Table 2.
Effects of spray-dried whole egg powder containing anti-F4 antibodies (SDWE) on growth performance.
| Item1 | Treatments2 |
SEM |
P-value |
|||
|---|---|---|---|---|---|---|
| CEP | SDWE1 | SDWE2 | Linear | Quadratic | ||
| Initial BW, g | 7,300 | 7,250 | 7,230 | 163.7 | ||
| Final BW, g | 8,700 | 8,820 | 9,180 | 259.0 | ||
| ADG, g | ||||||
| d 0 to 7 | 47.50 | 76.67 | 110.7 | 13.89 | 0.003 | 0.882 |
| d 8 to 14 | 203.3 | 199.6 | 214.1 | 25.90 | 0.772 | 0.777 |
| ADFI, g | ||||||
| d 0 to 7 | 137.2 | 143.8 | 164.6 | 10.69 | 0.037 | 0.504 |
| d 8 to 14 | 261.1 | 255.6 | 285.3 | 21.72 | 0.438 | 0.515 |
| G:F, g/g | ||||||
| d 0 to 7 | 0.34 | 0.49 | 0.67 | 0.08 | 0.004 | 0.911 |
| d 8 to 14 | 0.78 | 0.75 | 0.72 | 0.05 | 0.457 | 0.986 |
CEP = control egg powder; SEM = standard error of the mean.
1
d 0 to 7 = pre-challenge period; d 8 to 14 = post-challenge period; method of challenge = each piglet was orally challenged with 6 mL (2 × 109 cfu/mL) of freshly grown Escherichia coli-K88 (ETEC) inoculum at the back of oral cavity by using a polyethylene tube attached to a syringe as described previously (Kiarie et al., 2009).
2
CEP = basal diet plus 4 kg control egg powder/t feed (0); SDWE1 = basal diet plus 1 kg SDWE and 3 kg control egg powder/t feed (0.1%); SDWE2 = basal diet plus 4 kg SDWE/t feed (0.4%).