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Survey of Romanian slaughtered pigs for the occurrence of mycotoxins ochratoxins A and B, and zearalenone

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Blood serum, kidney, liver and muscle sample per animal were collected from slaughtered pigs (n = 52). The samples were analysed for ochratoxin A (OTA) and B (OTB) by HPLC methods. Zearalenone (ZEA) in serum was analysed by enzyme immunoassay. A total of 98% serum samples were OTA positive in the range of 0.05-13.4 ng/ml and 85% contained under 5 ng OTA/ml. The incidences of OTA in kidney and liver were very similar (79%, 75%) with mean levels of 0.54 ng/g and 0.16 ng/g, respectively. The lowest incidence (17%) and the lowest mean level contamination (0.15 ng/g) were in muscle samples. The mean distribution in tissues followed the pattern serum > kidney > liver > muscle (100%: 26%: 8.5%: 2.57%). No kidney, liver or muscle sample was found OTA positive above the maximum admitted limit in Romania (5 ng/g). No sample was found to be positive for OTB. A very similar OTA contamination (mean = 4.19 ng/ml, coefficient of variation = 34.4%) was observed in the serum samples (n = 10) collected from the same farm. A possible difference in regional distribution of OTA in Romania is suggested. Zearalenone was detected only in 17.3% of the serum samples with a maximum concentration of 0.96 ng/ml. This study shows the presence of OTA and ZEA in Romanian slaughtered pigs at levels comparable to those reported in other countries.
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Keywords: OCHRATOXIN; PIG; RESIDUE; ZEARALENONE

Document Type: Research Article

Publication date: August 1, 2001

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