Table 3.
Variance components estimates for the intercept and slope terms of the additive genetic effect.
| Trait | Pop. | Covariate | Variance components estimates | |||||
|---|---|---|---|---|---|---|---|---|
| Variable and time of recording | Intercept | Min | Max | σ01 | ||||
| TNB | SPG_LR | Average Rel. Humidity 14 to 7 days before conception | 52.50 | 11.74 | 93.24 | 8.93 (7.51;10.26) | 0.61 (−0.36;1.76) | 6.57 (5.21;8.26) |
| SPG_LW | Average Rel. Humidity 7 days to conception | 52.50 | 11.74 | 93.24 | 9.99 (8.60;11.40) | 0.22 (−0.59;0.96) | 3.68 (2.76;4.61) | |
| TML_LR | Maximum Temp. 28 to 35 days int pregnancy | 15.07 | −8.54 | 38.68 | 13.70 (11.90;15.66) | −2.46 (−3.57;−1.38) | 4.69 (3.49;5.87) | |
| TML_YS | Maximum Temperature 14 to 21 days into pregnancy | 16.81 | -6.46 | 40.14 | 10.34 (8.49;12.18) | −2.01 (−3.03;−1.01) | 3.71 (2.83;4.57) | |
| NBA | SPG_LR | Average Rel. Humidity 14 to 7 days before conception | 52.50 | 11.74 | 93.24 | 9.35 (7.97;10.74) | 0.72 (−0.20;1.72) | 4.93 (3.86;6.20) |
| SPG_LW | Average Rel. Humidity 100 to 107 days into pregnancy | 51.78 | 11.74 | 91.82 | 10.73 (9.38;12.23) | −0.81 (−1.70;0.04) | 4.04 (3.13;5.03) | |
| TML_LR | Average THI 86 to 93 days into pregnancy | 46.43 | 12.18 | 80.7 | 14.63 (12.58;16.65) | -2.99 (−4.35;−1.58) | 7.44 (5.80;9.23) | |
| TML_YS | Minimum Temp. 72 to 79 days into pregnancy | 2.22 | −18.47 | 22.92 | 10.62 (8.78;12.48) | −2.70 (−3.91;−1.41) | 6.33 (4.91;7.79) | |
| ABW | SPG_LR | Max Temp. 21 to 14 days before conception | 19.58 | −0.69 | 39.86 | 26.09 (23.71;28.51) | −0.46 (−1.65;0.70) | 3.46 (2.73;4.24) |
| SPG_LW | Average Rel. Humidity 7 days to conception | 52.50 | 11.74 | 93.24 | 23.11 (21.09;25.29) | 0.01 (−1.40;1.30) | 4.80 (3.71;5.92) | |
| TML_LR | Average Rel. Humidity 14 to 21 days into pregnancy | 59.09 | 27.65 | 90.55 | 30.90 (28.05;33.98) | −3.25 (−5.17;−1.31) | 8.25 (6.32;10.22) | |
| TML_YS | Average Rel. Humidity 107 to 114 days into pregnancy | 59.09 | 27.65 | 90.55 | 28.60 (24.98;32.32) | −2.33 (−4.76;−0.18) | 9.40 (7.01;11.78) | |
Results are reported for each trait by population combination, with one case representing the largest estimate of the slope term variance. Cases highlighted in bold show the strongest estimate of the slope term variance, per trait.
Pop., indicates the breeding company and breed, in which SPG, Smithfield Premium Genetics; TML, The Maschhoffs; LR, Landrace; LW, Large White; and YS, Yorkshire (also known as Large White in other breeding companies). Covariate: indicates the environmental covariate selected for the population-trait combination, mean and SD are reported. Intercept, indicates the value that was set to 0 (intercept) in the random regression model.