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RIA. Revista de investigaciones agropecuarias

On-line version ISSN 1669-2314

Abstract

Zeranol y metabolitos urinarios de zearalenona en bovinos para carne. RIA. Rev. investig. agropecu. [online]. 2015, vol.41, n.2, pp.149-154. ISSN 1669-2314.

The northern east Argentinean region is, on the basis of its geographic and environmental features, an area with a strong growing cattle potential. Supplementation of natural feeding with protein sources and silage constitutes a usual practice. The feeding supplements supports fungal growth and subsequent micotoxins evolvement as well. Production of zearalenone (ZEA) is particularly relevant because, among its related metabolites excreted in urine there is the zeranol. The zeranol presence in urine is strongly regulated by Argentinean law because it is considered an indicator of forbidden growing promoters using. The objective of the present work was to analyze the ZEA related metabolites excreted in urine of cows exposed to ZEA and/or zeranol in three ways: ZEA concentrated feeding, zeranol injection, and a combined exposure to ZEA concentrate feeding plus zeranol injection. The urine ZEA metabolites profiles and their time evolvement are given.

Keywords : Fusarium; Mycotoxins; Oestrogens; Zeranol; Zearalenone.

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