia Island, Rio de Janeiro, Brazil, with New Records for the State

Distribution of Equine Infectious Anemia in Horses in the North of Minas Gerais State, Brazil

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