Table 2.
Effects of ETEC K88 trial on the plate counts of total coliforms and enterobacteria in fecal samples (log cfu/g fresh matter [FM]) and F4 gene copy numbers of E. coli K88 in colon digesta (log of F4 gene copies/g FM).
| Treatmentsa | P-value | |||||||
|---|---|---|---|---|---|---|---|---|
| CN | CP | NN | NP | RSDb | Challenge | Probiotic | Interaction | |
| FECES | ||||||||
| Enterobacteria (cfu/gFM) | ||||||||
| Day 4 PI | 8.24 | 8.31 | 8.48 | 9.09 | 1.339 | 0.390 | 0.561 | 0.644 |
| Day 9 PI | 7.75 | 8.31 | 8.21 | 8.12 | 1.114 | 0.635 | 0.784 | 0.511 |
| Total Coliforms (cfu/gFM) | ||||||||
| Day 4 PI | 8.13 | 7.83 | 8.26 | 8.15 | 1.009 | 0.613 | 0.639 | 0.824 |
| Day 9 PI | 7.5 | 7.89 | 8.21 | 8.08 | 1.064 | 0.345 | 0.787 | 0.581 |
| COLON DIGESTA | ||||||||
| E. coli K88 (log copies/gFM) | ||||||||
| Day 4 PI | 5.38 | 6.00 | 4.25 | 4.14 | 1.464 | 0.029 | 0.692 | 0.571 |
| Day 9 PI | 4.70 | 5.11 | 4.78 | 4.90 | 0.556 | 0.786 | 0.285 | 0.556 |
a
Treatments: CN, challenged + no probiotic; CP, challenged + probiotic; NN, no challenge + no probiotic; NP, no challenge + probiotic.
b
Residual standard deviation. n = 8 for groups CN and CP, n = 4 for groups NN and NP.