Table 3.
Marketing Ages | ||||
---|---|---|---|---|
Items | 90 d | 100 d | SEM | p-Value |
Carcass yield (%) | 91.21 | 90.72 | 0.182 | 0.185 |
Semi-eviscerated yield (%) | 81.72 | 81.00 | 0.333 | 0.279 |
Eviscerated yield (%) | 67.72 | 67.80 | 0.303 | 0.894 |
Breast muscle (%) | 18.01 | 18.84 | 0.382 | 0.284 |
Leg muscle (%) | 23.56 | 24.84 | 0.475 | 0.179 |
Lean meat (%) | 41.57 | 43.68 | 0.802 | 0.192 |
Gizzard (%) | 2.65 | 2.35 | 0.086 | 0.079 |
Abdominal fat (%) | 2.90 | 2.93 | 0.208 | 0.931 |
Testis (%) | 1.60 | 1.86 | 0.121 | 0.291 |
Head (%) | 6.39 | 5.87 | 0.149 | 0.085 |
Paws (%) | 0.53 | 0.55 | 0.026 | 0.672 |
Live weight (g) | 1942.54 b | 2254.52 a | 24.152 | <0.001 |
Dressed weight (g) | 1771.93 b | 2045.22 a | 21.613 | <0.001 |
a, b Within a row, for each factor, different superscripts indicate significant differences (p < 0.05). Data represent three replicates, with 60 birds per replicate. Carcass yield, % = carcass weight/live weight × 100; eviscerated yield, % = eviscerated weight/live weight × 100; semi-eviscerated yield, % = semi-eviscerated weight/live weight × 100; breast muscle yield, % = breast muscle weight/eviscerated weight × 100; leg muscle yield, % = leg muscle weight/eviscerated weight × 100; lean meat yield, % = (breast muscle weight + leg muscle weight)/eviscerated weight × 100; gizzard yield, % = gizzard weight/(gizzard weight + eviscerated weight) × 100; abdominal fat yield, % = abdominal fat weight/(abdominal fat weight + eviscerated weight) × 100; head yield, % = head weight/eviscerated weight × 100; paw yield, and % = paw weight/eviscerated weight × 100. SEM: Standard error of the mean.