Changes in microbial contents of fresh or stored pork meat were studied by the determination of the numbers of total aerobic mes- ophilic bacteria, Enterococci, Lactic acid bacteria (AB) and Entero- bacteriaceae by plate count agar (PCA) mannitol salt agar (MSA), de Man Rogosa Sharpe agar (MRS) and crystal-violet neutra-ned bile dextrose agar IVRB plates), respectively (Table 1) Bacteria plate counts of Meat Bwere significantly higher than those of Meat A (P< 0.05), indicating that within 6h at 30"C LAB, Enterococci and Enterobacteriaceae proliferated and dominated. However, the numbers of Enterococci, LAB and Enterobacteriaceae from Meat C and D were less than those of Meat Abut no significant differences in the total aerobic bacteria counts were observed. These results indicated that storage for 2 days at 4 and 20°C could help reduce the growth of Enterococci, LAB and Enterobacteriaceae. No correlations were found among the groups of bacteria pres- ent under different storage conditions and types of biogenic produced (Fig. 1) However, the predominant presence of LAB, Enterococci Enterobacteriaceae, resulting in higher cadav- erine and tyramine contents in Meat B, could be due to the storage temperature favoring their growth and hence decarboxylase en- zyme activities.