| Time (hr) relative to pasteurization |
Standard Plate Count (cfu/ml) |
Incubation |
Temperature (°C) |
| -1§ |
1,749,167 |
Farm |
NR |
| 0£ |
1194 |
Farm |
48 |
| 1 |
1323 |
Indoor¥ |
17 |
| 2 |
1780 |
Indoor |
18 |
| 3 |
1434 |
Indoor |
18 |
| 4 |
1747 |
Indoor |
18 |
| 5 |
1609 |
Indoor |
18 |
| 6 |
1340 |
Indoor |
17 |
| 7 |
1854 |
Indoor |
17 |
| 8 |
1210 |
Indoor |
17 |
| 10 |
1699 |
Indoor |
17 |
| 12 |
1904 |
Indoor |
17 |
| 24 |
9,234,633 |
Indoor |
18 |
| 1 |
1349 |
Outdoor |
7 |
| 2 |
1353 |
Outdoor |
7 |
| 3 |
1435 |
Outdoor |
11 |
| 4 |
1212 |
Outdoor |
12 |
| 5 |
1405 |
Outdoor |
10 |
| 6 |
1291 |
Outdoor |
10 |
| 7 |
1255 |
Outdoor |
10 |
| 8 |
1096 |
Outdoor |
10 |
| 10 |
1127 |
Outdoor |
15 |
| 12 |
1299 |
Outdoor |
10 |
| 24 |
992 |
Outdoor |
8 |
|
§ -1 indicates immediately pre-pasteurization; raw milk on the farm
£0 indicates immediately post-pasteurization
NR=Not recorded
¥-Indoor incubation was at room temperature during Spring |
| Table 5: Standard plate counts for bacteria in pasteurized milk samples over time post-pasteurization by incubation method and hourly temperature for Spring
season. Each value is the mean for 3 samples, one from each study farm. |
