Table 4. Effects of mannan level of diet and β-mannanase supplementation on blood metabolites (d 56) of laying hens1.
Items | Mannan levels |
β-mannanase |
SEM3 | P-value2 |
|||||
---|---|---|---|---|---|---|---|---|---|
Low | High | 0 | 0.4 | 0.8 | M | E | M×E | ||
Total cholesterol (mg/dl) | 201 | 199 | 201 | 201 | 198 | 10.12 | 0.79 | 0.96 | 0.96 |
Triacylglycerides (mg/dl) | 1204 | 1203 | 1,203 | 1,207 | 1,201 | 21.58 | 0.94 | 0.95 | 0.9 |
Glucose (mg/dl) | 251 | 258 | 245b | 253ab | 265a | 7.28 | 0.2 | 0.04 | 0.98 |
Blood urea nitrogen (mg/dl) | 2.56 | 2.83 | 2.69 | 2.81 | 2.58 | 0.16 | 0.06 | 0.39 | 0.49 |
Total protein (g/dl) | 5.95 | 6.11 | 6.05 | 6.05 | 6.00 | 0.13 | 0.13 | 0.92 | 0.51 |
Values are mean of 8 replicates of 5 hens each.
P-values: M: effect of mannan level of diets; E: effect of enzyme (β-mannanase) and M×E: interaction between mannan level of diet and β-mannanase.
Standard error of the mean.