Data/hora: 17/06/2024 00:35:58

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: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (49639-1) - UPC - AP - -- - AP614.405/23D -  - 614.405 - DIS