Item | Protein source | Protein level | SEM | P | ||||
---|---|---|---|---|---|---|---|---|
Cottonseed meal | Soybean meal | 12 % | 14 % | Source | Level | Source × Level | ||
Arginine | 1.31 | 1.33 | 1.20 | 1.44 | 0.04 | 0.82 | <0.01 | 0.50 |
Histidine | 7.87 | 8.14 | 7.32 | 8.69 | 0.37 | 0.62 | 0.02 | 0.82 |
Isoleucine | 0.78 | 0.86 | 0.72 | 0.92 | 0.05 | 0.27 | 0.01 | 0.93 |
Leucine | 0.79 | 0.79 | 0.76 | 0.82 | 0.03 | 0.84 | 0.16 | 0.94 |
Lysine | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | - | - | - |
Methionine | 0.80 | 0.89 | 0.84 | 0.85 | 0.03 | 0.05 | 0.87 | 0.13 |
Phenylalanine | 1.11 | 1.13 | 1.07 | 1.18 | 0.05 | 0.81 | 0.12 | 0.94 |
Threonine | 0.82 | 0.90 | 0.82 | 0.90 | 0.04 | 0.21 | 0.19 | 0.68 |
Tryptophan | 1.19 | 1.26 | 1.07 | 1.38 | 0.06 | 0.45 | <0.01 | 0.61 |
Valine | 1.13 | 1.06 | 0.99 | 1.20 | 0.05 | 0.36 | 0.01 | 0.17 |
Alanine | 11.40 | 12.47 | 10.78 | 13.10 | 0.65 | 0.26 | 0.02 | 0.19 |
Cysteine | 0.24 | 0.12 | 0.22 | 0.14 | 0.05 | 0.10 | 0.25 | 0.64 |
Glutamate | 0.36 | 0.42 | 0.33 | 0.44 | 0.04 | 0.23 | 0.04 | 0.65 |
Glycine | 3.73 | 4.54 | 3.91 | 4.36 | 0.33 | 0.11 | 0.36 | 0.38 |
Proline | 1.40 | 1.51 | 1.35 | 1.56 | 0.10 | 0.45 | 0.15 | 0.75 |
Serine | 1.26 | 1.15 | 1.18 | 1.23 | 0.08 | 0.35 | 0.65 | 0.77 |
Tyrosine | 1.52 | 1.50 | 1.40 | 1.63 | 0.07 | 0.83 | 0.03 | 0.76 |
Sulfur-containing amino acidsa | 0.64 | 0.67 | 0.67 | 0.65 | 0.03 | 0.49 | 0.72 | 0.36 |
Essential amino acids | 1.61 | 1.65 | 1.52 | 1.74 | 0.06 | 0.58 | 0.01 | 0.86 |
Non-essential amino acids | 2.28 | 2.50 | 2.18 | 2.59 | 0.12 | 0.23 | 0.03 | 0.26 |
Total amino acids | 1.93 | 2.05 | 1.83 | 2.15 | 0.08 | 0.30 | 0.02 | 0.38 |