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Table 12 Effects of dietary treatments and sex onflavor amino acid composition of LM (mg/100 mg DM basis)

From: Effects of different dietary energy and protein levels and sex on growth performance, carcass characteristics and meat quality of F1 Angus × Chinese Xiangxi yellow cattle

Item HE LE SEM E P E × P
  LP HP LP HP     
Lysine 4.61 3.72 4.06 4.25 0.46 ns ns ns
Cysteine 4.79 4.59 4.50 4.45 0.33 ns ns ns
Umami taste         
  Aspartic acid 13.86 13.76 13.35 12.15 1.44 ns ns ns
  Glutamic acid 21.93 19.54 18.67 20.41 1.19 ns ns *
  Total AA(U) 35.79 33.30 32.02 32.56 1.71 ns ns ns
Sweet taste         
  Threonine 4.52 4.09 4.16 4.18 0.27 ns ns ns
  Alanine 5.99 5.53 5.36 5.70 0.32 ns ns ns
  Glycine 4.92 4.32 4.29 4.38 0.32 ns ns ns
  Serine 9.21 6.23 5.86 5.76 1.37 ns ns ns
  Proline 2.14 2.13 2.02 2.08 0.21 ns ns ns
  Total AA(S) 26.79 22.30 21.69 22.10 1.41 ns ns ns
Bitter taste         
  Arginine 6.26 5.20 5.23 5.28 0.48 ns ns ns
  Histidine 1.26 0.64 0.74 0.64 0.27 ns ns ns
  Leucine 4.82 4.65 4.61 4.76 0.19 ns ns ns
  Isoleucine 3.19 3.37 3.05 3.14 0.18 ns ns ns
  Methionine 4.28 4.11 3.90 4.03 0.17 ns ns ns
  Phenylalanine 1.59 1.58 1.61 1.56 0.12 ns ns ns
  Tyrosine 3.82 2.94 3.41 3.54 0.42 ns ns ns
  Valine 3.53 3.05 2.94 2.94 0.35 ns ns ns
  Total AA(B) 28.74 25.54 25.52 25.89 1.21 ns ns ns
Total AA 100.73 89.46 87.79 89.25 3.51 ns ns ns
AA(U)/TAA, % 36.33 36.82 36.48 36.14 0.01 ns ns ns
AA(S) /TAA, % 26.09 25.12 24.71 24.86 0.007 ns ns ns
AA(B) /TAA, % 28.33 28.79 29.06 29.30 0.009 ns ns ns
  1. Significance: *(P < 0.05), ns not significant (P > 0.05).
  2. M = male, steer, F = female, heifer, E = energy, P = protein.
  3. Sex had no effect on amino acid composition of LM (P > 0.05).