Table 3. Mean value of meat yield characteristics of cockerels in different weeks.
Parameters | Treatments | p-value | ||
---|---|---|---|---|
Control | Antibiotic | Probiotic | ||
Dressing percentage (% BW) | 50.10 ± 0.60c | 51.30 ± 0.61b | 54.0 ± 0.20a | 0.0001 |
Blood weight (gm) | 3.95 ± 0.05a | 4.51 ± 0.01c | 4.35 ± 0.03b | 0.0001 |
Breast meat weight (gm) | 10.52 ± 0.1a | 10.22 ± 0.1b | 10.73 ± 0.12a | 0.003 |
Thigh+ Drumstick weight (gm) | 17.05 ± 0.58c | 17.83 ± 0.30b | 18.80 ± 0.26a | 0.006 |
Digestive tract weight (gm) | 10.93 ± 0.31a | 11.6 ± 0.07b | 11.46 ± 0.06b | 0.01 |
Skin weight (gm) | 6.05 ± 0.06bc | 5.98 ± 0.13a | 6.26 ± 0.12c | 0.044 |
Liver weight (gm) | 2.13 ± 0.04 | 2.22 ± 0.03 | 2.17 ± 0.04 | 0.063 |
Heart weight (gm) | 0.40 ± 0.04b | 0.50 ± 0.02a | 0.48 ± 0.04a | 0.014 |
Gizzard weight (gm) | 1.48 ± 0.02 a | 1.4 ± 0.02 b | 1.38 ± 0.03 b | 0.004 |
Pancreas weight (gm) | 0.21 ± 0.03 | 0.24 ± 0.03 | 0.22 ± 0.01 | 0.178 |
Spleen weight (gm) | 0.13 ± 0.01 | 0.14 ± 0.01 | 0.13 ± 0.01 | 0.236 |
Abdominal fat weight (gm) | 1.59 ± 0.05b | 1.79 ± 0.05a | 1.74 ± 0.05a | 0.008 |
Intestinal weight (gm) | 2.62 ± 0.03 | 2.58 ± 0.02 | 2.72 ± 0.11 | 0.096 |
Feather weight (gm) | 9.46 ± 0.08c | 8.52 ± 0.24a | 9.0 ± 0.1b | 0.001 |
BW means bodyweight,
means with different superscripts in the same row are differ significantly; Values indicates mean± SE; SE means Standard Errors.