Evaluation of the Influence of Frequency of Milk Collection and Milking Dayshift on the Microbiological Quality of Raw Milk

Table 1

Mesophilic aerobic bacteria (MAB, CFU/mL) and psychrotrophic bacteria (PSY, CFU/mL) counts obtained according to the frequency of milk collection (24 and 48 h).

Microorganisms	Collection time (h)	Mean	Min.	Max.	Standard deviation	5th percentile	95th percentile	Coefficient of variation (%)
MAB	24	29,599	10,000	175,000	27,185	10,000	75,000	92
MAB	48	44,016	10,000	993,000	78,730	11,000	91,000	179
PSY	24	4,432	100	73,000	7,011	100	16,000	158
PSY	48	5,459	100	270,400	20,138	100	17,080	369