TABLE 9.
Comparison of literature estimates of genetic variance in environmental variance
| Source | Trait | ![]() |
b
|
c
|
d
|
|---|---|---|---|---|---|
| SanCristobal-Gaudy et al. (1998) | Fat/protein goat milk | 0.000 | 0.000 | 0.000 | 0.000 |
| pH pig | 0.150 | 1.2E-04 | 0.039 | 0.402 | |
| SanCristobal-Gaudy et al. (2001) | Litter size sheep | 0.230 | 0.057 | 0.048 | 0.509 |
| Sorensen and Waagepetersen (2003)a | Litter size pigs | 0.090 | 4.291 | 0.026 | 0.307 |
| Ros et al. (2004)a | Body weight (g) snails | 0.290 | 0.368 | 0.017 | 0.580 |
| Rowe et al. (2006) | Body weight (kg) broiler ♂ | 0.086 | 8460 | 0.029 | 0.299 |
| Body weight (kg) broiler ♀ | 0.096 | 5310 | 0.031 | 0.318 |
Models included permanent environmental variance; environmental variance was taken from their model 1 estimates.
Equation 17:
.
= heritability of environmental variance.
, a measure of evolvability (Houle 1992).



