Table 5.
Effect of dietary treatment and period on apparent total tract digestibility of organic matter, gross energy, and crude protein and fecal consistency score
| Treatmenta | Period | P-value | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Itemb | NC | BZA | BC50 | AGP | 1 | 2 | SEMc | Treatment | Period | Treatment × period |
| ATTD OM, % | 81.6† | 82.6*,† | 80.9† | 84.4* | 83.1 | 81.6 | 0.9 | 0.004 | 0.007 | 0.15 |
| ATTD GE, % | 79.0† | 80.1*,† | 78.2† | 82.3* | 80.1 | 79.7 | 0.9 | 0.001 | 0.41 | 0.20 |
| ATTD CP, % | 74.0†,‡ | 75.7*,† | 71.4‡ | 78.4* | 73.1 | 76.6 | 2.1 | <0.001 | <0.001 | 0.17 |
| Fecal consistencyb | 2.41† | 2.79*,† | 2.53† | 3.09* | 2.75 | 2.66 | 0.15 | <0.001 | 0.34 | 0.44 |
aPigs were fed experimental diets at weaning (28 d age) for 21 d. Treatments: NC: negative control (no additive); BZA: benzoic acid (0.60%); BC50: Benzocal-50 (0.20%); AGP: antibiotic growth promoter (Carbadox, 50 ppm). Period: period 1 = 7 d; period 2 = 14 d.
bMaximum value for the standard error of the mean.
cFecal consistency score: 1 = liquid; 2 = soft, unformed feces that does not retain shape; 3 = soft, moist feces that retains shape; 4 = firm, formed stool; and 5 = hard, dry pellet.
*,†,‡Means without a common superscript differ after Tukey multiple comparison test, P < 0.05.