Table 5.
Positive control | Phytase level (FTU/kg) | SEM | p-value | ||||||
---|---|---|---|---|---|---|---|---|---|
|
|
||||||||
0 | 500 | 1,000 | 20,000 | Treat | Linear | Quadratic | |||
DM (%) | 72.3ab | 71.6b | 72.3ab | 72.6ab | 74.5a | 0.59 | 0.02 | <0.01 | 0.31 |
GE (%) | 74.4b | 74.0b | 74.3b | 74.8b | 76.8a | 0.50 | <0.01 | 0.01 | 0.41 |
CP (%) | 74.1b | 74.0b | 74.1b | 75.7ab | 78.1a | 1.05 | 0.04 | 0.01 | 0.34 |
Ca (%) | 61.1b | 44.0c | 56.9b | 59.1b | 68.9a | 2.16 | <0.01 | <0.01 | <0.01 |
P (%) | 56.1b | 38.3c | 53.1b | 59.5b | 75.8a | 2.11 | <0.01 | <0.01 | <0.01 |
IP6 (%)1 | 19.4c | 11.1c | 58.6b | 64.1b | 80.0a | 2.89 | <0.01 | <0.01 | <0.01 |
IP6 in free-dried digesta (mg/kg) | 6.75c | 7.43c | 3.59b | 2.97b | 1.60a | 0.25 | <0.01 | <0.01 | <0.01 |
Essential AA (%) | |||||||||
Arginine | 87.9 | 89.3 | 88.9 | 89.3 | 89.4 | 0.58 | 0.39 | 0.86 | 0.97 |
Histidine | 81.3 | 80.6 | 80.7 | 81.6 | 79.6 | 1.98 | 0.92 | 0.47 | 0.74 |
Isoleucine | 82.4b | 83.4ab | 84.2ab | 85.0ab | 86.1a | 0.75 | 0.03 | 0.06 | 0.20 |
Leucine | 82.7 | 83.6 | 84.5 | 84.6 | 86.0 | 0.74 | 0.06 | 0.06 | 0.41 |
Lysine | 79.2b | 79.4b | 80.7ab | 81.6ab | 83.6a | 1.04 | 0.04 | 0.02 | 0.19 |
Methionine | 88.4 | 87.9 | 87.6 | 87.8 | 89.8 | 0.86 | 0.49 | 0.09 | 0.83 |
Phenylalanine | 82.6 | 82.9 | 82.9 | 84.3 | 84.7 | 0.79 | 0.25 | 0.18 | 0.24 |
Threonine | 65.8b | 68.8ab | 71.1a | 70.4a | 73.5a | 1.16 | <0.01 | 0.04 | 0.39 |
Tryptophan | 68.6 | 68.2 | 71.8 | 69.9 | 72.2 | 1.64 | 0.30 | 0.30 | 0.52 |
Valine | 76.0b | 77.1b | 79.6ab | 80.1ab | 81.4a | 1.15 | <0.01 | 0.06 | 0.11 |
Nonessential AA (%) | |||||||||
Alanine | 74.5 | 76.7 | 76.8 | 77.4 | 78.7 | 1.03 | 0.11 | 0.15 | 0.70 |
Aspartic acid | 75.5b | 76.2b | 78.1ab | 78.9ab | 81.3a | 1.03 | <0.01 | 0.01 | 0.12 |
Cystine | 62.3 | 60.9 | 61.1 | 61.4 | 65.3 | 1.98 | 0.69 | 0.17 | 0.93 |
Glutamic acid | 84.5 | 83.9 | 84.0 | 84.3 | 86.0 | 0.96 | 0.67 | 0.13 | 0.82 |
Glycine | 60.8 | 62.4 | 64.3 | 65.1 | 69.5 | 2.29 | 0.14 | 0.06 | 0.47 |
Proline | 73.7 | 73.9 | 71.4 | 76.6 | 77.8 | 2.04 | 0.27 | 0.16 | 0.44 |
Serine | 75.5b | 77.5ab | 78.4ab | 79.1ab | 80.4a | 0.95 | 0.02 | 0.12 | 0.32 |
Tyrosine | 81.1 | 78.4 | 80.7 | 82.4 | 81.0 | 1.12 | 0.17 | 0.77 | 0.02 |
IP6 means inositol hexaphosphate.
Means in the same row with different superscripts differ (p<0.05).