TY - JOUR ID - 168000 TI - Impact of heat treatment on the antimicrobial residues in raw goat's milk JO - Iraqi Journal of Veterinary Sciences JA - IJVS LA - en SN - 1607-3894 AU - Almashhadany, Dhary A. AD - Department of Medical Lab Science, College of Science, Knowledge University, Erbil, Iraq Y1 - 2021 PY - 2021 VL - 35 IS - 3 SP - 549 EP - 553 KW - B. subtilis KW - Disc diffusion assay KW - Winter KW - thermal stability DO - 10.33899/ijvs.2020.127137.1469 N2 - Although antibiotics are valuable drugs for treatment of bacterial and some parasitic infections, their presence in animal products have a potential public health hazard. This study investigated antibiotic residues in goat raw milk and thermal effect on residues. Samples were collected randomly from different farms and retail outlets in Erbil city from January 1st to June 30th 2019. The residues were detected by disc diffusion assay against Bacillus subtilis bacteria on Muller Hinton agar. The occurrence rates among milk samples was 14.9%, also these residues in the samples was 13.5% and 16.4% in farm samples and retail store samples, respectively. No significant differences were found between sampling sites (farms vs sale points). Regarding the seasonal variations, spring was found to be associated with gradual decrease in antibiotic residues frequency in milk. Boiling for 5 minutes was the most effective treatment (among pasteurization and microwave heating) that inactivated antibiotic residues in 57.7% of positive samples. Such occurrence rate of residues is alarming and require authorities to observe and validate the quality of raw milk introduced to markets for consumers. Further evaluation of antibiotic stability period in raw milk is highly recommended. UR - https://www.vetmedmosul.com/article_168000.html L1 - https://www.vetmedmosul.com/article_168000_14d68223028aca22778256e6d786b158.pdf ER -