Intoxicação por Amorimia spp. em ruminantes

Duarte, Amélia Lizziane Centro de Saúde e Tecnologia Rural ); Medeiros, Rosane Maria Trindade Centro de Saúde e Tecnologia Rural ); Riet-Correa, Franklin

doi:10.1590/s0103-84782013005000081

Cited by 14 publications

(15 citation statements)

References 25 publications

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“…O controle da intoxicação por A. septentrionalis em bovinos é difícil. A remoção manual da planta é uma boa medida de controle para pequenas áreas, porém esse procedimento não é viável em áreas onde a planta está difundida (Duarte et al 2013(Duarte et al , 2013b. Outras formas de controle que têm sido experimentalmente testadas incluem a indução de aversão alimentar condicionada, a administração de doses não tóxicas da planta para induzir resistência e a administração intra-ruminal de bactérias aeróbicas que degradam o MFA (Camboim et al 2012a, 2012b, Duarte 2013a.…”

Section: Discussionunclassified

“…As plantas que causam morte súbita associada ao exercício estão dentre as mais importantes plantas tóxicas para ruminantes no Brasil (Tokarnia et al 2012, Duarte et al 2013b. Fazem parte desse grupo, plantas das famílias Rubiaceae, Bignoniaceae e Malpighiaceae.…”

Section: Introductionunclassified

“…No semiárido nordestino são importantes as intoxicações por A. rigida e A. septentrionalis. A. rigida é a Malpighiaceae mais conhecida, difundida e importante de toda a região nordeste do país (Duarte et al 2013b). Têm provocado surtos de intoxicações principalmente em bovinos (Medeiros et al 2002, Silva et al 2006, Vasconcelos et al 2008b) e menos freqüentemente em caprinos (Oliveira et al 1978) e ovinos (Pacífico da Silva et al 2008, Lago et al 2009.…”

Section: Introductionunclassified

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Fibrose cardíaca associada à intoxicação por Amorimia septentrionalis em bovinos

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Eight cattle were necropsied. Tissues were collected from abdominal and thoracic cavities, besides brain and spinal cord. The clinical changes consisted in apathy, prolonged sternal recumbency, reluctance to move, fatigue, tachypnea, tachycardia and positive venous pulse. The animals that were forced to move showed instability, muscular tremors and then a single fall followed by vocalizations, paddling and death in 5-7 minutes. Macroscopic changes consisted in pulmonary edema, globular heart with whitish areas, petechiae and ecchymosis in the epicardium, myocardium and papillary muscles. Microscopically there was an increase of eosinophilia of cytoplasm of cardiomyocytes, picnosis, cariorrexia, karyolysis, loss of striations and multifocal areas of cardiac fibrosis. In the kidney, there was hydropic vacuolar degeneration and necrosis of epithelial cells in convoluted tubules. The clinical signs presented by the cattle poisoned were similar to those previously described by plants containing MFA. The macroscopic and microscopic lesions described in the heart and kidneys are of great diagnostic value. A. septentrionalis is the main toxic plant of livestock interests in the studied regions due to direct and indirect economic losses in livestock that causes. INDEX TERMS: Poisonous plants, Amorimia septentrionalis, plant poisoning, sudden death, MFA, cardiac fibrosis, cattle.

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Section: Discussionunclassified

Section: Introductionunclassified

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Fibrose cardíaca associada à intoxicação por Amorimia septentrionalis em bovinos

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“…As a result, a couple of species (e.g., A. rigida and A. maritima; commonly referred either as A. rigida or A. aff. rigida) have been usually considered as responsible for bovine sudden death in different parts of the country (Tokarnia et al 1961, 1990, 1994, 1996, Tokarnia & Döbereiner 1973, 1985, Medeiros et al 2002, Silva et al 2006, Melo et al 2008, Vasconcelos et al 2008, Assis et al 2009, Garcez et al 2009, Lago et al 2009, Borboleta et al 2011, Nogueira et al 2011, Schons et al 2011, Lee et al 2012, Becker et al 2013, Duarte et al 2013, Neto et al 2013, Pessoa et al 2013, Barros & Meneguetti 2014 et al 2017). Recently, broad phytochemical studies have identified monofluoracetate as the compound responsible for Amorimia's toxicity to mammals (Lee et al 2012).…”

Section: Conservationmentioning

confidence: 99%

“…Recently, broad phytochemical studies have identified monofluoracetate as the compound responsible for Amorimia's toxicity to mammals (Lee et al 2012). In the past 60 years, some methods for controlling Amorimia outbreaks became widespread among Brazilian farmers and veterinarians, such as biological, manual, and mechanical control (Duarte et al 2013, Pessoa et al 2013. Since most species of Amorimia commonly occur associated with gallery forests and waterstreams (figure 4), I believe that deforestation, associated with the increase of removal of mature individuals by farmers, has drastically affected populations of Amorimia in the past six decades.…”

Section: Conservationmentioning

confidence: 99%

Taxonomic revision of Amorimia W.R. Anderson (Malpighiaceae)

Almeida

2018

Hoehnea

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-(Taxonomic revision of Amorimia W.R. Anderson (Malpighiaceae)). The taxonomic revision of Amorimia (Malpighiaceae) is presented, including typifi cations, and descriptions for all accepted species. The genus is endemic to Seasonally Dry Tropical Forests and Rainforests of South America, and its species can be distinguished by morphological details of leaves, indumenta, infl orescences, fl owers, and fruits. This study includes an identifi cation key for the subgenera and species of Amorimia, illustrations, distribution maps, conservation risk assessments, and comments on ecology, nomenclature, and taxonomy for all species. Additionally, I provide a key to differentiate Amorimia from the remaining genera of the Malpighioid clade.

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Rumen transfaunation

DePeters¹,

George²

2014

Immunology Letters

106

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The aim of this invited mini-review is to summarize the rumen transfaunation literature. Rumen transfaunation using the cud from a healthy donor animal to treat a sick recipient animal was practiced long before our understanding of rumen microorganisms. Around the mid-1900 s, scientists began to explore the benefits of rumen transfaunation and the associated microbial populations. Rumen transfaunation has been used clinically to treat indigestion and to enhance the return of normal rumen function following surgical correction of a left-displaced abomasum. Rumen transfaunation was also used to introduce unique rumen microorganisms into animals that were exposed to toxic compounds in plants. Rumen liquor contains chemical constituents that likely contribute to the beneficial effects of re-establishing a normal reticulo-rumen anaerobic fermentation. Recommendations for collecting rumen fluid, storage and volumes transferred are discussed. Rumen transfaunation is a common practice to treat indigestion on dairy and livestock operations. The support of a healthy microbial community in the digestive tract is also used for humans. Fecal microbiota transplantation has been used to treat digestive disorders in humans. Rumen transfaunation, although not widely studied with respect to mode of action, is an effective, practical, and easy method to treat simple indigestion of ruminants.

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Intoxicação por Amorimia spp. em ruminantes

Cited by 14 publications

References 25 publications

Fibrose cardíaca associada à intoxicação por Amorimia septentrionalis em bovinos

Fibrose cardíaca associada à intoxicação por Amorimia septentrionalis em bovinos

Taxonomic revision of Amorimia W.R. Anderson (Malpighiaceae)

Rumen transfaunation

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