Table 4.
Effect of hen genotype A, B, C, and D, age, and their interaction on LS-means of egg albumen parameters between the 21st and 54th week of age, n = 180 for genotype A and 270 for genotypes B, C and D.
| Genotype (G) | A | B | C | D | Effect of | SEM | ||
|---|---|---|---|---|---|---|---|---|
| G | Age | G * Age | ||||||
| Albumen pH | 9.41 | 9.35 | 9.36 | 9.36 | NS | *** | NS | 0.019 |
| Albumen DM,% | 13.58 a | 13.13 c | 13.34 b | 13.08 c | *** | *** | * | 0.042 |
| Albumen, % (w/w) | 63.4 c | 65.7 a | 65.3 a,b | 65.0 b | *** | *** | NS | 0.199 |
a–c values of same parameter with different letter superscript are significantly different at * (p < 0.05) or *** (p < 0.001). NS = non-significant. SEM = standard error of mean. DM = dry matter.