Abstract
A 160-kg Holstein steer was fed 52 mg1, equivalents/day (orally) for 5 consecutive days and then slaughtered. The liver, kidneys, spleen, heart and skeletal muscle (round) were retained and assayed for aflatoxin. The liver was cut into 14 samples and each was analyzed to determine the distribution of aflatoxin in liver. Afla-toxin levels in samples from the edges of the liver were 44% lower than averages of all the remaining samples, which were 25.0 ng B,, 15.4 ng M1 and 47.1 ng total aflatoxin/g; however, cross-sectional samples would give representative assay results. Lower total aflatoxin concentrations (16.0 ng, 18.5 ng and 12.9 ng/g) were found for heart, spleen and muscle, respectively. The kidneys had the highest level of aflatoxin (145.9 ng/g) with M1 levels (105.5 ng/g) 3.6 times the B, concentration (29.3 ng/g). In the other tissues, B1 concentrations were 1.6-2.9 times greater than aflatoxin M1.
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Stubblefield, R.D., Shotwell, O.L., Richard, J.L. et al. Transmission and distribution of aflatoxin in contaminated beef liver and other tissues. J Am Oil Chem Soc 58, A1015–A1017 (1981). https://doi.org/10.1007/BF02679315
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DOI: https://doi.org/10.1007/BF02679315