Table 5.
Apparent ileal digestibility (AID) of crude protein (CP) and amino acids (AA) in rapeseed cake fed to growing-finishing pigs (%).
| Rapeseed Cake | Mean | SEM | p-Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Items | RSC1 | RSC2 | RSC3 | RSC4 | RSC5 | RSC6 | RSC7 | RSC8 | RSC9 | RSC10 | |||
| CP, % | 70.29 a | 52.19 de | 62.36 abc | 63.38 abc | 66.29 ab | 66.09 ab | 46.54 e | 54.76 cde | 60.46 bcd | 54.81 cde | 59.72 | 1.29 | <0.01 |
| Essential amino acids, % | |||||||||||||
| Arginine | 75.56 ab | 70.61 ab | 80.29 a | 77.19 ab | 75.38 ab | 78.09 ab | 75.59 ab | 73.39 ab | 79.82 ab | 68.94 b | 75.49 | 1.07 | 0.28 |
| Histidine | 73.22 cd | 72.62 cd | 76.80 bc | 68.01 d | 67.27 d | 73.71 cd | 81.92 ab | 86.27 a | 88.41 a | 83.20 ab | 77.14 | 1.26 | <0.01 |
| Isoleucine | 81.20 ab | 71.92 d | 72.45 cd | 80.09 ab | 76.50 bcd | 84.81 a | 78.38 abc | 78.73 ab | 81.65 ab | 66.13 e | 77.19 | 0.91 | <0.01 |
| Leucine | 72.30 ab | 73.35 ab | 76.54 ab | 75.59 ab | 79.96 a | 81.19 a | 77.42 a | 60.59 bc | 51.72 c | 53.25 c | 70.19 | 2.04 | <0.01 |
| Lysine | 64.34 a | 41.12 b | 65.21 a | 67.90 a | 71.61 a | 68.56 a | 39.94 b | 64.70 a | 64.12 a | 72.23 a | 61.97 | 2.16 | <0.01 |
| Methionine | 64.76 b | 53.52 bc | 46.08 c | 58.70 bc | 49.67 c | 52.17 c | 83.92 a | 81.18 a | 81.99 a | 81.05 a | 65.31 | 2.39 | <0.01 |
| Phenylalanine | 76.87 b | 74.26 b | 76.44 b | 67.30 c | 76.58 b | 75.29 a | 83.22 a | 88.51 a | 88.89 a | 85.34 a | 79.27 | 1.08 | <0.01 |
| Threonine | 68.20 ab | 64.24 ab | 66.55 ab | 62.81 b | 65.36 ab | 71.63 ab | 66.37 ab | 68.24 ab | 75.86 a | 69.58 ab | 67.88 | 1.16 | 0.37 |
| Tryptophan | 84.12 a | 80.20 ab | 73.75 c | 78.11 abc | 80.59 ab | 81.69 ab | 81.40 ab | 83.36 a | 75.91 bc | 79.98 ab | 79.91 | 0.68 | <0.01 |
| Valine | 81.62 a | 77.76 ab | 77.99 ab | 80.57 ab | 83.36 a | 79.91 ab | 68.88 bc | 82.89 a | 82.55 a | 59.86 c | 77.54 | 1.48 | <0.01 |
| Non-essential amino acids, % | |||||||||||||
| Alanine | 73.80 ab | 68.54 ab | 70.70 ab | 69.53 ab | 73.43 ab | 74.34 a | 64.28 b | 68.89 ab | 75.35 a | 67.39 ab | 70.62 | 0.96 | 0.20 |
| Aspartate | 73.74 | 67.17 | 71.78 | 69.05 | 72.67 | 73.33 | 66.47 | 67.98 | 73.88 | 66.22 | 70.23 | 0.88 | 0.21 |
| Cystine | 67.90 bc | 66.84 bc | 71.11 abc | 64.24 c | 76.15 abc | 60.58 c | 80.28 ab | 83.27 a | 82.67 a | 69.21 bc | 72.23 | 1.56 | <0.01 |
| Glutamine | 86.46 ab | 80.33 bc | 83.02 abc | 81.26 bc | 83.79 abc | 84.37 abc | 77.10 c | 82.10 bc | 89.62 a | 83.73 abc | 83.18 | 0.79 | <0.05 |
| Glycine | 74.65 a | 63.50 ab | 66.55 ab | 62.44 ab | 60.50 ab | 62.30 ab | 32.28 c | 35.01 c | 56.10 b | 57.49 b | 57.08 | 2.17 | <0.01 |
| Proline | 55.06 a | 47.90 ab | 52.08 ab | 63.70 a | 24.90 b | 50.26 ab | 44.90 ab | 63.77 a | 61.72 a | 46.77 ab | 51.11 | 2.83 | 0.33 |
| Serine | 78.99 abc | 69.58 cd | 75.54 abc | 71.68 bcd | 75.14 abcd | 69.31 cd | 65.26 d | 74.37 bcd | 80.84 ab | 84.47 a | 74.52 | 1.16 | <0.01 |
| Tyrosine | 79.09 a | 73.49 ab | 75.87 ab | 75.02 ab | 78.86 a | 79.40 a | 74.98 ab | 70.97 ab | 76.49 ab | 67.82 b | 75.20 | 0.92 | 0.09 |
CP, crude protein; a,b,c,d,e Means that values in the same row with no letter or the same letter are not different at p < 0.05.