Table 4.
Effects of dietary graded creatine nitrate (CrN) supplementation on carcass traits of broilers.
| Items | Treatments1 |
SEM |
P value |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Control | GAA600 | CrN300 | CrN600 | CrN900 | ANOVA | Linear2 | Quadratic2 | ||
| Dressing percentage (%) | 95.19 | 94.65 | 95.52 | 95.05 | 94.98 | 0.11 | 0.183 | 0.196 | 0.288 |
| Eviscerated yield (%) | 78.56 | 78.29 | 79.81 | 79.91 | 79.77 | 0.24 | 0.082 | 0.054 | 0.108 |
| Breast muscle yield (%) | 25.32 | 25.65 | 25.37 | 26.09 | 26.15 | 0.27 | 0.801 | 0.101 | 0.977 |
| Thigh muscle yield (%) | 17.93 | 19.10 | 18.29 | 18.83 | 18.90 | 0.20 | 0.346 | 0.037 | 0.691 |
| Abdominal fat percentage %) | 1.71 | 1.53 | 1.69 | 1.59 | 1.52 | 0.05 | 0.619 | 0.128 | 0.807 |
The data are represented as the mean value and pooled SEM (n = 6).
1
Control, basal diet; GAA600, basal diet supplemented with 600 mg/kg guanidinoacetic acid (GAA); CrN300, CrN600, and CrN900, basal diets supplemented with 300, 600, and 900 mg/kg CrN, respectively.
2
Orthogonal polynomials were used to estimate the linear and quadratic effects of dietary CrN supplementation among the control, CrN300, CrN600, and CrN900 groups.