Table 8.
Effects of treatments on growth performance of broiler chickens challenged with coccidiosis (Experiment 2).
| Experimental Treatments 1 | Statistics | ||||
|---|---|---|---|---|---|
| NC | CC | DC | SEM | p-Value | |
| From 0 to 7 d | |||||
| BW at 0 d, g | 40.6 | 40.6 | 40.6 | 0.021 | 0.524 |
| BW at 7 d, g | 145 | 147 | 148 | 2.872 | 0.794 |
| ADFI, g/d per bird | 18.0 | 18.4 | 18.3 | 0.551 | 0.764 |
| ADG, g/d per bird | 15.0 | 15.2 | 15.3 | 0.409 | 0.787 |
| FCR, g/g | 1.20 | 1.21 | 1.21 | 0.030 | 0.959 |
| From 8 to 14 d | |||||
| BW at 14 d, g | 378 A | 351 B | 355 B | 5.600 | <0.001 |
| ADFI, g/d per bird | 46.3 a | 41.5 b | 41.9 b | 1.206 | 0.002 |
| ADG, g/d per bird | 33.3 A | 28.5 B | 29.4 B | 0.523 | <0.001 |
| FCR, g/g | 1.39 | 1.29 | 1.43 | 0.132 | 0.402 |
| From 15 to 21 d | |||||
| BW at 21 d, g | 687 | 700 | 720 | 12.19 | 0.124 |
| ADFI, g/d per bird | 67.6 B | 76.2 A | 80.5 A | 1.951 | <0.001 |
| ADG, g/d per bird | 44.3 B | 50.2 A | 52.0 A | 1.592 | <0.001 |
| FCR, g/g | 1.56 | 1.53 | 1.55 | 0.033 | 0.733 |
| From 0 to 21 d | |||||
| ADFI, g/d per bird | 43.8 b | 44.9 ab | 46.3 a | 0.637 | 0.017 |
| ADG, g/d per bird | 30.7 y | 31.2 xy | 32.3 x | 0.553 | 0.060 |
| FCR, g/g | 1.43 | 1.44 | 1.45 | 0.016 | 0.567 |
1 NC = non-challenged; CC = control-challenged (coccidiosis); DC = DIC-supplemented-challenged (1 kg/t DIC). Values are means of 12 replicates. A–B Means within a row lacking a common superscript differ (p ≤ 0.01). a–b Means within a row lacking a common superscript differ (p ≤ 0.05). x–y Means within a row lacking a common superscript differ (0.05 < p ≤ 0.10). DIC = feed additive DICOSAN+; BW = body weight; ADFI = average daily feed intake; ADG = average daily gain; FCR = feed conversion ratio; SEM = standard error of the mean.