Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000600017 |
Resumo: | The aim of this study was to determine the duration of the resistance after the end of the ingestion of non-toxic doses of Crotalaria retusa seeds. Ten sheep were divided into 3 groups of 3 animals each and a control group with 1 sheep. To induce resistance, sheep in groups 1, 2 and 3 received 20 daily doses of 2g kg-1 of C. retusa seeds, followed by 7 daily doses of 4g kg-1. To determine the duration of resistance the sheep in groups 1, 2 and 3 were challenged orally, 3, 7 and 15 days, respectively, after receiving the last dose of 4g kg-1, with a single dose of 5g kg-1. Sheep of groups 1 and 2 did not develop overt signs of poisoning. Two sheep of group 3, challenged 15 days after the end of the resistance induction period, showed signs of acute poisoning and died. These results suggest that the induced resistance of sheep to acute poisoning by C. retusa seeds is of short duration, from 7 to 15 days. |
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Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seedsCrotalaria retusadehydropyrrolizidine alkaloidsmonocrotalinesheepresistance to poisoningThe aim of this study was to determine the duration of the resistance after the end of the ingestion of non-toxic doses of Crotalaria retusa seeds. Ten sheep were divided into 3 groups of 3 animals each and a control group with 1 sheep. To induce resistance, sheep in groups 1, 2 and 3 received 20 daily doses of 2g kg-1 of C. retusa seeds, followed by 7 daily doses of 4g kg-1. To determine the duration of resistance the sheep in groups 1, 2 and 3 were challenged orally, 3, 7 and 15 days, respectively, after receiving the last dose of 4g kg-1, with a single dose of 5g kg-1. Sheep of groups 1 and 2 did not develop overt signs of poisoning. Two sheep of group 3, challenged 15 days after the end of the resistance induction period, showed signs of acute poisoning and died. These results suggest that the induced resistance of sheep to acute poisoning by C. retusa seeds is of short duration, from 7 to 15 days.Universidade Federal de Santa Maria2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000600017Ciência Rural v.44 n.6 2014reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/S0103-84782014000600017info:eu-repo/semantics/openAccessMaia,Lisanka AngeloPessoa,Clarice Ricardo de MacedoRodrigues,Angélica FernandesColegate,StevenDantas,Antônio Flávio MedeirosMedeiros,Rosane Maria TrindadeRiet-Correa,Franklineng2014-09-05T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds |
title |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds |
spellingShingle |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds Maia,Lisanka Angelo Crotalaria retusa dehydropyrrolizidine alkaloids monocrotaline sheep resistance to poisoning |
title_short |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds |
title_full |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds |
title_fullStr |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds |
title_full_unstemmed |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds |
title_sort |
Duration of an induced resistance of sheep to acute poisoning by Crotalaria retusa seeds |
author |
Maia,Lisanka Angelo |
author_facet |
Maia,Lisanka Angelo Pessoa,Clarice Ricardo de Macedo Rodrigues,Angélica Fernandes Colegate,Steven Dantas,Antônio Flávio Medeiros Medeiros,Rosane Maria Trindade Riet-Correa,Franklin |
author_role |
author |
author2 |
Pessoa,Clarice Ricardo de Macedo Rodrigues,Angélica Fernandes Colegate,Steven Dantas,Antônio Flávio Medeiros Medeiros,Rosane Maria Trindade Riet-Correa,Franklin |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Maia,Lisanka Angelo Pessoa,Clarice Ricardo de Macedo Rodrigues,Angélica Fernandes Colegate,Steven Dantas,Antônio Flávio Medeiros Medeiros,Rosane Maria Trindade Riet-Correa,Franklin |
dc.subject.por.fl_str_mv |
Crotalaria retusa dehydropyrrolizidine alkaloids monocrotaline sheep resistance to poisoning |
topic |
Crotalaria retusa dehydropyrrolizidine alkaloids monocrotaline sheep resistance to poisoning |
description |
The aim of this study was to determine the duration of the resistance after the end of the ingestion of non-toxic doses of Crotalaria retusa seeds. Ten sheep were divided into 3 groups of 3 animals each and a control group with 1 sheep. To induce resistance, sheep in groups 1, 2 and 3 received 20 daily doses of 2g kg-1 of C. retusa seeds, followed by 7 daily doses of 4g kg-1. To determine the duration of resistance the sheep in groups 1, 2 and 3 were challenged orally, 3, 7 and 15 days, respectively, after receiving the last dose of 4g kg-1, with a single dose of 5g kg-1. Sheep of groups 1 and 2 did not develop overt signs of poisoning. Two sheep of group 3, challenged 15 days after the end of the resistance induction period, showed signs of acute poisoning and died. These results suggest that the induced resistance of sheep to acute poisoning by C. retusa seeds is of short duration, from 7 to 15 days. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-01 |
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=S0103-84782014000600017 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000600017 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-84782014000600017 |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.44 n.6 2014 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140545505067008 |