3. Results and discussion
All antimicrobials tested were found in feed, at significantly
different concentrations (p < 0.001). GEN, CRY and CAP were the
predominant compounds, accounting respectively for 77.8%, 9.90%
and 8.97% (Figs. 1 and 2). The mean content in all antimicrobials (S)
was 40.9±11.6mg kg1
(Table 2). Subtraction of GEN (Sminus GEN)
resulted in a mean content of 9.1 ± 1.84, where CRY and CAP