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
|
-
aSum of methionine and cysteine.