Table II.

Causes of loss of data for bacteriological analysis of the initially infected cases of mastitis

Causes of loss of data	Number	%
Contamination of at least one sample	17	45.9
At least 1 sample missing	10	27.0
Samples not taken at the right time	6	16.2
Other treatments	2	5.4
Monitoring stopped	1	2.7
Cow dried off	1	2.7
Total	37	100