Table 5.
Mean, SD, and line effect of the ratio of proventriculus and gizzard weight to intestine weight from 7 to 50 d of age (N = 12 for each line).
| Trait | Age (d) | D+ mean (±SD) | D− mean (±SD) | D+/D− ratio (%) | Line effect |
|---|---|---|---|---|---|
| (Proventriculus + Gizzard)/Intestine weight (g.g−1) | 0 | ND | ND | ND | ND |
| 7 | 0.79 ± 0.09 | 0.70 ± 0.13 | 12.9 | 0.082 | |
| 14 | 0.66 ± 0.12 | 0.48 ± 0.093 | 37.5 | 0.00050 | |
| 23 | 0.52 ± 0.18 | 0.37 ± 0.068 | 40.7 | 0.00098 | |
| 35 | 0.51 ± 0.15 | 0.37 ± 0.065 | 37.8 | 0.016 | |
| 50 | 0.62 ± 0.19 | 0.46 ± 0.15 | 34.8 | 0.050 |
Abbreviation: ND, not determined.