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Table 6 Physicochemical quality of Morada Nova lamb meat of different sexes subjected to feed restriction

From: Effects of quantitative feed restriction and sex on carcass traits, meat quality and meat lipid profile of Morada Nova lambs

Variables Sexes Feed restrictions SEM P-value
Ent Cas Fem AL 30% 60% Sex Res Sex × Res
L* 39.7ª 38.2b 37.5b 38.2 38.4 38.8 0.244 0.003 0.657 0.659
a* 22.2 21.8 21.9 21.9 22.3 21.7 0.233 0.767 0.541 0.689
b* 9.83 9.43 8.80 9.36 9.93 8.77 0.220 0.197 0.126 0.866
C* 24.3 23.8 23.6 23.8 24.4 23.4 0.320 0.386 0.252 0.771
WHC, % 35.9 34.5 35.0 34.7 32.8 37.9 1.045 0.859 0.154 0.511
CWL, % 38.6 38.5 37.4 37.4 38.5 38.6 0.403 0.443 0.408 0.937
pH 5.61 5.60 5.66 5.57b 5.62ab 5.69ª 0.019 0.354 0.044 0.667
Shear force, N 42.9 46.1 39.2 44.0 41.4 42.8 1.623 0.236 0.808 0.702
TBARS 0.72 0.75 0.85 0.82 0.64 0.86 0.041 0.395 0.073 0.534
Moisture, % 76.5 75.9 75.8 75.4b 75.9ª 76.9ª 0.146 0.167 0.001 0.064
Protein, % 18.6 18.9 19.0 18.9 18.5 19.1 0.117 0.332 0.139 0.018
Fat, % 3.99 4.32 4.18 4.74ª 4.70ª 3.05b 0.107 0.468 <.0001 0.680
Ash, % 0.92 0.90 0.93 0.92b 0.87b 0.98a 0.009 0.327 <.0001 0.155
  1. Ent Entire males, Cas Castrated males, Fem Females, AL ad libitum intake, 30% 30% feed restriction, 60% 60% feed restriction, SEM standard error of the mean, Sex sexes and Res = feed restriction, Color parameter L* lightness, 0 black and 100 white, Color parameter a* redness, ranges from green (−) to red (+), Color parameter b* yellowness, ranges from blue (−) to yellow (+), Color parameter C* chroma; C* = (a*2 + b*2)1/2(MacDougall and Taylor, 1975), WHC water holding capacity, CWL Cooking weight losses, TBARS 2-thiobarbituric acid reactive substance, MDA malondialdehyde
  2. a b Means followed by different letters differ between sexes according to a Tukey-Kramer test (P < 0.05)
  3. a b Means followed by different letters differ between feed restrictions according to a Tukey-Kramer test (P < 0.05)