Table 1.
Body weight (g), comb area (cm2), shank length (cm), and immune response traits (SRBC) in the F0 L2 and R- lines and their F2 male progeny from hatch to 16 weeks of age
| Male | L2 | R- | p value | F2 | |||
|---|---|---|---|---|---|---|---|
| Trait | Mean | SD | Mean | SD | Mean | SD | |
| BW00 | 27.5 | 2.1 | 36.3 | 1.5 | <0.0001 | 32.2 | 2.3 |
| BW04 | 354.8 | 46.4 | 238.7 | 26.4 | <0.0001 | 290.7 | 51.3 |
| BW08 | 1052.5 | 113.2 | 759.7 | 75.3 | <0.0001 | 937.0 | 131.3 |
| BW12 | 1758.4 | 240.3 | 1309.4 | 106.0 | <0.0001 | 1511.6 | 262.4 |
| BW16 | 2112.4 | 196.1 | 1808.1 | 128.4 | 0.0008 | 2220.4 | 324.7 |
| CA16 | 56.6 | 12.1 | 16.0 | 2.4 | <0.0001 | 31.8 | 13.1 |
| SL08 | – | – | – | – | – | 7.0 | 0.5 |
| SRBC00 | – | – | – | – | – | 0.3 | 0.8 |
| SRBC07 | 5.2 | 2.1 | 4.9 | 1.6 | 0.79 | 2.6 | 1.8 |
| SRBC14 | 4.1 | 1.8 | 3.3 | 1.2 | 0.97 | 2.7 | 1.7 |
BW00, 04, 08, 12, 16: body weight at hatch, at 4, 8, 12, and 16 weeks of age; CA16: size of comb area at 16 weeks of age; SRBC00, 07, 14: baseline antibody level, antibody level at 7 and 14 days after primary immunization of sheep red blood cell; SD: standard deviation; the p value corresponds to the significance level of the comparison between L2 and R- lines, for each trait