Table 1 Milk bacteriological outcomes of 104 udder quarters analyzed throughout the first month of lactation
Pathogens isolated | D0 | D3 | D7 | D15 | D30 |
|---|---|---|---|---|---|
Negative | 55 (52.88%) | 62 (59.62%) | 70 (67.31%) | 55 (52.88%) | 57 (54.81%) |
Staphylococcus chromogenes | 22 (21.15%) | 23 (22.12%) | 20 (19.23%) | 26 (25.00%) | 20 (19.23%) |
Staphylococcus aureus | 10 (9.62%) | 7 (6.73%) | 4 (3.85%) | 7 (6.73%) | 9 (8.65%) |
Staphylococcus hyicus | 8 (7.69%) | 0 (0.00%) | 5 (4.81%) | 5 (4.81%) | 5 (4.81%) |
Corynebacterium ulcerans | 4 (3.85%) | 5 (4.81%) | 1 (0.96%) | 4 (3.85%) | 6 (5.77%) |
Staphylococcus cohnii | 2 (1.92%) | 1 (0.96%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
Streptococcus dysgalactiae | 2 (1.93%) | 1 (0.96%) | 0 (0.00%) | 1 (0.96%) | 2 (1.92%) |
Rothia endophytica | 1 (0.96%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
Staphylococcus xylosus | 0 (0.00%) | 3 (2.88%) | 3 (2.88%) | 2 (1.92%) | 0 (0.00%) |
Acinetobacter nosocomialis | 0 (0.00%) | 1 (0.96%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
Staphylococcus capitis | 0 (0.00%) | 1 (0.96%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
Staphylococcus epidermidis | 0 (0.00%) | 0 (0.00%) | 1 (0.96%) | 0 (0.00%) | 0 (0.00%) |
Pseudomonas stutzeri | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 1 (0.96%) | 0 (0.00%) |
Streptococcus pluranimalium | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 2 (1.92%) | 3 (2.88%) |
Escherichia coli | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 1 (0.96%) | 1 (0.96%) |
Staphylococcus warneri | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 1 (0.96%) |
Trueperella pyogenes | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 1 (0.96%) |
Contaminated | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |