Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle

Detalhes bibliográficos
Autor(a) principal: Silva Filho,Givaldo B.
Data de Publicação: 2020
Outros Autores: Chaves,Hisadora A.S., Albuquerque,Raquel F., Souza,Paulo E., Vieira,Maria E.Q., Nascimento,Ana L.O., Lima,Stephanie C., Mendonça,Fábio S.
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=S0100-736X2020000100001
Resumo: ABSTRACT: The aim of this work was to describe the epidemiological, clinical and pathological aspects of two outbreaks of spontaneous poisoning caused by Froelichia humboldtiana in cattle in Pernambuco, northeastern Brazil and reproduce experimentally this poisoning in cattle. Spontaneous poisonings of primary photosensitization occurred in two farms at the municipalities of Cachoeirinha and São Caetano and affected twenty-two adult bovines and two suckling calves after the rainy season. All bovines have recovered 21 days after they were removed from the pasture. To reproduce experimental poisoning, three cows and a calf were maintained in a pasture with 1ha composed by F. humboldtiana during 14 days. Clinical signs and skin lesions were similar in both spontaneous and experimental poisoning and consisted of cutaneous itching and hyperemia of non-pigmented areas of skin that evolved into edema, exudative dermatitis and extensive areas of skin necrosis. Serum levels of aspartate aminotransferase (AST), gamma glutamyltransferase (GGT), total, direct and indirect bilirubin were normal in all cattle examined. Histologically, lesions consisted of epidermal necrosis, hyperkeratosis with large amounts of degenerate neutrophils and acanthosis. In the dermis, edema and inflammatory infiltrate composed of eosinophils, lymphocytes and plasma cells mainly around the blood vessels were observed. In the experimental group, clinical signs of photosensitization were observed after the third day of F. humboldtiana consumption. The suckling calf displayed mild clinical signs of photodermatitis on the 8th day of the experiment. It was estimated that the average consumption of F. humboldtiana necessary to initiate clinical signs in each adult bovine was 78kg.
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spelling Spontaneous and experimental poisoning by Froelichia humboldtiana in cattleSpontaneous poisoningexperimental poisoningFroelichia humboldtianacattlepoisonous plantsskinphotodermatitispoisoningtoxic plantstoxicosesABSTRACT: The aim of this work was to describe the epidemiological, clinical and pathological aspects of two outbreaks of spontaneous poisoning caused by Froelichia humboldtiana in cattle in Pernambuco, northeastern Brazil and reproduce experimentally this poisoning in cattle. Spontaneous poisonings of primary photosensitization occurred in two farms at the municipalities of Cachoeirinha and São Caetano and affected twenty-two adult bovines and two suckling calves after the rainy season. All bovines have recovered 21 days after they were removed from the pasture. To reproduce experimental poisoning, three cows and a calf were maintained in a pasture with 1ha composed by F. humboldtiana during 14 days. Clinical signs and skin lesions were similar in both spontaneous and experimental poisoning and consisted of cutaneous itching and hyperemia of non-pigmented areas of skin that evolved into edema, exudative dermatitis and extensive areas of skin necrosis. Serum levels of aspartate aminotransferase (AST), gamma glutamyltransferase (GGT), total, direct and indirect bilirubin were normal in all cattle examined. Histologically, lesions consisted of epidermal necrosis, hyperkeratosis with large amounts of degenerate neutrophils and acanthosis. In the dermis, edema and inflammatory infiltrate composed of eosinophils, lymphocytes and plasma cells mainly around the blood vessels were observed. In the experimental group, clinical signs of photosensitization were observed after the third day of F. humboldtiana consumption. The suckling calf displayed mild clinical signs of photodermatitis on the 8th day of the experiment. It was estimated that the average consumption of F. humboldtiana necessary to initiate clinical signs in each adult bovine was 78kg.Colégio Brasileiro de Patologia Animal - CBPA2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2020000100001Pesquisa Veterinária Brasileira v.40 n.1 2020reponame:Pesquisa Veterinária Brasileira (Online)instname:Colégio Brasileiro de Patologia Animal (CBPA)instacron:EMBRAPA10.1590/1678-5150-pvb-6351info:eu-repo/semantics/openAccessSilva Filho,Givaldo B.Chaves,Hisadora A.S.Albuquerque,Raquel F.Souza,Paulo E.Vieira,Maria E.Q.Nascimento,Ana L.O.Lima,Stephanie C.Mendonça,Fábio S.eng2020-03-30T00:00:00Zoai:scielo:S0100-736X2020000100001Revistahttp://www.pvb.com.br/https://old.scielo.br/oai/scielo-oai.phpcolegio@cbpa.org.br||pvb@pvb.com.br0100-736X1678-5150opendoar:2020-03-30T00:00Pesquisa Veterinária Brasileira (Online) - Colégio Brasileiro de Patologia Animal (CBPA)false
dc.title.none.fl_str_mv Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
title Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
spellingShingle Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
Silva Filho,Givaldo B.
Spontaneous poisoning
experimental poisoning
Froelichia humboldtiana
cattle
poisonous plants
skin
photodermatitis
poisoning
toxic plants
toxicoses
title_short Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
title_full Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
title_fullStr Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
title_full_unstemmed Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
title_sort Spontaneous and experimental poisoning by Froelichia humboldtiana in cattle
author Silva Filho,Givaldo B.
author_facet Silva Filho,Givaldo B.
Chaves,Hisadora A.S.
Albuquerque,Raquel F.
Souza,Paulo E.
Vieira,Maria E.Q.
Nascimento,Ana L.O.
Lima,Stephanie C.
Mendonça,Fábio S.
author_role author
author2 Chaves,Hisadora A.S.
Albuquerque,Raquel F.
Souza,Paulo E.
Vieira,Maria E.Q.
Nascimento,Ana L.O.
Lima,Stephanie C.
Mendonça,Fábio S.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva Filho,Givaldo B.
Chaves,Hisadora A.S.
Albuquerque,Raquel F.
Souza,Paulo E.
Vieira,Maria E.Q.
Nascimento,Ana L.O.
Lima,Stephanie C.
Mendonça,Fábio S.
dc.subject.por.fl_str_mv Spontaneous poisoning
experimental poisoning
Froelichia humboldtiana
cattle
poisonous plants
skin
photodermatitis
poisoning
toxic plants
toxicoses
topic Spontaneous poisoning
experimental poisoning
Froelichia humboldtiana
cattle
poisonous plants
skin
photodermatitis
poisoning
toxic plants
toxicoses
description ABSTRACT: The aim of this work was to describe the epidemiological, clinical and pathological aspects of two outbreaks of spontaneous poisoning caused by Froelichia humboldtiana in cattle in Pernambuco, northeastern Brazil and reproduce experimentally this poisoning in cattle. Spontaneous poisonings of primary photosensitization occurred in two farms at the municipalities of Cachoeirinha and São Caetano and affected twenty-two adult bovines and two suckling calves after the rainy season. All bovines have recovered 21 days after they were removed from the pasture. To reproduce experimental poisoning, three cows and a calf were maintained in a pasture with 1ha composed by F. humboldtiana during 14 days. Clinical signs and skin lesions were similar in both spontaneous and experimental poisoning and consisted of cutaneous itching and hyperemia of non-pigmented areas of skin that evolved into edema, exudative dermatitis and extensive areas of skin necrosis. Serum levels of aspartate aminotransferase (AST), gamma glutamyltransferase (GGT), total, direct and indirect bilirubin were normal in all cattle examined. Histologically, lesions consisted of epidermal necrosis, hyperkeratosis with large amounts of degenerate neutrophils and acanthosis. In the dermis, edema and inflammatory infiltrate composed of eosinophils, lymphocytes and plasma cells mainly around the blood vessels were observed. In the experimental group, clinical signs of photosensitization were observed after the third day of F. humboldtiana consumption. The suckling calf displayed mild clinical signs of photodermatitis on the 8th day of the experiment. It was estimated that the average consumption of F. humboldtiana necessary to initiate clinical signs in each adult bovine was 78kg.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2020000100001
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.1590/1678-5150-pvb-6351
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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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.40 n.1 2020
reponame:Pesquisa Veterinária Brasileira (Online)
instname:Colégio Brasileiro de Patologia Animal (CBPA)
instacron:EMBRAPA
instname_str Colégio Brasileiro de Patologia Animal (CBPA)
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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)
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