Ctenocephalides felis felis (Bouché, 1835) e Rhipicephalus (Boophilus) microplus (Canestrini, 1887) em caprinos e ovinos no Município de Sinop, Mato Grosso, Brasil

Pereira, M. R.; Silva, G.A.G.; Maciel, Alessandro S.; Galhardo, Juliana Arena; Campos, Artur Kanadani

doi:10.1590/s1808-16572012000400019

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The occurrence of ticks of the genus Rhipicephalus, among others, in sheep has been widely reported in Brazil and other countries [5][6][7][8][9][10][11][12][13]. In Brazil, specific studies have largely been restricted to the sheep industry in the northeastern region due to the traditional breeding of hair sheep that are able to withstand the local climatic conditions.…”

Section: Introductionmentioning

confidence: 99%

Contributions of the hair sheep breed Santa Ines as a maintenance host for Rhipicephalus ( Boophilus ) microplus (Acari: Ixodidae) in Brazil

Garcia

Andreotti

Reis

et al. 2014

Parasites & Vectors

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Background: Hair sheep breeds are a new, cost-effective option for the diversification of livestock in the Midwest region of Brazil. They are grazed extensively with cattle as well as in isolation in small areas. Hair sheep breeds are vulnerable to infestation by parasites such as the cattle tick, Rhipicephalus microplus, which causes various types of damage and can transmit diseases. Methods: In this study, Santa Inês hair sheep were naturally infested in an area contaminated by infested cattle and then monitored to determine the ability of these animals to maintain the local tick population in the absence of cattle. After engorged tick females of each generation fell off, the animals were placed in another pasture and were returned only after larvae reappeared in the original pasture. Results: Tick counts were performed every ten days for three generations of sheep, and average infestations per animal of 34, 12 and 4 ticks were observed for each successive generation. These numbers suggest the acquisition of resistance; however, additional studies are needed to ensure resistance is achieved. The average length of the parasitic phase for each generation of ticks was 25 days. Conclusion: We concluded that this hair sheep breed, even if kept separate from cattle, is able to maintain tick populations for at least three generations, although a gradual decrease in the population levels of R. microplus over three generations was observed. We also detected two positive cases of Anaplasma spp. Therefore, it appears that the Santa Inês hair sheep breed contributes to the circulation of this bacterium among other ruminants.

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Section: Introductionmentioning

confidence: 99%

Contributions of the hair sheep breed Santa Ines as a maintenance host for Rhipicephalus ( Boophilus ) microplus (Acari: Ixodidae) in Brazil

Garcia

Andreotti

Reis

et al. 2014

Parasites & Vectors

View full text Add to dashboard Cite

show abstract

“…The occurrence of ticks of the genus Rhipicephalus , among others, in sheep has been widely reported in Brazil and other countries [ 5 - 13 ]. In Brazil, specific studies have largely been restricted to the sheep industry in the northeastern region due to the traditional breeding of hair sheep that are able to withstand the local climatic conditions.…”

Section: Introductionmentioning

confidence: 99%

Contributions of the hair sheep breed Santa Ines as a maintenance host for Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) in Brazil

et al. 2014

View full text Add to dashboard Cite

BackgroundHair sheep breeds are a new, cost-effective option for the diversification of livestock in the Midwest region of Brazil. They are grazed extensively with cattle as well as in isolation in small areas. Hair sheep breeds are vulnerable to infestation by parasites such as the cattle tick, Rhipicephalus microplus, which causes various types of damage and can transmit diseases.MethodsIn this study, Santa Inês hair sheep were naturally infested in an area contaminated by infested cattle and then monitored to determine the ability of these animals to maintain the local tick population in the absence of cattle. After engorged tick females of each generation fell off, the animals were placed in another pasture and were returned only after larvae reappeared in the original pasture.ResultsTick counts were performed every ten days for three generations of sheep, and average infestations per animal of 34, 12 and 4 ticks were observed for each successive generation. These numbers suggest the acquisition of resistance; however, additional studies are needed to ensure resistance is achieved. The average length of the parasitic phase for each generation of ticks was 25 days.ConclusionWe concluded that this hair sheep breed, even if kept separate from cattle, is able to maintain tick populations for at least three generations, although a gradual decrease in the population levels of R. microplus over three generations was observed. We also detected two positive cases of Anaplasma spp. Therefore, it appears that the Santa Inês hair sheep breed contributes to the circulation of this bacterium among other ruminants.

show abstract

Ctenocephalides felis felis (Bouché, 1835) e Rhipicephalus (Boophilus) microplus (Canestrini, 1887) em caprinos e ovinos no Município de Sinop, Mato Grosso, Brasil

Cited by 2 publications

References 6 publications

Contributions of the hair sheep breed Santa Ines as a maintenance host for Rhipicephalus ( Boophilus ) microplus (Acari: Ixodidae) in Brazil

Contributions of the hair sheep breed Santa Ines as a maintenance host for Rhipicephalus ( Boophilus ) microplus (Acari: Ixodidae) in Brazil

Contributions of the hair sheep breed Santa Ines as a maintenance host for Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) in Brazil

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