Results 21 to 30 of about 76 (59)
A mosca-dos-chifres (Haematobia irritans) é um dos principais ectoparasitos de bovinos no Brasil. Estudos epidemiológicos são exigidos devido às dificuldades crescentes do seu controle químico.
Ivo Bianchin +2 more
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Foram realizados dois experimentos para avaliar o controle de endo e ectoparasitos de bovinos. No primeiro avaliou-se in vitro e, em animais experimentalmente infestados, o efeito da rotenona no carrapato Rhipicephalus(Boophilus) microplus e, no segundo,
João B. Catto +5 more
doaj +1 more source
Eficiência do tratamento parcial de bovinos infestados por mosca-dos-chifres utilizando diazinon 40%
The aim of this investigation was to evaluate the efficiency of partial treatment of animals infested with horn flies. Forty-five Guzerat cows between 4 and 7 years of age were divided into three groups (15 cows per group). The treatments were as follows: in groups G33 and G100, 33.3 and 100% of the cows were treated with one insecticide-impregnated ...
de Almeida, Fabiana Alves +5 more
openaire +1 more source
This work evaluates the lesions caused by ectoparasites like Boophilus microplus, Dermatobia hominis, Haematobia irritans in cattle leather, in tanning industry.
Milton Hissashi Yamamura +2 more
doaj +1 more source
Verificou-se a ação dos reguladores de crescimento de insetos (IGR), diflubenzuron e methoprene, sobre o besouro rola-bosta africano, Digitonthophagus gazella (Fabricius), um inimigo natural da mosca-dos-chifres, Haematobia irritans irritans (Linnaeus ...
L.N. Domingues, J. Mendes
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Identification of Sindhi cows that are susceptible or resistant to Haematobia irritans
To identify susceptible and resistant Haematobia irritans cows, horn flies were counted biweekly for 3 years in a herd of 25 Sindhi cows. Repeated measures linear mixed models were created including cow as a random factor. The results were analyzed by: 1)
Márcia Alves de Medeiros +6 more
doaj +1 more source
Avaliou-se o grau de infestação natural por ectoparasitas em fêmeas bovinas de corte de três grupos genéticos. Foram realizadas contagens, de julho de 2003 a dezembro de 2004, de carrapatos (Rhipicephalus (Boophilus) microplus), moscas-dos-chifres ...
Ana Mary da Silva +3 more
doaj +1 more source
Blood-sucking flies are important parasites in animal production systems, especially regarding confinement conditions. Haematobia irritans, the horn fly, is one of the most troublesome species within bovine production systems, due to the intense stress ...
Luciana Gatto Brito +5 more
doaj +1 more source
Este trabalho relata a primeira ocorrência do parasitóide Paraganapis egeria Diaz & Gallardo (Hymenoptera: Eucoilidae) parasitando pupas de Haematobia irritans L. (Diptera: Muscidae) na região Neotropical. As fezes bovinas foram coletadas nas pastagens da Fazenda Canchim da Embrapa de São Carlos-SP, de abril de 1993 a abril de 1994.
C.H. Marchiori, J. Mendes, A.X. Linhares
openaire +2 more sources
ABSTRACT.The horn fly (Haematobia irritans) is a major livestock pest in Brazil. Despite of the regional needs, no studies assessing its importance and subsidizing its control are available for the Brazilian northeast. The present study aimed to know the population dynamics and determine the infestation levels of H.
MEDEIROS, M.A. +5 more
openaire +1 more source

