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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
12/06/2001 |
Data da última atualização: |
12/06/2001 |
Autoria: |
BARROS, A. T. M. |
Afiliação: |
Embrapa Pantanal (Corumba, MS). |
Título: |
Dynamics of Haematobia irritans irritans (Diptera: Muscidae) infestation on nelore cattle in the Pantanal, Brazil. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Memorias do Instituto Oswaldo Cruz, Rio de Janeiro, v.96, n.4, p.445-450, may., 2001. |
Idioma: |
Inglês |
Conteúdo: |
From june 1993 to may 1995, horn fly counts were conducted twice a month on untreated nelore cattle raised extensively in the Pantanal. Horn fly population showed a bimodal fluctuation and peaks were observed every year after the beginning (november/december) and at the end (may/june) of the rainy season, which coincided with mid-late spring and mid-late fall, respectively. Horn flies were present on cattle throughout the year in at least 64% of the animals. Mean horn fly numbers on animals did not exceed 85 flies/cow during peaks and were under 35 flies/cow in most of the remaining periods. The highest infestations (population peaks) were short and dropped suddenly within two weeks. Less than 15% of the animals in both herds could be considered as "fly-susceptible" - showing consistently higher infestations, or "fly-resistant" - showing consistently lower infestations. |
Palavras-Chave: |
Bovine; Brasil; Horn fly; Infestation; Mosca-dos-chifres; Sazonalidade; Seasonality. |
Thesagro: |
Bovino; Ecologia; Infestação. |
Thesaurus Nal: |
Brazil; ecology; Pantanal. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01647naa a2200277 a 4500 001 1806943 005 2001-06-12 008 2001 bl uuuu u00u1 u #d 100 1 $aBARROS, A. T. M. 245 $aDynamics of Haematobia irritans irritans (Diptera$bMuscidae) infestation on nelore cattle in the Pantanal, Brazil. 260 $c2001 520 $aFrom june 1993 to may 1995, horn fly counts were conducted twice a month on untreated nelore cattle raised extensively in the Pantanal. Horn fly population showed a bimodal fluctuation and peaks were observed every year after the beginning (november/december) and at the end (may/june) of the rainy season, which coincided with mid-late spring and mid-late fall, respectively. Horn flies were present on cattle throughout the year in at least 64% of the animals. Mean horn fly numbers on animals did not exceed 85 flies/cow during peaks and were under 35 flies/cow in most of the remaining periods. The highest infestations (population peaks) were short and dropped suddenly within two weeks. Less than 15% of the animals in both herds could be considered as "fly-susceptible" - showing consistently higher infestations, or "fly-resistant" - showing consistently lower infestations. 650 $aBrazil 650 $aecology 650 $aPantanal 650 $aBovino 650 $aEcologia 650 $aInfestação 653 $aBovine 653 $aBrasil 653 $aHorn fly 653 $aInfestation 653 $aMosca-dos-chifres 653 $aSazonalidade 653 $aSeasonality 773 $tMemorias do Instituto Oswaldo Cruz, Rio de Janeiro$gv.96, n.4, p.445-450, may., 2001.
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Embrapa Pantanal (CPAP) |
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