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Martins H.M.L.,Ip Laboratorio Nacional Of Investigacao Veterinaria | Almeida I.F.M.,Direccao Geral de Veterinaria | Camacho C.R.L.,Ip Laboratorio Nacional Of Investigacao Veterinaria | Santos S.M.O.,Ip Laboratorio Nacional Of Investigacao Veterinaria | And 2 more authors.
Revista Iberoamericana de Micologia | Year: 2012

Background: Fumonisin B1 (FB1), fumonisin B2 (FB2), and overall mycotoxins feed contamination may cause several effects on crops production and animal health. The contamination occurred predominantly in corn and corn-based foods and feeds. Aims: This survey intends to provide the occurrence of fumonisins in swine and equine mixed feeds in Portugal, making an overview from 2007 to 2010. Methods: A total of 363 samples were analyzed, 258 from swine feed and 105 from horse feed with HPLC method. The detection limit was 50. μg/kg for FB1 and 100. μg/kg for FB2. Results: The overall results were 13% of FB1 occurrence from 2007 to 2010. FB1 was detected in about 17.0% of swine feed samples, being more frequent in 2010 (32.9%). In this year (2010) levels ranged between 66.7 and 3815.5. μg/kg.FB2 occurred only in 2010 in swine feed (6 samples, ranging between 104.0 to 467.2. μg/kg) and in horse feed (1 sample). Conclusions: This represents an increase in occurrence through the analyzed years, but this may not be a threat to animal health, once the values were below the recommended guidance values from European Commission. . © 2011 Revista Iberoamericana de Micología.

Martins H.M.,Ip Laboratorio Nacional Of Investigacao Veterinaria | Almeida I.,Direccao Geral de Veterinaria | Camacho C.,Ip Laboratorio Nacional Of Investigacao Veterinaria | Costa J.M.,Direccao Geral de Veterinaria | Bernardo F.,Polo Universitario da Ajuda
Mycotoxin Research | Year: 2012

Results of a 2-year (2009-2010) survey on the occurrence of ochratoxin A (OTA) in swine feed and in feed for laying hens in Portugal are reported. A total of 664 samples (478 swine feed, 186 feed for laying hens) were analyzed by a HPLC method using fluorescence detection with 2 μg kg-1 as detection limit. In swine feed, 31 samples (6.49%) were positive for OTA. In feed for laying hens, 12 samples (6.45%) were OTA-positive. The average levels of contamination were low, with median values of positive samples at 3-4 μg kg-1 in both years and both commodities, although a few samples contained exceptionally high levels (maximum 130 μg kg-1). Only the maximum level sample (swine feed) contained OTA at a concentration exceeding the European Commission guidance value. The remaining OTA concentrations found in feed samples were much lower than the guidance values. © 2012 Society for Mycotoxin Research and Springer.

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