Fungal contamination and natural occurrence of ochratoxin A (OTA) in poultry feed | Zendy

Vesna Krnjaja | Zendy; Ž. Pavlovski | Zendy; M. Lukić | Zendy; Zdenka Škrbić | Zendy; Lj. Stojanovic | Zendy; Z. Bijelić | Zendy; Violeta Mandić | Zendy

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Fungal contamination and natural occurrence of ochratoxin A (OTA) in poultry feed

Author(s) -

Vesna Krnjaja,

Ž. Pavlovski,

M. Lukić,

Zdenka Škrbić,

Lj. Stojanovic,

Z. Bijelić,

Violeta Mandić

Publication year - 2014

Publication title -

biotechnology in animal husbandry

Language(s) - English

Resource type - Journals

eISSN - 2217-7140

pISSN - 1450-9156

DOI - 10.2298/bah1403481k

Subject(s) - ochratoxin a , biology , penicillium , ochratoxin , animal feed , veterinary medicine , mycotoxin , contamination , aspergillus , zoology , food science , botany , ecology , medicine

Total fungal count, the presence of potentially toxigenic fungi and natural occurrence of ochratoxin A (OTA) were studied in 30 poultry feed samples (14 samples of feed for chickens and 16 samples of feed for laying hens), which were collected from different farms in Serbia at the beginning of year 2014. The total number of fungi was determined by the method of dilution and OTA was detected using the imunoadsorption enzymatic assay (ELISA). In most of the samples of chickens feed (50%) the total number of fungi was 1 - 3 x 102 CFU g-1, and in feed for laying hens the highest number of samples (37.50%) had the total fungal count from 1.4 to 4.8 x 104 CFU g -1. The species of genera Aspergillus and Penicillium were identified as producers of OTA in 21.43% and 42.86% of chickens feed samples and in 68.75% and 25% of samples of feed for laying hens. The presence of OTA was detected in 100% of samples of feed for chickens and laying hens, with average concentrations of 34.40 μg kg-1 (feed for chickens) and 43.89 μg kg-1 (feed for laying hens). The total fungal count and content of OTA were not above the maximum allowed quantities, even though the presence of Aspergillus and Penicillium species was found in a large number of samples (up to 68.75%). These results indicate that the tested samples of poultry feed were mycologically and mycotoxicologically correct. [Projekat Ministarstva nauke Republike Srbije, br. TR-31023 i br. TR-31033]

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