Determinación de aflatoxina M1 en hatos lecheros del Estado de México

Abstract

Aiming to determine the presence of aflatoxin M1 (AFM1) in milk, 84 samples were collected in different milk production units from Mexico State; in different seasons (dry and rainy). The analyte was determined by ELISA test, with the RIDASCREEN Aflatoxin M1® kit, results were expressed descriptively and compared with reference values. From the analyzed samples, 45% were positive. When establishing different concentration ranges, four samples were observed with a level of 0.001 <0.002; forty-two in the range of 0.003> 0.044; and, thirty-eight in the range of 0.50> 0.080. When obtaining 42 samples per season, 37 (0.075 ± 0.010 ppt) were positive for AFM1 in the period from August to February 2017, while from March to October 2018, only one sample was positive (with a level of 0.060 ppt). The AFM1 present in milk is a risk factor for consumers and livestock as well, therefore, measures in the production and storage of fodder and grains should be assessed before, during and after feeding the cattle.