Conditioned food aversion to control Palicourea aeneofusca poisoning

Oliveira, Murilo Duarte de; Riet-Correa, Franklin; Silva, Genilson Barbosa da; Pereira, Walkleber dos Santos; Freire, Luis Flávio Souza; Medeiros, Rosane M.T.

doi:10.1590/0103-8478cr20131369

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…In the Treated Group, the animals received 175mg/kg LiCl via rumen tube 10 minutes after plant ingestion, whereas the goats in the Control Group received only water, following the same methodology. The aforementioned authors concluded that aversion to P. aeneofusca began five days after treatment commencement and persisted for up to 90 days (Oliveira et al 2014). Brito et al (2016) tested the technique of conditioned food aversion to P. aeneofusca in cattle.…”

Section: Use Of Conditioned Food Aversion To Prevent Ingestion Of Mfa-containing Plantsmentioning

confidence: 99%

Techniques for prevention and control of poisoning by sodium monofluoroacetate (MFA)-containing plants in ruminants

2019

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Monofluoroacetate (MFA)-containing plants cause sudden death associated with exercise in ruminants, and are responsible for significant losses in Brazilian livestock, estimated at 500,000 bovine deaths annually. Most of the times, the control and treatment of this type of poisoning are not efficient, because disease evolution is superacute, usually causing the death of the animal. Due to the difficulty in controlling this intoxication, several studies have suggested alternatives to prevent it, mainly by making animals resistant to the MFA present in these plants or by avoiding their consumption. This literature review addresses the techniques used experimentally to control the poisoning of ruminants by plants containing MFA. The first studies carried out in Brazil demonstrated that goats and sheep that continuously receive non-toxic doses of plant containing MFA show greater resistance to poisoning than untreated animals, and that this resistance can be transmitted by ruminal fluid transfaunation, suggesting that poisoning occurs due to the presence of bacteria that hydrolyze MFA in the rumen. Based on this hypothesis, several MFA-hydrolyzing bacteria were isolated (Enterococcus faecalis, Bacillus sp., Paenibacillus sp., Burkholderia sp., Cupriavidus sp., Staphylococcus sp., Ancylobacter sp., Ralstonia sp., Stenotrophomonas sp., Pigmentiphaga kullae, and Ancylobacter dichloromethanicus). When some of these bacteria were administered intraruminally, they provided the animal with a different level of protection against poisoning. However, it was observed that protection is gradually lost when the bacterium administration is interrupted. Consequently, to obtain more efficient protection, these bacteria should be administered continuously, probably in the form of probiotics. In another assay, MFA was administered to sheep at non-toxic doses to test the hypothesis that this substance could induce the multiplication of bacteria that hydrolyze it in the rumen. There was no increase in resistance to poisoning after administration of MFA; however, no signs of poisoning were observed when animals received trifluoroacetate and no clinical signs were verified when they were challenged with toxic doses of MFA; in contrast, all control animals presented clinical signs. These results suggest that trifluoroacetate induces the proliferation of MFA-degrading bacteria, and can be used in intoxication prophylaxis. The conditioned food aversion technique, using lithium chloride, has been successfully used experimentally to prevent ruminants from ingesting plants that contain MFA. Another alternative tested was the spraying of Amorimia septentrionalis with the endophytic bacterium Herbaspirillum seropedicae, which degrades MFA, resulting in decreased concentration of this compound in the plants. In conclusion, several experimental techniques have been proved efficient in the control and prophylaxis of MFA-containing plant poisoning; however, none of these techniques are available commercially. Further experiments, mainly in the field, should be carried out to adapt some of these techniques to the conditions of extensive breeding in the numerous areas where MFA-containing plants occur.

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Section: Use Of Conditioned Food Aversion To Prevent Ingestion Of Mfa-containing Plantsmentioning

confidence: 99%

Techniques for prevention and control of poisoning by sodium monofluoroacetate (MFA)-containing plants in ruminants

2019

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“…Trabalhos estão sendo conduzidos para verificar se é possível causar aversão a I. carnea utilizando o mio-mio como aversivo (Adrien et al 2013). Em outros experimentos tem sido induzida com sucesso aversão condicionada a Amorimia (Mascania) rigida em caprinos ) e ovinos (Pacífico da Silva & Soto-Blanco 2010) e a Palicourea aeneofusca em caprinos (Oliveira et al 2013b). Experimentos para induzir aversão a Leucaena leucocephala, que é uma planta palatável, induziram redução parcial do consumo, pois os animais continuaram a ingerir a planta em pequenas quantidades (Górniak et al 2008).…”

Section: Controle E Profilaxia Das Intoxicações Por Plantasunclassified

Importância econômica, epidemiologia e controle das intoxicações por plantas no Brasil

2013

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Pesq. Vet. Bras. 33(6) The main factors that determine the occurrence and frequency of plant poisoning include palatability, hunger, thirst, social facilitation, unawareness of the plant, access to toxic plants, toxic dose, ingestion period, variations in toxicity, and animal resistance/susceptibility. The results obtained in Brazil with the use of biological control, conditioned food aversion, selection of non-toxic varieties of forages, use of resistant animals to poisoning, and techniques to induce resistance are described.

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“…Recently, conditioned food aversion was used to prevent poisoning by plants in ruminants in Brazil (GORNIAK et al, 2008;OLIVEIRA et al, 2014). Various substances can be used including lithium chloride (LiCl).…”

Section: Introductionmentioning

confidence: 99%

“…When administered by a ruminal fistula or feeding tube immediately after consumption of the plant, LiCl induces aversion by producing gastrointestinal discomfort without major side effects (RALphS et al, 2001). In a previous study in goats, the possibility of inducing conditioned food aversion to P. aeneofusca, which persists for at least 90 days, was demonstrated (OLIVEIRA et al, 2014). However, this methodology has not been tested in cattle raised under extensive management conditions.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous and experimental poisoning of cattle by Palicourea aeneofusca in the region of Pernambuco and induction of conditioned food aversion

et al. 2015

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Conditioned food aversion to control Palicourea aeneofusca poisoning

Cited by 4 publications

References 6 publications

Techniques for prevention and control of poisoning by sodium monofluoroacetate (MFA)-containing plants in ruminants

Techniques for prevention and control of poisoning by sodium monofluoroacetate (MFA)-containing plants in ruminants

Importância econômica, epidemiologia e controle das intoxicações por plantas no Brasil

Spontaneous and experimental poisoning of cattle by Palicourea aeneofusca in the region of Pernambuco and induction of conditioned food aversion

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