Determinación de residuos de oxitetraciclina en muestras de carne bovina

Abstract

Abstract

The aim of this study was to determine the presence of oxytetracycline (OTC) residues in 149 samples of diaphragm muscle of beef cattle, in a commercial slaughterhouse in Antioquia (Colombia). The samples were processed and purified through solid phase extraction. OTC detection was performed using high performance liquid chromatography (HPLC), the Maximum Residue Limits (MRL) of the European Union was used as reference (MRL > 100 ppb). Forty-nine percent of the samples (n = 73) presented OTC residues, 8% (n = 12) of samples contained amounts of OTC beyond the MRL. Age, breed and origin were not associated with the presence of oxytetracycline residues (p > 0.05). Prevalence of residues is higher among female than male (p = 0.06). It is concluded that although the prevalence of OTC residues in bovine meat evaluated was low, it is clear that the implementation of good farming practices, a system of epidemiological surveillance and training programs for professionals, livestock producers, and staff responsible for the animals should be strengthened, in order to guarantee safe food to consumers.

Keywords:

HPLC

tetraciclinas

inocuidad

ganado bovino

músculo

HPLC

tetracyclines

food safety

cattle

muscle

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