Calf Antibiotic and Sulfonamide Test (CAST) for Screening Antibiotic and Sulfonamide Residues in Calf Carcasses.

Studies the use of the Calf Antibiotic and Sulfonamide Test, a microbial inhibition screening test, to detect antibiotics and sulfonamides in calf carcasses. Bacillus megaterium as the indicator organism and Mueller Hinton agar as the growth medium; Comparison to Swab Test on Premises; Sensitivity and ability to detect a wider range of veterinary antimicrobial residual drugs at lower concentrations.