Brachiaria spp. poisoning of ruminants in Brazil
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Veterinária Brasileira (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2011000300001 |
Resumo: | Brachiaria species are the most important grasses for cattle production in Brazil. However, a limiting factor for the use of Brachiaria spp. is their toxicity. Most outbreaks of hepatogenous photosensitization are caused by B. decumbens; however B. brizantha, B. humidicola and B. ruziziensis can also cause poisoning. The poisoning affects cattle, sheep, goats and buffalo. Sheep are more susceptible than other animal species and the young are more susceptible than adults. There are differences in susceptibility among animals of the same species and it has been suggested that this resistance is genetic. Also has been suggested that buffalo and probably some sheep are resilient, i.e. when poisoned these animals have histologic lesions and high GGT serum concentrations, but do not show clinical signs. In general, saponin concentrations are higher in growing plants, but outbreaks occur all over the year, probably due to unexplained rise in saponin concentration in the plant. A clinical syndrome of progressive weight loss and death, without photosensitization, has been reported in cattle poisoned by B. decumbens. Main preventive measures are based on the selection of resistant or resilient animals and on the development of Brachiaria species or varieties with low saponin concentration. |
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Brachiaria spp. poisoning of ruminants in BrazilBrachiaria spp.foamy macrophageslithogenic saponinphotosensitizationprogressive weight lossresilienceresistanceBrachiaria species are the most important grasses for cattle production in Brazil. However, a limiting factor for the use of Brachiaria spp. is their toxicity. Most outbreaks of hepatogenous photosensitization are caused by B. decumbens; however B. brizantha, B. humidicola and B. ruziziensis can also cause poisoning. The poisoning affects cattle, sheep, goats and buffalo. Sheep are more susceptible than other animal species and the young are more susceptible than adults. There are differences in susceptibility among animals of the same species and it has been suggested that this resistance is genetic. Also has been suggested that buffalo and probably some sheep are resilient, i.e. when poisoned these animals have histologic lesions and high GGT serum concentrations, but do not show clinical signs. In general, saponin concentrations are higher in growing plants, but outbreaks occur all over the year, probably due to unexplained rise in saponin concentration in the plant. A clinical syndrome of progressive weight loss and death, without photosensitization, has been reported in cattle poisoned by B. decumbens. Main preventive measures are based on the selection of resistant or resilient animals and on the development of Brachiaria species or varieties with low saponin concentration.Colégio Brasileiro de Patologia Animal - CBPA2011-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2011000300001Pesquisa Veterinária Brasileira v.31 n.3 2011reponame:Pesquisa Veterinária Brasileira (Online)instname:Colégio Brasileiro de Patologia Animal (CBPA)instacron:EMBRAPA10.1590/S0100-736X2011000300001info:eu-repo/semantics/openAccessRiet-Correa,B.Castro,M.B.Lemos,R.A.Riet-Correa,G.Mustafa,V.Riet-Correa,F.eng2011-04-11T00:00:00Zoai:scielo:S0100-736X2011000300001Revistahttp://www.pvb.com.br/https://old.scielo.br/oai/scielo-oai.phpcolegio@cbpa.org.br||pvb@pvb.com.br0100-736X1678-5150opendoar:2011-04-11T00:00Pesquisa Veterinária Brasileira (Online) - Colégio Brasileiro de Patologia Animal (CBPA)false |
dc.title.none.fl_str_mv |
Brachiaria spp. poisoning of ruminants in Brazil |
title |
Brachiaria spp. poisoning of ruminants in Brazil |
spellingShingle |
Brachiaria spp. poisoning of ruminants in Brazil Riet-Correa,B. Brachiaria spp. foamy macrophages lithogenic saponin photosensitization progressive weight loss resilience resistance |
title_short |
Brachiaria spp. poisoning of ruminants in Brazil |
title_full |
Brachiaria spp. poisoning of ruminants in Brazil |
title_fullStr |
Brachiaria spp. poisoning of ruminants in Brazil |
title_full_unstemmed |
Brachiaria spp. poisoning of ruminants in Brazil |
title_sort |
Brachiaria spp. poisoning of ruminants in Brazil |
author |
Riet-Correa,B. |
author_facet |
Riet-Correa,B. Castro,M.B. Lemos,R.A. Riet-Correa,G. Mustafa,V. Riet-Correa,F. |
author_role |
author |
author2 |
Castro,M.B. Lemos,R.A. Riet-Correa,G. Mustafa,V. Riet-Correa,F. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Riet-Correa,B. Castro,M.B. Lemos,R.A. Riet-Correa,G. Mustafa,V. Riet-Correa,F. |
dc.subject.por.fl_str_mv |
Brachiaria spp. foamy macrophages lithogenic saponin photosensitization progressive weight loss resilience resistance |
topic |
Brachiaria spp. foamy macrophages lithogenic saponin photosensitization progressive weight loss resilience resistance |
description |
Brachiaria species are the most important grasses for cattle production in Brazil. However, a limiting factor for the use of Brachiaria spp. is their toxicity. Most outbreaks of hepatogenous photosensitization are caused by B. decumbens; however B. brizantha, B. humidicola and B. ruziziensis can also cause poisoning. The poisoning affects cattle, sheep, goats and buffalo. Sheep are more susceptible than other animal species and the young are more susceptible than adults. There are differences in susceptibility among animals of the same species and it has been suggested that this resistance is genetic. Also has been suggested that buffalo and probably some sheep are resilient, i.e. when poisoned these animals have histologic lesions and high GGT serum concentrations, but do not show clinical signs. In general, saponin concentrations are higher in growing plants, but outbreaks occur all over the year, probably due to unexplained rise in saponin concentration in the plant. A clinical syndrome of progressive weight loss and death, without photosensitization, has been reported in cattle poisoned by B. decumbens. Main preventive measures are based on the selection of resistant or resilient animals and on the development of Brachiaria species or varieties with low saponin concentration. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2011000300001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2011000300001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-736X2011000300001 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Colégio Brasileiro de Patologia Animal - CBPA |
publisher.none.fl_str_mv |
Colégio Brasileiro de Patologia Animal - CBPA |
dc.source.none.fl_str_mv |
Pesquisa Veterinária Brasileira v.31 n.3 2011 reponame:Pesquisa Veterinária Brasileira (Online) instname:Colégio Brasileiro de Patologia Animal (CBPA) instacron:EMBRAPA |
instname_str |
Colégio Brasileiro de Patologia Animal (CBPA) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Veterinária Brasileira (Online) |
collection |
Pesquisa Veterinária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Veterinária Brasileira (Online) - Colégio Brasileiro de Patologia Animal (CBPA) |
repository.mail.fl_str_mv |
colegio@cbpa.org.br||pvb@pvb.com.br |
_version_ |
1754122230887874560 |