intoxicação espontânea por ipomoea carnea subsp. fistulosa (convolvulaceae) em bovinos no pantanal matogrossense spontaneous ipomoea carnea subsp. fistulosa (convolvulaceae) poisoning of cattle in the brazilian pantanal

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ID: 201901
2007
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Abstract
Relata-se a intoxicação espontânea por Ipomoea carnea subsp. fistulosa (canudo, algodoeiro) em bovinos no Pantanal Matogrossense. As investigações iniciaram após a morte de 12 bovinos, de um rebanho de 500 animais, criados em uma extensa área intensamente infestada por I. carnea subsp. fistulosa com escassa disponibilidade de outra forragem. As mortes ocorreram entres os meses de junho e setembro de 2006. O quadro clínico foi caracterizado por emagrecimento e sinais neurológicos com dificuldade locomotora. Um bovino foi necropsiado sem que se observassem alterações macroscópicas significativas. Histologicamente havia tumefação e vacuolização celular, em neurônios, células acinares pancreáticas, tubulares renais e foliculares da tireóide. Bovinos com quadro clínico similar foram retirados da área invadida por I. carnea subsp. fistulosa e colocadas em áreas com pastagem nativa e de Brachiaria sp. e apresentaram melhora clínica após período de 15 dias.
A spontaneous Ipomoea carnea subsp. fistulosa (canudo, algodoeiro) poisoning of cattle in the county of Poconé, Brazilian Pantanal, is reported. The investigation began after 12 cattle had died from a flock of 500 animals maintained in an extensive area intensely infested by I. carnea subsp. fistulosa with scarce availability of other fodder plants. The deaths occurred from June to September of 2006. Clinical signs were loss of weight and neurological deficits with hypermetry and incoordination. No significant gross lesions were observed at postmortem examination of one bovine. Histological changes comprised widespread cytoplasmic vacuolation of neurons, cells of the thyroid, kidney and pancreas. Cattle with similar clinical picture, that had been removed from the area invaded by I. carnea subsp. fistulosa and placed into areas with native and Brachiaria sp. pasture, recovered clinically within 15 days.
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Authors ;Nadia A.B. Antoniassi;Eduardo V. Ferreira;Carlos E.P. dos Santos;Laura P. de Arruda;João Losano E. Campos;Luciano Nakazato;Edson M. Colodel
Journal AIP Conference Proceedings
Year 2007
DOI
10.1590/S0100-736X2007001000005
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2007001000005
Keywords
bovinos storage diseases

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