Table 7.
Effect of high dietary soluble non-starch polysaccharide (sNSP) level and xylanase supplementation on egg quality, measured after hens were fed the dietary treatments for 0, 28 or 56 d.
| Item | High sNSP without xylanase |
SEM | P-value | High sNSP with xylanase |
SEM | P-value | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0 d | 28 d | 56 d | 0 d | 28 d | 56 d | |||||
| Egg weight, g | 58.22b | 61.65a | 62.46a | 2.32 | 0.001 | 58.85b | 60.70ab | 61.53a | 1.95 | 0.021 |
| Breaking strength, N | 50.02a | 49.16ab | 46.24b | 2.48 | 0.011 | 50.06 | 49.67 | 47.32 | 3.65 | 0.274 |
| Shell deformation, nm | 0.289 | 0.296 | 0.288 | 0.01 | 0.277 | 0.296 | 0.295 | 0.298 | 0.01 | 0.957 |
| Albumen height, mm | 10.89 | 10.70 | 10.13 | 0.48 | 0.075 | 10.95a | 10.84ab | 10.39b | 0.44 | 0.037 |
| Haugh unit | 103.2a | 101.9a | 99.4b | 2.02 | 0.004 | 103.4a | 102.7ab | 100.8b | 1.83 | 0.022 |
| Yolk colour score | 9.90b | 11.34a | 11.84a | 0.49 | <0.001 | 9.53b | 11.66a | 12.16a | 0.54 | <0.001 |
| Yolk weight, g | 13.16c | 14.75b | 15.50a | 0.52 | <0.001 | 13.39b | 14.13a | 14.68a | 0.54 | <0.001 |
| Shell weight, g | 6.047 | 6.001 | 5.904 | 0.18 | 0.331 | 6.027 | 5.989 | 5.958 | 0.0.17 | 0.748 |
| Shell thickness, mm | 0.427 | 0.435 | 0.426 | 0.01 | 0.094 | 0.424 | 0.435 | 0.428 | 0.01 | 0.107 |
| Shell reflectivity, % | 23.68 | 24.00 | 24.36 | 1.45 | 0.836 | 23.12 | 24.24 | 24.27 | 1.58 | 0.254 |
a,b Means with no common superscript within a row and within a section differ significantly (P < 0.05).