Fasciolosis in growing female cattle from Berón de Astrada District (Corrientes, Argentina)
The objective of this work was to study the long term evolution of bovine fasciolosis, from growing females until they become 3 year-old heifers, performing the diagnosis in vivo by coprology and evaluating the effect of an albendazole treatment. Field tasks were carried out in a farm from Berón de...
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| Autores principales: | , , , , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_16684834_v18_n2_p136_Moriena |
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| Sumario: | The objective of this work was to study the long term evolution of bovine fasciolosis, from growing females until they become 3 year-old heifers, performing the diagnosis in vivo by coprology and evaluating the effect of an albendazole treatment. Field tasks were carried out in a farm from Berón de Astrada Department (Corrientes, Argentina), area where livestock infestation with Fasciola hepatica is enzootic. Initially, the investigated group was constituted by 78 animals, but at the end of the trial decreased to 30. Six samplings of feces for sedimentation studies (Dennis), the three first in coincidence with the three treatments made, were carried out. At day 0, a 3.85% of positive animals was verified. The rate was 1.30% on day 71 and 0% during the two successive samplings, at 172 and 230 days, confirming the effectiveness of the treatments. The interruption of albendazole administration caused fasciolosis to reappear at day, 553 with 7.69% of positive animals. This percentage ascended to 80% at day 850 (last sampling). As a conclusion, it is necessary to alert about the counteractive effects of the habitual practice of interrupting the treatment against F. hepatica in adult animals, because they are the most important disseminators of this parasitic illness. |
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