Type of microbes Mean microbial count (log CFU ml-1) by sources of raw milk Mean (N=60) SD
Group A (n=6) Group B (n=27) Group C (n=27)
AMBC 4.93 (0.65)b 6.8 (0.31)a 7.33 (0.31)a 6.85 1.60**
Coliform 5.39 (0.43)b 6.33 (0.20)a 6.13 (0.20)a 6.14 1.29**
Staph.C 5.51 (0.41) 6.20 (0.19) 6.19 (0.19) 6.13 1.04ns
LABC 6.60 (0.45) 7.18 (0.21) 7.34 (0.21) 7.19 0.95ns
AMBC=aerobic mesophilic bacteria count, CC=coliform count, Stap. C=Staphylococci counts, LAB=lactic acid bacteria, SD=standard deviation, NS=non significant ,**significant at p< 0.05
Table 4: Mean (± SD) microbial counts of raw milk samples (Log10 cfu ml-1) collected from three Irgo producing groups in Hawassa city.