Results of mycological and mycotoxicological investigations of corn-based feed for dairy cow diet | Rezultati mikoloških i mikotoksikoloških ispitivanja hraniva na bazi kukuruza namenjenih za ishranu krava muzara
2011
Škrinjar, M., Tehnološki fakultet, Novi Sad (Serbia) | Jakić-Dimić, D., Naučni institut za veterinarstvo Srbije, Beograd (Serbia) | Šošo, V., Tehnološki fakultet, Novi Sad (Serbia) | Blagojev, N., Tehnološki fakultet, Novi Sad (Serbia) | Vesković-Moračanin, S., Institut za higijenu i tehnologiju mesa, Beograd (Serbia) | Gerić, T., Institut za higijenu i tehnologiju mesa, Beograd (Serbia)
In this study, fungal contamination was determined as well as total aflatoxin B1(AB1), ochratoxin A (OTA) and zearalenon (ZEA) levels in corn-based feed samples obtained from four different farms in Serbia (n=35) during one year. Mycotoxins were detected in feed using the VICAM fluorometric method. It was determined that 97.14% of all samples were contaminated with moulds which belonged to following genera: Absidia, Acremonium, Aspergillus, Cladosporium, Geotrichum, Eurotium, Fusarium, Mucor, Mortierella, Oidiodendron, Penicillium, Rhizopus, Scopulariopsis, Syncephalastrum, Trichoderma, Ulocladium and Wallrothiella. A total of 58 different species were identified. Total mould count per 1 g ranged from 1.00 log cfu/g (dried corn silage – autumn, fresh corn silage - summer and corn grain silage - spring) to 7.32 log cfu/g (dried corn silage - winter). Mycotoxins were isolated from 28.5% of samples: ZEA was found in summer (220-240 microg/kg) and in spring (240 microg/kg) in concentrate samples; OTA was detected in winter in dried corn silage (16 microg/kg) and in spring (12 microg/kg); all samples were AB1 free.
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