Table 4.
The mucus immune parameters of O. mykiss fed with different levels of ChA after a 60-day feeding trial.
| Parameter | Different experimental diets | ||||
|---|---|---|---|---|---|
| LYZ (U/mg pro) | ALP (U/mg pro) | Protease (U/mg pro) | Esterase (U/mg pro) | Ig (mg/mL) | |
| Control | 12.08 ± 0.45b | 26.64 ± 0.39c | 6.70 ± 0.37c | 1.83 ± 0.20b | 11.36 ± 0.44c |
| CA1 | 13.48 ± 0.61ab | 28.43 ± 0.69bc | 8.00 ± 0.34bc | 2.26 ± 0.14ab | 12.60 ± 0.49bc |
| CA2 | 15.17 ± 0.58a | 29.83 ± 0.44ab | 10.63 ± 0.55a | 2.43 ± 0.23ab | 14.63 ± 0.42ab |
| CA3 | 15.19 ± 0.60a | 31.33 ± 0.49a | 10.36 ± 0.69a | 2.90 ± 0.15a | 16.73 ± 0.56a |
| CA4 | 14.30 ± 0.47ab | 29.60 ± 0.66ab | 9.43 ± 0.48ab | 2.16 ± 0.14ab | 13.76 ± 0.55b |
Data in a column assigned with different letters signify significant difference between treatments (P < 0.05). Values are presented as mean ± SE. LYZ: lysozyme; ALP: alkaline phosphatase; Ig: total immunoglobulin.