[Occurrence of Fusarium strains and their mycotoxins in corn silage. 7. Formation of deoxynivalenol (DON) in a silage corn plot artificially inoculated with Fusarium culmorum and the effect of silaging on the stability of the DON formed].
The formation of deoxynivalenol in a maize plot inoculated with Fusarium culmorum was studied over a growing season. Already three weeks after inoculation 4.9 mg/kg of DON were measured in the infected ears. The toxin concentration increased continuously up to harvest after eight weeks to a value of 261 mg/kg. Ensilage experiments in laboratory scale silos have shown that the DON content of naturally contaminated corn-cob-mix was not reduced during the ensilage process. It was concluded that infection of maize plants by toxin-producing Fusarium species followed by DON production in the field seems to be the most probable way of contamination of maize silage with this mycotoxin.
Lepom
P
P
Institut für Futterproduktion Paulinenaue, Akademie der Landwirtschaftswissenschaften der DDR.
Knabe
O
O
Baath
H
H
D000818:Animals; D005516:Food Microbiology; D005670:Fusarium / Q000378:metabolism*; D012820:Silage; D014255:Trichothecenes / Q000096:biosynthesis*; D003313:Zea mays
D014255:Trichothecenes; C007262:deoxynivalenol
Vorkommen von Fusarium-Arten und ihren Mykotoxinen auf Silomais. 7. Mitteilung. Bildung von Deoxynivalenol (DON) in einem künstlich mit Fusarium culmorum infizierten Silomaisbestand sowie der Einfluss der Silierung auf die Stabilität des gebildeten DON.