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Mycotoxin contamination of diets for beef cattle finishing in feedlot R. Bras. Zootec.
Custódio,Letícia; Prados,Laura Franco; Yiannikouris,Alexandros; Holder,Vaughn; Pettigrew,James; Kuritza,Leandro; Resende,Flávio Dutra de; Siqueira,Gustavo Rezende.
ABSTRACT The objective of this survey was to identify what mycotoxins were present in ingredients used in diets offered to beef cattle in feedlots and their concentrations. The survey covered 30 Brazilian feedlots located in the five major beef-producing states. Samples of total mixed ration (TMR) and ingredients were collected and analyzed for mycotoxin using ultra-performance liquid chromatography coupled to tandem mass spectrometry. Mycotoxin concentrations were further interpreted according to known species-specific sensitivities and normalized according to the principles of toxic equivalent factors (risk equivalent quantities - REQ) expressed in µg kg−1 of aflatoxin B1-equivalent. Forty percent of the visited feedlots had apparent fungi in TMR....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aflatoxin; Beef cattle; Feedlots; Fumonisin; Ingredients.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100724
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