Table 4.
Item | Control |
Diet 2 |
Diet 3 |
P-value2 |
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
B | G | B | G | B | G | T | S | T × S | ||||
Hot carcass weight, kg | 78.25 | 76.16 | 77.21 | 78.25 | 76.16 | 77.21 | 75.98 | 75.91 | 75.95 | ns | ns | ns |
Carcass yield, % | 76.99 | 75.16 | 76.08 | 77.21 | 75.16 | 76.19 | 74.76 | 74.83 | 74.80 | ns | ns | ns |
Carcass length, cm | 76.33 | 77.98 | 77.17 | 76.33 | 77.98 | 77.17 | 77.32 | 80.01 | 78.66 | ns | ns | ns |
Back-fat thickness, cm | 2.59 | 2.54 | 2.57 | 2.59 | 2.54 | 2.57 | 2.72 | 2.34 | 2.54 | ns | ns | ns |
Loin eye area, cm2 | 45.68b | 52.85a | 49.28B | 45.68b | 52.85a | 49.28B | 54.41b | 59.48a | 56.94A | * | ** | ns |
Longissimus dorsi muscle pH | ||||||||||||
pH45 (at 45 min post–slaughter) | 5.89b | 6.41a | 6.15 | 6.17 | 6.15 | 6.16 | 5.83b | 6.41a | 6.12 | ns | * | ns |
pH24 h (at 24 h post–slaughter) | 5.23 | 5.52 | 5.38 | 5.44 | 5.30 | 5.37 | 5.14 | 5.38 | 5.26 | ns | ns | ns |
Color parameters | ||||||||||||
Lightness (L∗) | 46.39 | 46.08 | 46.24A | 41.61b | 43.04a | 42.33B | 40.99b | 43.27a | 42.13B | * | * | * |
Redness (a∗) | 8.99b | 11.91a | 10.45 | 11.81 | 10.54 | 11.18 | 9.49 | 9.32 | 9.41 | ns | * | ns |
Yellowness (b∗) | 7.46b | 9.35a | 8.41B | 8.90 | 8.56 | 8.73A | 7.55 | 8.34 | 7.96B | * | * | * |
Water holding capacity | ||||||||||||
Drip loss, % | 5.48b | 7.36a | 6.42 | 4.81b | 6.13a | 5.47 | 7.00a | 6.15b | 6.58 | ns | * | ns |
Cooking loss, % | 30.96b | 33.40a | 32.18A | 32.16 | 33.04 | 32.60A | 29.99 | 30.10 | 30.05B | * | * | * |
Thawing loss, % | 11.71 | 12.90 | 12.31 | 11.89 | 11.65 | 11.77 | 10.66b | 13.89a | 12.28 | ns | * | ns |
Shear force, kg/cm2 | 6.24 | 7.34 | 6.79 | 6.21 | 6.57 | 6.39 | 6.64 | 6.76 | 6.70 | ns | ns | ns |
B = Barrows; G = Gilts.
a,b,A,B Means within rows with different superscripts differ (P < 0.05).
Control, diet contained without oil supplementation; Diets 2 and 3 consisted of the control diet supplemented with 3% oil, which contained a mixture of coconut and canola oil to UFA:SFA ratios of 2.5:1 and 5:1, respectively.
T = effect of treatment diet; S = effect of the gender of the pigs * (P < 0.05), **(P < 0.01).