1 research outputs found
Antibiotic Uptake by Vegetable Crops from Manure-Applied Soils
This
study quantified the uptake of five antibiotics (chlortetracycline,
monensin, sulfamethazine, tylosin, and virginiamycin) by 11 vegetable
crops in two different soils that were fertilized with raw versus
composted turkey and hog manures or inorganic fertilizer. Almost all
vegetables showed some uptake of antibiotics from manure treatments.
However, statistical testing showed that except for a few isolated
treatments the concentrations of all antibiotics in vegetable tissues
were generally less than the limits of quantification. Further testing
of the significant treatments showed that antibiotic concentrations
in vegetables from many of these treatments were not significantly
different than the corresponding concentrations from the fertilizer
treatment (matrix effect). All five antibiotic concentrations in the
studied vegetables were <10 μg kg<sup>–1</sup>. On
the basis of the standards for maximum residue levels in animal tissues
and suggested maximum daily intake based on body weight, this concentration
would not pose any health risk unless one is allergic to that particular
antibiotic