Nutritional and Hygienic Quality of Raw Milk in the Mid-Northern Region of Algeria: Correlations and Risk Factors

Table 4

Frequency of pathogens and antibiotic residues in the milks studied.

Samples	Staphylococcus aureus	Sulfite-reducing Clostridia	Listeria monocytogenes	Antibiotic residues
	Number (%)	Number (%)	Number (%)	Number (%)
P1M1	9/30 (30%)	12/30 (40%)	8/30 (26,66%)	—
P1M2	15/30 (50%)	17/30 (56,66%)	9/30 (30%)	9/30 (30%)
P2M1	11/30 (36,66)	13/30 (43,33%)	7/30 (23,33%)	—
P2M2	19/30 (63,33%)	13/30 (43,33%)	8/30 (26,66%)	12/30 (40%)
M1	20/60 (33,33%)	25/60 (41,66%)	15/60 (25%)	—
M2	34/60 (56,66%)	30/60 (50%)	17/60 (28,33%)	21/60 (35%)