Table 4.
Physical characteristics of Longissimus thoracis muscle of male buffaloes grazed on guinea grass (GG), on guinea grass and the legume Stylosanthes guianensis (GL), and fed with guinea grass and concentrate at an amount of 1.5% (GC1.5) and 2.0% (GC2.0) of body weight, respectively (N = 6)
| Parameter | Group | PSE | p-value | |||
|---|---|---|---|---|---|---|
|
| ||||||
| GG | GL | GC1.5 | GC2.0 | |||
| pH-value | ||||||
| 45 min | 6.64 | 6.58 | 6.62 | 6.49 | 0.09 | 0.700 |
| 24 h | 5.83 | 5.77 | 5.97 | 5.88 | 0.10 | 0.594 |
| Color | ||||||
| Lightness (L*) | 35.5 | 36.6 | 35.7 | 36.6 | 1.94 | 0.740 |
| Redness (a*) | 14.8bc | 13.8c | 17.1a | 16.1ab | 0.75 | 0.001 |
| Yellowness (b*) | 9.5a | 9.9a | 7.9ab | 7.4b | 1.29 | 0.005 |
| Water holding capacity | ||||||
| Drip loss (%) | 6.0ab | 5.7b | 9.6a | 9.2ab | 0.98 | 0.013 |
| Thawing loss (%) | 6.8b | 6.1b | 13.2a | 10.9ab | 1.34 | 0.003 |
| Grilling loss (%) | 31.2 | 32.4 | 33.8 | 38.6 | 2.82 | 0.299 |
| Boiling loss (%) | 31.4 | 29.8 | 32.9 | 33.5 | 2.02 | 0.580 |
| Shear force | ||||||
| Force (N) | 40.3 | 44.9 | 39.2 | 39.8 | 6.41 | 0.491 |
| Energy (mJ) | 155.8 | 170.6 | 133.5 | 140.8 | 24.50 | 0.084 |
a,b,c
Within rows, means with different superscripts differ (p<0.05, Tukey-test).