Measurement of β-agonist residues in retinal tissue of food producing animals

Abstract

This report presents the results of an investigation on the accumulation of β-agonist residues in the retinal tissue of food producing animals. Three different species, calf, pig and turkey, were treated with six different β-agonists and analysed for β-agonist residues in retinal tissue applying a newly developed retina preparation procedure which provides sufficient sample material for multiple analyses. The results show that all selected β-agonists accumulate in the retina, though in varying concentrations. The results are discussed on the basis of existing binding theories and with regard to their impact on the existing residue control strategy for β-agonists.