Table 1.

Descriptive data showing the prevalence of SCM at quarter level

Quarter	SCM
	Positive (%)	Negative (%)	Total (%)
LFQ	152 (50.67)	148 (49.33)	300 (100.00)
LHQ	119 (39.67)	181 (60.33)	300 (100.00)
RFQ	117 (39.13)	183 (60.87)	300 (100.00)
RHQ	131 (43.67)	169 (56.33)	300 (100.00)
Total	519 (43.25)	681 (56.75)	1200 (100.00)

SCM = sub-clinical mastitis; LFQ = Left fore-quarter; LHQ = Left hind quarter; RFQ = Right fore-quarter; RHQ = Right hind quarter.