Parameter | Tretman | ||||
---|---|---|---|---|---|
Ia | IIa | Ib | IIb | ||
Average live weight (g) | 2190a | 1470b, a | 2240b, e | 2220b, f | |
Age at slaughter (d) | 38 | 38 | 39 | 38 | |
Carcass weight (g) | 1279,45 ±174,02 | 1223,3±116,38 | 1764,87±227,83 | 1400,70±130,01 | |
Weight (g) | Breast | 452,5±80,17 | 427,70±53,44 | 647,95±78,70 | 470,62±61,15 |
Drumstick | 389,89±51,19 | 392,9±39,20 | 536,40±88,41 | 476,78±48,20 | |
pH, Ultimate | Breast | 5,4±0,20a | 5,90±0,11b | 5,88±0,18b | 5,84±0,14b |
Drumstick | 5,71±0,30a | 6,44±0,17b | 6,45±0,26b | 6,51±0,09b | |
Water-holding capacity (%) | Breast | 30,53±7,27e | 29,44±10,95c | 36,58±7,70d | 42,78±10,93f, d |
Drumstick | 17,04±5,60a | 26,50±9,81b, c | 31,60±7,82b | 37,94±9,83b, d | |
Moisture (%) | Breast | 71,25 ± 2,75 | 70,74±3,79a | 71,48±2,58 | 74,29±1,32b |
Drumstick | 69,50±1,40a | 71,765±1,78 | 71,13±0,63b | 72,29±2,81 | |
Protein (%) | Breast | 21,18±0,96e | 21,65±0,75 | 22,18±0,25f | 22,29±0,71 |
Drumstick | 17,95±0,956 | 18,68±0,96 | 18,41±0,95 | 17,92±0,61 | |
Lipids (%) | Breast | 5,53±0,61a | 3,05±1,11b, c | 4,19±1,15b, d, e | 2,61±0,77b, f |
Drumstick | 9,63±0,63a | 5,19±0,45b, a | 9,85±1,98b | 8,16±2,25b | |
Ash (%) | Breast | 0,99±0,13a | 1,16±0,09b, e | 1,04±0,09f, a | 1,29±0,11b, f |
Drumstick | 0,92±0,05f | 1,026±0,05f, a | 0,91±0,06b, a | 1,01±0,07f, b | |
Fe total (mg/kg) | Breast | 4,06±1,36 | 4,34±0,55d | 3,94±0,42c | 4,29±0,31d |
Drumstick | 7,88±1,41 | 7,45±0,98 | 8,42±1,46 | 8,12±0,68 |