Table 3.
Effect of genotype, sex, and diet on selected carcass characteristics.
| Genotype | Sex | Diet | DOP (%) | Breast meat (%) | Abdominal fat (%) |
|---|---|---|---|---|---|
| Ross | Male | C | 76.08 | 28.35 | 0.89 |
| LP | 75.84 | 27.17 | 0.96 | ||
| Female | C | 76.18 | 27.30 | 1.04 | |
| LP | 77.14 | 29.13 | 0.98 | ||
| JA757 | Male | C | 74.97 | 21.25 | 2.35 |
| LP | 75.21 | 21.45 | 1.91 | ||
| Female | C | 74.34 | 22.08 | 3.45 | |
| LP | 74.58 | 23.41 | 2.77 | ||
| ISA Dual | Male | C | 67.93 | 13.60 | 2.37 |
| LP | 68.98 | 13.16 | 2.29 | ||
| Female | C | 69.27 | 13.91 | 3.67 | |
| LP | 68.80 | 13.96 | 3.04 | ||
| SEM | 0.33 | 0.57 | 0.10 | ||
| P-value | |||||
| Genotype | <0.001 | <0.001 | <0.001 | ||
| Sex | 0.411 | 0.034 | <0.001 | ||
| Diet | 0.258 | 0.429 | 0.003 | ||
| G∗S∗D | 0.107 | 0.355 | 0.668 | ||
Abbreviations: C, control group fed a conventional diet for growing chickens; D, diet; DOP, dressing out percentage; G, genotype; LP, chickens fed a low-protein diet; S, sex.