Screening for residues of some antibacterials in milk and eggs produced in the regions of Dakar and Thiès in Senegal

Abstract

In order to contribute to the chemical safety of food, a study was carried out on the residues of antibacterials in milk and eggs produced in the regions of Dakar and Thiès (Senegal). Seventy-four (74) milk samples and 81 egg samples were taken in the Dakar and Thiès regions and analyzed by the CHARM TEST II method at the veterinary drug control laboratory (LACOMEV) in Dakar. The results of the analyzes gave general prevalences of 12.2%, 17.6% and 35.1% respectively for residues of streptomycins, tetracyclines, and betalactamines in milk. The results by region show that the prevalence of residues in milk are higher in Thiès than in Dakar for all the antibiotics sought. The results of the analyzes gave zero prevalence for residues of betalactamins and streptomycins and 3.75% for residues of tetracyclines in eggs. This study thus reveals the presence of antibacterial residues in livestock products intended for human consumption in the regions of Dakar and Thiès in Senegal and therefore the exposure of consumers to risks due to residues.

Keywords: Senegal, residues, antibacterials, milk, Eggs