EVALUATION OF THE PRESENCE OF ANTIMICROBIAL RESIDUES IN MILK IN THE STATE OF JALISCO, MEXICO

Revista de Salud Animal

González, Delia G¹  Noa, M¹  Reyes, Waldina¹  Landeros, Patricia¹  Noa-Lima, Elizabeth¹ 

[1] Universidad de Guadalajara, Jalisco, México

关键词: milk;    antimicrobials;    b-lactam;    tetracyclines;    sulfonamides;    nitrofurans;    chloramphenicolINTRODUCCIÓNSe ha demostrado que después de la administración de cualquier tratamiento veterinario;    los residuos del medicamento aparecen en los productos comestibles obtenidos de los animales tratados;   

DOI  :  

学科分类：兽医学

来源: Centro Nacional de Sanidad Agropecuaria

【 摘 要 】

The objective of this work was to determine the frequency of detection of some of the most frequently antimicrobials in raw and pasteurized milk in Jalisco, Mexico in one year. To this aim, a combination of the yogurt inhibition test as screening method was conducted simultaneously with the confirmation of the positive samples using Twin Sensor for b-lactam and tetracycline antibiotics and High Pressure Liquid Chromatography for sulfonamides, nitrofurans and chloramphenicol. From 264 tested samples, 26 (9.8%) gave positive results to the presence of antimicrobials. The largest percentage corresponded to pasteurized milk, with 20 (13.8 %) positive samples. In raw milk, the positive rate was lower (5%). August showed the overall highest percentage of contamination (27.3 %). From the 20 pasteurized milk samples analyzed, 6 contained b- lactam antibiotics, while only 2 of them were positive to tetracycline. Three raw milk samples were positive to b-lactam and other 3 to tetracycline residues. The 77 % of the positive samples to yogurt test contained at least 1 sulfonamide, identifying sulfamerazine as the most frequent. Both raw and pasteurized milk showed samples above the MRLs for sulfonamides. There were no positive samples to nitrofurans or chloramphenicol. It can be concluded that there is a problem with antimicrobial residues in milk for human consumption in the state of Jalisco, which violates the established Regulations concerning raw milk destined to human consumption.

【 授权许可】

CC BY-NC