Open Access

Table 1.

The main causes of bacterial contamination of milk

No. Source of bacterial insemination The number of bacteria in 1 ml
1 The first trickles of milk are not seized 100 100‐ 1000
2 Air environment in the barn 100 ‐ 1500
3 Contaminated udder 500 ‐ 15000
4 Inadequate washing and disinfection of milking and dairy equipment 500000
5 Inadequate milk cooling 5000000

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