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Table 11 Effects of dietary treatments and sex onamino 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     
Essential         
  Lysine 4.61 3.72 4.06 4.25 0.46 ns ns ns
  Valine 3.53 3.05 2.94 2.94 0.35 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
  Threonine 4.52 4.09 4.16 4.18 0.27 ns ns ns
  Total E 27.80 25.21 25.09 25.50 0.97 ns ns ns
Non essential         
  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 *
  Cysteine 4.79 4.59 4.50 4.45 0.33 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
  Arginine 6.26 5.20 5.23 5.28 0.48 ns ns ns
  Tyrosine 3.82 2.94 3.41 3.54 0.42 ns ns ns
  Total NE 72.93 64.25 62.69 63.75 2.76 ns ns ns
Total AA 100.73 89.46 87.79 89.25 3.51 ns ns ns
E/NE, % 38.12 40.00 40.02 40.58 0.015 ns ns ns
E/TAA, % 27.59 28.38 28.57 28.77 0.007 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).