Nachweis von Fusarien und deren Mykotoxinen in Futterkonservaten aus Grünlandbeständen mit differenzierter Bewirtschaftungsintensität |
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| Authors: | U Korn M Müller U Behrendt M Gossmann M Ditz |
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| Institution: | 1. Landwirtschaftlich-G?rtnerische Fakult?t, FB Phytomedixzin, Humboldt-Universit?t Berlin, Lentzeallee 55/57, D-14195, Berlin
2. Leibniz-Zentrum für Agrarlandschafts- und Landnutzungsforschung (ZALF) e.V. Müncheberg, Institut für Prim?rproduktion und Mikrobielle ?kologie, Gutshof 7, D-14641, Paulinenaue
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| Abstract: | Conservation forage (17 hay and 18 grass silage samples) from 15 farms with different intensities of grassland management
in the Federal State of Brandenburg were examined for contamination with fusaria and their mycotoxins. The numbers of culturable
filamentous fungi in hay were determined by plate counting andFusarium isolates were classified taxonomically. The mycotoxins Zearalenone (ZEA) and Deoxynivalenol (DON) were extracted from hay
as well as silage by different procedures and detected chromatographically (HPLC). The numbers of filamentous fungi in the
hay samples were 102 and 106 CFU/g FM independently of intensive or extensive management. Only fourFusarium species were identified.Fusarium culmorum, a potential toxin producing species, was most frequently detected (52% of all isolates). ZEA was found in two hay and four
silage samples (6-66 μg/kg), DON in three hay and seven silage samples (63–1290 μg/kg). There were no differences between
forage samples of extensive and intensive cultivated grassland of the year 2003 regarding numbers of fusaria and the content
of their mycotoxins.
Presented at the 26th Mykotoxin-Workshop in Herrsching, Germany, May 17–19, 2004. |
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| Keywords: | Fusarium spp deoxynivalenol zearalenone hay silage |
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