2009
DOI: 10.1590/s0100-736x2009000700007
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Patogênese das lesões associadas à intoxicação por Ramaria flavo-brunnescens em bovinos

Abstract: RESUMO.-O estudo da patogênese da intoxicação pelo cogumelo Ramaria flavo-brunnescens em bovinos foi realizado através da avaliação retrospectiva de tecidos selecionados de nove casos espontâneos e quatro casos experimentais. Para a investigação da patogênese das lesões observadas na língua, esôfago, casco e cauda, foram avaliadas as alterações histopatológicas e aspectos histoquímicos e histoquímico-ultra-estruturais das lesões. As técnicas histoquímicas utilizadas foram o Tricrômico deMasson e a oxidação sel… Show more

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Cited by 4 publications
(1 citation statement)
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“…In alkali disease, caused by prolonged oral exposure of cattle to elevated dietary selenium, a defective keratinization results via low amounts of sulphur containing amino acids (cystine) in hard keratin structures leading to dyskeratosis of the hair shafts and dystrophic hooves (O'Toole & Raisbec 1995). Similarly, in Ramaria flavo-brunnescens poisoning, defective keratinization has been shown in the keratinized structures, mostly in the hard keratin (Trost et al 2009). In RTS, the defect in hair conformation is restricted to the pigmented areas of hair coat and occurs in crosses between black cattle breeds (e.g., Angus and Holstein) and some European breeds that are characterized by color dilution of the coat (e.g., Simmental, Charolais and Hereford) (Knaust et al 2016).…”
Section: Introductionmentioning
confidence: 99%
“…In alkali disease, caused by prolonged oral exposure of cattle to elevated dietary selenium, a defective keratinization results via low amounts of sulphur containing amino acids (cystine) in hard keratin structures leading to dyskeratosis of the hair shafts and dystrophic hooves (O'Toole & Raisbec 1995). Similarly, in Ramaria flavo-brunnescens poisoning, defective keratinization has been shown in the keratinized structures, mostly in the hard keratin (Trost et al 2009). In RTS, the defect in hair conformation is restricted to the pigmented areas of hair coat and occurs in crosses between black cattle breeds (e.g., Angus and Holstein) and some European breeds that are characterized by color dilution of the coat (e.g., Simmental, Charolais and Hereford) (Knaust et al 2016).…”
Section: Introductionmentioning
confidence: 99%