Table 3.
Treatment effects on fecal attributes and digestibility
| CON1 | SP2 | PP3 | SEM | Treatment | Age × Trt4 | Sex × Trt5 | |
|---|---|---|---|---|---|---|---|
| P value | P value | P value | |||||
| Fecal attributes | |||||||
| Fecal pH | 6.89b | 7.03a | 6.99ab | 0.08 | 0.2 | 0.02 | 0.02 |
| Fecal score6 | 2.94 | 2.97 | 2.97 | 0.07 | 0.9 | — | — |
| FO7, kg/d | 2.61 | 2.75 | 2.64 | 0.10 | 0.6 | — | — |
| DM digestibility, %8 | |||||||
| TFC | 44.7 | 41.0 | 43.6 | 2.6 | 0.4 | — | — |
| CR | 84.6a | 84.0a | 81.4b | 0.9 | 0.04 | — | — |
| Lig | 91.5 | 91.1 | 91.1 | 0.52 | 0.64 | — | — |
| iADF | 81.0 | 80.6 | 80.1 | 1.17 | 0.7 | — | — |
| iNDF | 76.7 | 76.2 | 75.7 | 1.3 | 0.7 | — | — |
| iLig | 71.8 | 69.8 | 69.9 | 2.5 | 0.7 | — | — |
Superscripts within row indicates least square means differences of treatments P < 0.05.
1Control, no feed additive.
2Smartpak.
3Platinum Performance.
4The interaction of age and treatment.
5The interaction of sex and treatment.
6Fecal scores were recorded daily on a scale of 1 to 5 with 1 = osmotic liquid diarrhea; 2 = mild diarrhea, feces are semiliquid but have some solid component; 3 = normal manure with soft consistency; 4 = normal feces in well-formed fecal balls; and 5 = very dry small fecal balls.
7Total fecal output.
8DM digestibility measurements were made on total fecal collections (TFC), chromium oxide (CR), lignin (Lig), indigestible ADF (iADF), indigestible NDF (iNDF), and indigestible lignin (iLig).