Oxytetracycline residues in retail chicken eggs in Ibadan, Nigeria

Abstract

Oxytetracycline residues in chicken eggs from five markets within Ibadan metropolis were determined by high-performance liquid chromatography following solid-phase extraction. Recovery of oxytetracycline was 80.5%-87.8%, whereas 75.2% of the samples contained detectable oxytetracycline with an overall mean residue concentration of 479.0 µg kg(-1). Residue concentrations from Iwo Road, Apata, Challenge, Ojoo and Bodija markets were 421, 460, 468, 568 and 476 µg kg(-1), respectively. Eggs from Ojoo market had the highest levels, whereas 68.8% of the samples contained residues above the Codex Alimentarius Commission maximum residue limit. The results are of public health interest as they indicate that a greater proportion of eggs being consumed in Ibadan could contain residues above the maximum residue limit, for which unregulated access and indiscriminate use of antibiotics by poultry farmers could be responsible. National surveillance of eggs and other animal products for antibiotic residue and appropriate regulation of antibiotic is recommended to ensure food safety for consumers.

Screening of Antimicrobial Residues among Table Eggs Using Disc Diffusion Assay at Erbil Governorate, Kurdistan Region, Iraq

“…Also, the result showed the association between the color of shell and location was not significant (P = 0.61). Locationbased variations were also reported even within the same country (Donkor et al, 2011;Olatoye & Kayode, 2012;Yang et al, 2016). Such reports are in good agreement with the findings of the present work.…”

Antimicrobial Residues in Food from Animal Origin—A Review of the Literature Focusing on Products Collected in Stores and Markets Worldwide

“…For a clearer evaluation, all studies with salmon, other fish from aquaculture, and shrimp were combined as seafood in the evaluation, as can be seen in Figure 2 . Cattle [ 17 , 18 , 19 , 20 , 21 , 22 ], Eggs [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ], Milk [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ], Pork [ 58 , 59 , 60 ], Poultry [ 58 , 59 , 60 , 61 , 62 , 63 , 64 ,…”

Antimicrobial Resistance in Food Animals and the Environment in Nigeria: A Review

“…The 80 studies excluded did not directly relate to the objectives or yielded information that could be subjected to organized peer review and data analysis. The 59 included studies were sorted into three categories of 42 antimicrobial resistance studies [14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55], 16 antimicrobial residue studies [56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71], and 1 antiseptic or disinfectants study [72]. The PRISMA-style flowchart was modified and used for this analytical review (Figure S1) [73].…”