Validation and comparison of the Copan Milk Test and Delvotest SP-NT for the detection of antimicrobials in milk

Survey of pyrethroid, macrocyclic lactone and antibacterial residues in bulk milk tank from Minas Gerais State, Brazil

“…In agreement with our data, Moats et al (1995) reported an inconsistency between Charm Tetracycline screening test results when compared with high-pressure liquid chromatography to detect oxytetracycline. Le Breton et al (2007) also reported that some antimicrobials such as oxytetracycline, dihydrostreptomycin, trimethoprim and cefquinome were not detected or only detected with low sensitivity with the Delvotest SP NT antimicrobial screening kit.…”

“…Furthermore, several authors have noted the problem of false-positive results in certain microbiological inhibitor tests. One possible cause for false-positive results in these screening tests is the presence of indigenous antimicrobial agents and free fatty acids (Moats et al 1995, Molina et al 2003, Le Breton et al 2007. Although these screening methods (i.e.…”

Determination of antibiotic residues in the pasteurized milk produced in West Azerbaijan province, North West of Iran

“…In a study which investigated the performance of Copan and Delve tests in the diagnosis of specific antibiotics in milk, it was reported that both tests can recognize penicillin, keloksasillin, sulfomethazin, cephalexin and gentamicin in equal or less than the detection limit of Europe Unions standard [10] . They introduced both experiments, simple, practical and efficient to provide Europe Unions conditions.…”

“…However, the concentration of each of these compounds in less than the maximum amount is allowed, but when combined together they can be harmful to health. In this case, antibiotics may be assessed by Copan test and some manufacturers have designed the kits that can detect the presence of residual antibiotics in maximum residue limit [10] .…”

“…In animals the application of antibiotics in less than therapeutic concentrations (1)(2)(3)(4)(5)(6)(7)(8)(9)(10) mg/kg of feed) for long periods may cause an increase of animal growth rates [3] . It is suggested that this results in an improvement in the efficiency in which feed is digested and absorbed in the digestive system.…”