Intoxicação experimental por Ipomoea asarifolia (Convolvulaceae) em caprinos e ovinos

Araújo, José Allan S. de; Riet-Correa, Franklin; Medeiros, Rosane M.T.; Soares, Mauro Pereira; Oliveira, Diego M.; Carvalho, Fabrício Braga Soares de

doi:10.1590/s0100-736x2008001000008

Cited by 32 publications

(41 citation statements)

References 4 publications

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“…Segundo Tokarnia et al (2000) e Araújo et al (2008) a planta é menos tóxica no período das chuvas e causa intoxicação com a folha verde ou seca. Os tremores, relatados por todos os entrevistados, foram o principal sinal clínico, sendo que estes desaparecem quando os animais deixam de ingerir a planta.…”

Section: Discussão E Conclusõesunclassified

“…O tratamento é a retirada do animal do local onde ocorre a salsa. O relato de que os cordeiros lactentes são afetados através do leite, não foi comprovado experimentalmente (Araújo et al 2008), entretanto, há evidências de que a toxina da planta seja eliminada através do leite . Deve ser feito o diagnóstico diferencial com outras plantas que afetam o sistema nervoso, principalmente Ipomoea carnea que, apesar de encontrada na região, não foi relatada como tóxica.…”

Section: Discussão E Conclusõesunclassified

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Plantas tóxicas para ruminantes e eqüídeos no Norte Piauiense

Mello

Oliveira

Carvalho³

et al. 2010

Pesq. Vet. Bras.

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RESUMO.-Este trabalho teve por objetivo realizar um levantamento sobre as plantas tóxicas para ruminantes e equídeos na Mesorregião Norte do Piauí. Foram feitas 71 entrevistas a médicos veterinários, engenheiros agrôno-mos, técnicos agrícolas e produtores de 16 municípios, entrevistando pelo menos quatro pessoas por município. As plantas comprovadamente tóxicas que foram apontadas com maior frequência na região estudada foram Ipomoea asarifolia, que causa intoxicações em pequenos ruminantes em todas as áreas visitadas. Stryphnodendron coriaceum pelas mortes que ocasiona é, aparentemente, a planta que causa maiores perdas econômicas na me- The objective of this study was to survey toxic plants for ruminants and equidae in northern Piauí. Seventy one persons were interviewed, including farmers, veterinary practitioners, agronomists, and agrarian technicians from 16 municipalities, performing at least four interviews in each municipality. The most common plant mentioned as a cause of poisoning was Ipomoea asarifolia, which is a well known cause of tremogenic disease in ruminants. Stryphnodendron coriaceum which causes digestive signs was referred as a common cause of death, and is probably the plant that causes most cattle deaths in the region. Enterolobium contortisiliquum was also mentioned as a frequent cause of digestive signs, abortion and photosensitization in cattle. Outbreaks of nephrosis caused by Thiloa glaucocarpa are frequent at the beginning of the raining season. Poisoning by the cyanogenic plants Manihot spp. e Piptadenia macrocarpa are a cause of peracute deaths. Other plants mentioned as toxic were Buchenavia tomentosa, Caesalpinia sp., Brunfelsia sp., Luetzelburgia sp., Hybantus ipecaconha, Phisalys angulata, and Spondias luta. Farmers report that goats are poisoned by the ingestion of the pods of Luetzelburgia sp., which causes digestive signs and death. The ingestion of the fruits of Buchenavia tomentosa is associated with digestive signs and and abortion in ruminants. Brunfelsia sp. is mentioned as a cause of nervous signs at the start of the raining season and donkeys are apparently more affected. The consumption of the fruits of Spondias luta are associated with diarrhea in goats. Recent unpublished experiments demonstrated the toxicity of Brunfelsia sp. as a cause of nervous signs and of Luetzelburgia sp. as a cause of digestive signs in goats. Experiments with other plants are necessary to confirm their toxicity.

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Section: Discussão E Conclusõesunclassified

Plantas tóxicas para ruminantes e eqüídeos no Norte Piauiense

Mello

Oliveira

Carvalho³

et al. 2010

Pesq. Vet. Bras.

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“…Emediato et al (2009a) also observed weight gains for Bergamácia ewes 60 days after postpartum, regardless of the inclusion of PF in the concentrate. For lactating ewes, weight loss is attributed to the difficulty in providing nutrients for feeding in amounts suitable for the matrices during this phase, since the energy demand increases more rapidly than the dry matter intake; therefore, the ewes use energy reservations to produce milk and stop accumulating body mass (Araújo et al, 2008).…”

Section: Coefficient Of Variation In Plots (Supplement)mentioning

confidence: 99%

Productive and reproductive performances of Santa Inês ewes fed diets supplemented with protected fat in the postpartum

Santos

Godoy

Souza

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effect of the inclusion of protected fat in the concentrate on the productive and reproductive performances of Santa Inês ewes in feedlot, up to 60 days after parturition. Thirty-six pregnant Santa Inês ewes, with an average age of 24 months and initial weight of 46.54±7.87 kg, were used. A completely randomized experimental design was used, with three treatments: CS, concentrated supplement; G5, concentrated supplement with 5.5% protected fat (PF); and G10, concentrated supplement with 13.5% PF. The productive performance parameters were evaluated every two weeks. At 60 days after parturition, the chemical composition of milk and the reproductive parameters were determined. The inclusion of PF in the concentrate did not affect the following variables: body weight, body condition score, service period, lambing to first estrus interval, and chemical composition of milk. The supplementation with or without PF allowed ewes to keep body weight until 60 days after parturition, which improved their body condition score. The inclusion of PF in the concentrate does not change the productive performance of confined Santa Inês ewes; however, it affects reproduction by resulting in lower probability rates of pregnancy.Index terms: body weight, ovine, polyunsaturated fatty acids, supplementation. Desempenhos produtivo e reprodutivo de ovelhas Santa Inês alimentadas com dietas suplementadas com gordura protegida no pós-partoResumo -O objetivo deste trabalho foi avaliar o efeito da inclusão de gordura protegida no concentrado sobre os desempenhos produtivo e reprodutivo de ovelhas Santa Inês em confinamento, até 60 dias após o parto. Utilizaram-se 36 ovelhas Santa Inês prenhes, com idade média de 24 meses e peso inicial de 46,5±7,9 kg. Utilizou-se o delineamento experimental inteiramente casualizado com três tratamentos: SC, suplemento concentrado; G5, suplemento concentrado, com 5,5% de gordura protegida (GP); e G10, suplemento concentrado, com 13,5% de GP. Os parâmetros de desempenho produtivo foram avaliados quinzenalmente. Aos 60 dias após o parto, determinaram-se a composição química do leite e os parâmetros reprodutivos. A inclusão de GP no concentrado não influenciou as seguintes variáveis: peso corporal, escore de condição corporal, período de serviço, intervalo do parto ao primeiro estro e composição química do leite. A suplementação com ou sem GP permitiu que as ovelhas mantivessem o peso corporal até 60 dias após o parto, o que melhorou o escore de condição corporal. A inclusão de GP no concentrado não altera o desempenho produtivo de ovelhas Santa Inês confinadas; entretanto, compromete a reprodução por resultar em menores taxas de probabilidade de prenhez.Termos para indexação: peso corporal, ovinos, ácidos graxos poli-insaturados, suplementação.

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“…Behaviour changes without tremors were also observed in weaned of mice ingesting I. asarifolia (Lopes et al 2014). In sheep the poisoning has been observed in nursing lambs that remain confined, without ingesting the plant, while their mothers ingested the plant while grazing without showing signs of disease (Araújo et al 2008, Freitas et al 2011). These observations suggest that the tremorgenic compound of the plant is eliminated in milk.…”

Section: Introductionmentioning

confidence: 95%

“…These observations suggest that the tremorgenic compound of the plant is eliminated in milk. However, this hypothesis was not confirmed in experiments in sheep (Araújo et al 2008) and goats (Freitas et al 2011) that ingested I. asarifolia before and/or after lambing without causing clinical signs in the offspring.…”

Section: Introductionmentioning

confidence: 96%

Elimination of the tremorgenic toxin of Ipomoea asarifolia by milk

et al. 2014

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RESUMO.-[Eliminação da toxina tremorgênica de INTRODUCTIONIpomoea asarifolia R. et Schult. (common name: salsa), family Convolvulaceae, is a plant native to South and Central America. In Brazil it is very common in the Amazon region, in the Northeast, and along the coast, from northern Brazil to the southern states of Rio de Janeiro and São Paulo (Kissmann & Groth 1992). I. asarifolia is a tremorgenic plant that causes poisoning in sheep (Döbereiner et al. 1960, Guedes et al. 2007), goats (Döbereiner et al. 1960, Medeiros et al. 2003, Guedes et al. 2007), cattle (Döbereiner et al. 1960, Barbosa et al. 2005) and buffalo (Barbosa et al. 2005). Clinical signs caused by I. asarifolia are similar than those caused by the indole-diterpene mycotoxins produced by different fungi (di Menna et al. 2012, Cawdell-Smith et al. 2010, but the tremorgenic toxin of the plant is unknown.In With the aim to determine if the tremorgenic toxin of Ipomoea asarifolia is eliminated in milk, three groups of Swiss female mice received, immediately after giving birth until weaning, a ration containing 20% or 30% of dry I. asarifolia. All the offspring of the females that received 20% or 30% I. asarifolia showed tremors 2-4 days after birth. The offspring of the females that received 20% I. asarifolia recovered 4-7 days after weaning. The offspring of the females that received 30% of the plant in the ration died while showing tremors before weaning or up to two days after weaning. It is concluded that the tremorgenic compound of I. asarifolia or its toxic metabolites are eliminated in milk, and that lactating mice may be used as a model for the determination of the toxic compound(s) in this plant.

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Intoxicação experimental por Ipomoea asarifolia (Convolvulaceae) em caprinos e ovinos

Cited by 32 publications

References 4 publications

Plantas tóxicas para ruminantes e eqüídeos no Norte Piauiense

Plantas tóxicas para ruminantes e eqüídeos no Norte Piauiense

Productive and reproductive performances of Santa Inês ewes fed diets supplemented with protected fat in the postpartum

Elimination of the tremorgenic toxin of Ipomoea asarifolia by milk

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