Fusaric acid content of swine feedstuffs
1993
Smith, T.K. | Sousadias, M.G.
A total of 48 samples of mainly Ontario-grown swine feedstuffs from the 1987-1992 crop years including whole swine feeds, dry corn, high-moisture corn, wheat, and barley were analyzed by HPLC for fusaric acid content. Average concentrations found were 35.76, 11.75, 26.37, 11.61, and 12.23 micrograms g-1, respectively. The highest concentration found was 135.64 micrograms g-1 in high-moisture corn. Nineteen of the samples were also analyzed for deoxynivalenol and zearalenone, and average concentrations found were 3.33 and 0.35 micrograms g-1, respectively. There appeared to be no correlation between concentrations of fusaric acid and those of other Fusarium metabolites. It was concluded that significant amounts of fusaric acid are present in some Canadian- and American-grown swine feedstuffs and, in light of their common pharmacological activity, that this metabolite should be included when feedstuffs are analyzed for Fusarium trichothecene mycotoxins.
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