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Molds and mycotoxins in poultry feeds from farms of potential mycotoxicosis

Author(s): A. M. Shareef

Journal: Iraqi Journal of Veterinary Sciences
ISSN 1607-3894

Volume: 24;
Issue: 1;
Start page: 17;
Date: 2010;
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Keywords: Molds | Mycotoxins | Mycotoxicosis | Poultry feed

Forty five finished poultry feed samples, collected from different broilers, broiler breeders and layers farms were divided into two parts, for mycological and mycotoxins examination. In counting of molds, dilute plate technique was used, whereas feed parts were used for mycotoxin estimation, they were subjected to four standard kits of Aflatoxin, Ochratoxin, T-2 toxin and Fumonisins. Mold counts were around 105 cfu.g-1 sample. Fourteen mold genera were recovered. From the systematic point of view, 2 genera belonged to Zygomycetes (i.e. Mucor, Rhizopus,), 1 genus belong to Ascomycetes (i.e. Eurotium); the majority, within so-called mitotic fungi (formerly Deuteromycetes), encompassed 11 genera (i.e. Acremonium, Alternaria, Aspergillus, Fusarium, Paecilomyces, Penicillium, Scopulariopsis,, Trichothecium, Ulocladium and Aerobasidium). The most frequent fungi were those from the genus Aspergillus. The concentrations of the four analyzed mycotoxins in the poultry finished feeds, and the percentages of the recovered mycotoxins, revealed that aflatoxins was recovered in 91.1% of the examined samples, with a mean value of 179.1µg/kg. The same percentage was found with Ochratoxins, but with lower mean concentration of 159.4µg/kg. In the third order were Fumonisins mycotoxins were in the third order, and they were recovered in 51.1% of the tested samples with a mean value of 127µg/kg. In the fourth order was T-2 toxin, with a percentage of 2.2% and a value of 50.0µg/kg.
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