efeito da fermentação aeróbia na viabilidade de ovos de nematódeos trichostrongilídeos viability of trichostrongylid nematode eggs after aerobic fermentation

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ID: 259631
1996
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Abstract
O efeito da fermentação aeróbia na viabilidade de avos de nematódeos trichostrongilídeos foi avaliado em um sistema em que fezes de ovinos contendo ovos de Haemonchus contortus foram imersas em um tanque de fermentação dotado de aerador mecânico intermitente e fezes de bovinos com ovos de nematódeos trichostrongilídeos havendo predomínio de Cooperia sp. foram deixadas fermentar em depósitos a campo. Amostras dos ovos submetidas aos dois processos de fermentação foram colhidas em diferentes intervalos e cultivadas para extração das larvas infectantes. Ambos os processos de fermentação reduziram o número de ovos viáveis. Esterilização superior a 99% dos ovos foi obtida com 14 dias pós-exposição nos dois processos.
The viability of gastrointestinal nematode eggs after aerobicfermentation was evaluated in two experiments. In the first, feces of sheep containing Haemonchus contorts eggs were submitted to aerobic fermentation by mechanical air pumping in a 300m³-capacity tank. In the second, bovine feces positive for eggs of the most common gastrointestinal nematodes were kept in a bovine fecal deposit in the field. Fecal samples from the two experiments were cultivated for the extraction of infective larvae. Both processes reduced the number of viable eggs. Reduction in the number of viable eggs were higher than 99% in both cases after 14 days of exposure.
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Authors ;Terezinha Padilha Charles;John Furlong;Clóvis de Paula Santos
Journal Trials
Year 1996
DOI
10.1590/S0103-84781996000100022
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781996000100022
Keywords
sheep gastrointestinal nematodes haemonchus contortus bovinos cooperia spagricultureagriculture (general)

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