SciELO - Scientific Electronic Library Online

 
vol.11 número1Diferenças cromossômicas de sabaletas (Brycon henni) procedentes das bacias altas dos rios Cauca e PatíaOcorrência da miíase cavitária equina (Gasterophilus spp) e sua relação com as ulceras gástricas secundarias na mucosa escamosa em Temuco, Chile índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


CES Medicina Veterinaria y Zootecnia

versão On-line ISSN 1900-9607

Resumo

RINCON, Diego F.; DIAZ, Gonzalo J  e  GARDNER, Dale R. Detection of Ptaquilosides in different phenologic stages of Bracken fern (Pteridium aquilinum) and analysis of mik samples in farms with hematuria in Tolima, Colombia. Ces. Med. Vet. Zootec. [online]. 2016, vol.11, n.1, pp.72-77. ISSN 1900-9607.

Bracken fern or "Helecho Macho" (Pteridium aquilinum) is one of the most common weeds in the meadows of the mountain ranges of Colombia. Consumption of this palatable plant by bovines causes a disease known as bovine enzootic hematuria and esophageal neoplasia. The toxic effect of the plant in bovines is caused by the ptaquiloside, main carcinogenic toxin of this plant. In this study, eight samples of Bracken fern in different phenologic stages and 16 milk samples collected in two towns of Tolima, Líbano and Murillo, were analized. In both cases, Highperformance liquid cromatography (HPLC) coupled with Mass Spectrometry (MS) was used. In all Bracken fern samples analized, detectable levels of ptaquilosides were observed, ranging from 23 to 1194 µg/g, with a 342 µg/g mean. No detectable levels of ptaquilosides were found in the milk samples. The results show a great variation in the content of ptaquilosides depending on the phenologic stage and collection site of the plant. It is posible that the reported instability of the ptaquiloside and the processing given to the milk samples could have caused the lack of detection of the compound in milk

Palavras-chave : Helecho macho; milk; Pteridium aquilinum; ptaquiloside.

        · resumo em Português | Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons