Enumeration of Listeria and Enteric Bacteria of Public Health Significance on Meat Tables Before and After Sales of Meat in Ibadan Municipal Abattoir, Nigeria

Abstract

A bacteriological assay was done on meat tables in Ibadan municipal abattoir, Nigeria. Swab samples from 1 cm of the surface were obtained from meat tables before and after the sales of meat. The 2 swab samples were analyzed for Listeria sp Count (LSC), Listeria monocytogenes Count (LMC), Coliform Count (CC), Enterobacteriaceae Count (EC) and Salmonella sp Count (SSC). The mean values for LSC, EC and SSC were 8.20±0.06 log10CFU/cm , 8.81±0.05 log10CFU/cm and 7.32±0.20 log10CFU/cm respectively 2 2 2 for before sales while after meat sales was 10.47±0.05 log10CFU/cm (LSC), 11.47±0.03 log10CFU/cm (EC) 2 2 and 11.37±0.04 log10CFU/cm (SSC). The mean values for before and after meat sales of Coliform Count 2 (CC) were 8.35±0.07 log10CFU/cm and 10.86±0.05 log10CFU/cm respectively while Listeria monocytogenes 2 2 Count (LMC) for before and after meat sales were 7.59±0.06 log10CFU/cm and 9.78±0.07 log10CFU/cm 2 2 respectively. The mean values (log10CFU/cm ) showed that EC> LSC>SSC for before meat sales while after 2 sales showed that EC>SSC>LSC. A significat difference (p<0.05) was observed in all the counts before and after meat sales. A positive correlation (R = 0.396) ensued for LMC and LSC before sales. Results reflect 2 poor hygienic conditions of the meat tables and non adherence to HACCP programs.