Table 2.
pH and color values of different tissues of growing lambs fed barley straw and concentrate containing sunflower meal and seed either untreated (control) or treated with malic acid and heat (MAH).
| Item | Concentrate | |||
|---|---|---|---|---|
| Control | MAH | SEM 1 | p = | |
| pH | ||||
| Longissimus | ||||
| 0 h | 6.76 | 6.77 | 0.043 | 0.945 |
| 24 h | 5.68 | 5.64 | 0.033 | 0.365 |
| Semitendinosus | ||||
| 0 h | 6.59 | 6.44 | 0.067 | 0.130 |
| 24 h | 5.77 | 5.75 | 0.044 | 0.743 |
| Color | ||||
| Subcutaneous fat (tail root) | ||||
| Lightness (L*) | 64.4 | 63.0 | 1.66 | 0.554 |
| Redness (a*) | 1.80 | 3.36 | 0.656 | 0.107 |
| Yellowness (b*) | 11.9 | 12.0 | 0.99 | 0.933 |
| Chromaticity (C*) | 12.0 | 12.8 | 0.97 | 0.590 |
| Hue* (H*) | 67.5 | 60.1 | 13.6 | 0.703 |
| Rectus abdominis | ||||
| Lightness (L*) | 44.1 | 42.7 | 1.27 | 0.448 |
| Redness (a*) | 7.39 | 10.4 | 0.739 | 0.010 |
| Yellowness (b*) | 5.66 | 8.26 | 0.930 | 0.061 |
| Chromaticity (C*) | 9.62 | 13.4 | 1.01 | 0.016 |
| Hue* (H*) | 35.5 | 37.3 | 3.65 | 0.724 |
| Longissimus | ||||
| Lightness (L*) | 38.5 | 36.6 | 1.48 | 0.385 |
| Redness (a*) | 8.60 | 10.2 | 0.77 | 0.147 |
| Yellowness (b*) | 12.4 | 13.3 | 0.43 | 0.144 |
| Chromaticity (C*) | 15.2 | 16.9 | 0.75 | 0.123 |
| Hue* (H*) | 55.8 | 53.1 | 1.65 | 0.264 |
1 SEM: standard error of the mean.