Table 6.
Effect of dietary treatment on organ weights at day 10 and 24 post-weaning in dietary groups.
| Column Head | Dietary Treatment 1 | SEM | p-Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PC | NC | SP | SB | XLA | PC | NC | SP | SB | XLA | ||||
| Day 10 Post-Weaning | Day 24 Post-Weaning | Diet | Age | ||||||||||
| n | 20 | 20 | 20 | 20 | 20 | 18 | 20 | 19 | 17 | 20 | |||
| Bodyweight (kg) | 8.93 a | 8.32 a,b | 8.99 a | 8.30 a,b | 7.68 b | 13.61 | 12.98 | 13.66 | 12.97 | 12.36 | 0.419 | 0.025 | <0.001 |
| Absolute organ weight | |||||||||||||
| Full stomach (g) | 362.6 | 337.3 | 344.2 | 384.7 | 313.8 | 547.8 | 522.6 | 529.4 | 569.9 | 499.0 | 41.06 | 0.305 | 0.002 |
| Empty stomach (g) | 75.5 a | 71.7 a,b | 68.9 a,b | 73.8 a | 63.7 b | 115.1 a | 111.3 a,b | 108.5 a,b | 113.4 a | 103.2 b | 4.73 | 0.019 | <0.001 |
| Full small intestine (g) | 664.9 a | 655.6 a | 676.2 a | 646.5 a | 495.8 b | 1166.2 a | 1157.0 a | 1177.6 a | 1147.9 a | 997.2 b | 47.60 | <0.001 | <0.001 |
| Empty small intestine (g) | 408.7 a | 396.9 a | 417.0 a | 395.6 a | 320.0 b | 730.7 a | 719.6 a | 739.6 a | 718.2 a | 642.6 b | 27.88 | 0.003 | <0.001 |
| Full colon (g) | 379.2 a | 347.4 a | 334.1 | 343.9 a | 264.1 b | 651.6 a | 619.8 a | 606.5 | 616.4 a | 536.4 b | 26.36 | 0.002 | <0.001 |
| Empty colon (g) | 148.6 a | 140.3 a,b | 137.7 a,b | 138.9 a,b | 119.5 b | 248.6 a | 240.3 a,b | 237.7 a,b | 238.9 a,b | 219.5 b | 7.61 | 0.025 | <0.001 |
| Small intestine length (m) | 9.74 | 9.63 | 9.96 | 9.74 | 9.38 | 11.29 | 11.19 | 11.51 | 11.29 | 10.93 | 0.436 | 0.247 | 0.015 |
| Relative organ weight (%) | |||||||||||||
| Full stomach | 4.03 | 4.01 | 3.93 | 4.53 | 4.06 | 3.98 | 3.95 | 3.89 | 4.48 | 4.00 | 0.260 | 0.232 | 0.824 |
| Empty stomach | 0.85 a,b | 0.85 a,b | 0.79 a | 0.87b | 0.83 a,b | 0.86 a,b | 0.86 a,b | 0.80 a | 0.89 b | 0.84 a,b | 0.026 | 0.016 | 0.662 |
| Full small intestine | 7.36 a,b | 7.75 a | 7.50 a | 7.67 a | 6.76 b | 8.59 a,b | 8.98 a | 8.73 a | 8.89 a | 7.99 b | 0.262 | 0.005 | <0.001 |
| Empty small intestine | 4.48 a,b | 4.73 a | 4.64 a,b | 4.70 a | 4.31 b | 5.34 a,b | 5.59 a | 5.50 a,b | 5.57 a | 5.17 b | 0.155 | 0.029 | <0.001 |
| Full colon | 4.13 | 4.13 | 3.84 | 4.16 | 3.56 | 4.83 | 4.83 | 4.54 | 4.86 a | 4.25 b | 0.192 | 0.023 | 0.002 |
| Empty colon | 1.64 | 1.68 | 1.57 | 1.67 | 1.58 | 1.83 | 1.88 | 1.77 | 1.87 | 1.77 | 0.055 | 0.166 | 0.004 |
| Small intestine length | 1.13 | 1.16 | 1.14 | 1.18 | 1.19 | 0.83 | 0.87 | 0.85 | 0.89 | 0.90 | 0.031 | 0.193 | <0.001 |
1 PC = Positive control with medicinal zinc oxide, NC = Negative control, SP = Low protein diet with soy protein concentrate as primary protein source, SB = Low protein diet with soybean meal as primary protein source, XLA = Extra-low protein diet with non-marked amino acids, SI = Small intestine. a,b Values within a row with different superscripts differ significantly at p < 0.05.