Abstract
This study had as objective to provide information on the behavior of calliphorideos in places of dairy cattle rearing, in the south of the Rio Grande do Sul. The work was carried out in Centro Agropecuario da Palma, pertaining to Universidade Federal de Pelotas (UFPEL). For capturing the calliphorideos, two WOT (Wind Oriented Trap) traps, baited with 250 g of decomposition bovine liver were used. The traps were displayed at 50 meters from the milking place, seven days per month, within the 10th and the 20th, and the captured specimens were removed from the traps and taken to the Laboratory of Insects Biology for selection, counting and identification. Within the period of March 2007 and the February 2008, 7,225 calliphorideos were captured, being Chrysomya megacephala the most predominant with 3.307 specimens (45.78%). Considering the monthly distribution of the calliphorideos collected in dairy bovine herds for twelve months, in the South of Rio Grande do Sul, monthly variation in the number of captured species was observed, being Chrysomya albiceps (2.445), Chrysomya putoria (90), Lucilia cuprina (118), Lucilia eximia (1.033), Lucilia sericata (41), Sarconesia chlorogaster (73), Calliphora lopesi (113), Hemilucilia semidiaphara (05). KEY WORDS: Behavior, cattle, Chrysomya megacephala, trap.
Highlights
This study had as objective to provide information on the behavior of calliphorideos in places of dairy cattle rearing, in the south of the Rio Grande do Sul
The traps were displayed at 50 meters from the milking place
the captured specimens were removed from the traps
Summary
O trabalho foi realizado no Centro Agrope cuário da Palma com 1.256 ha de área, pertencente à. Para a captura dos Calliphoridae, empregaram-se duas armadilhas do tipo WOT (wind oriented trap – armadilha orientada pelo vento) (Figura 1). Usaram-se 250 g de fígado bovino em decomposição, os quais eram colocados em um recipiente de plástico. Cada armadilha constituiu-se de um balde plástico de cor amarela com capacidade para oito litros, sendo removido o fundo, adaptando-se uma peneira plástica removível, que permitia a retirada dos espécimes coletados e também a colocação do recipiente com a isca. Colocou-se um telado plástico com uma pequena abertura, tipo cone invertido, que permitia a entrada dos espécimes na armadilha. As armadilhas ficaram expostas a cinquenta metros do local de criação de suínos e do local de ordenha dos bovinos durante sete dias por mês, entre os dias 10 e 20 de cada mês. Submeteram-se os resultados obtidos à analise de regressão polinomial, utilizando-se o programa estatístico SANEST (ZONTA & MACHADO, 1984)
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