Perceptions of Factors Affecting Milk Quality and Safety among Large- and Small-Scale Dairy Farmers in Zimbabwe

Table 4

Mean rank score (ranks) for sources of contamination postmilking in commercial and small-scale dairy farms.

When contamination occurs	Large-scale	Small-scale	Significance
Milking machinery	2.72 (3)	2.79 (4)	NS
Storage	2.14 (1)	2.32 (2)	NS
Transportation	2.79 (4)	2.16 (1)
Processing	2.29 (2)	2.75 (3)

The lower the mean rank score (rank), the more important the source of contamination; ; ; NS: not significant ().