Table 2 Estimates of heritability for body weight (BW), ultrasound area of breast meat (BM) and hen-house egg production (HHP) obtained by placing varying weights (λ) on the pedigree-based relationship matrix (A) and on Forni’s (G F ) or VanRaden’s (G V ) relationship matrix
From: A predictive assessment of genetic correlations between traits in chickens using markers
Regularization parameter (λ) | G F | G V | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Unscaled | Scaled | Unscaled | Scaled | |||||||||
\(h_{BW}^{2}\) | \(h_{BM}^{2}\) | \(h_{HHP}^{2}\) | \(h_{BW}^{2}\) | \(h_{BM}^{2}\) | \(h_{HHP}^{2}\) | \(h_{BW}^{2}\) | \(h_{BM}^{2}\) | \(h_{HHP}^{2}\) | \(h_{BW}^{2}\) | \(h_{BM}^{2}\) | \(h_{HHP}^{2}\) | |
A (λ = 0) | 0.187 | 0.244 | 0.315 | 0.187 | 0.244 | 0.315 | 0.187 | 0.244 | 0.315 | 0.187 | 0.244 | 0.315 |
λ = 0.20 | 0.226 | 0.291 | 0.309 | 0.234 | 0.297 | 0.340 | 0.223 | 0.291 | 0.299 | 0.230 | 0.295 | 0.311 |
λ = 0.40 | 0.232 | 0.303 | 0.285 | 0.278 | 0.348 | 0.360 | 0.227 | 0.299 | 0.270 | 0.247 | 0.318 | 0.295 |
λ = 0.60 | 0.219 | 0.297 | 0.258 | 0.315 | 0.395 | 0.374 | 0.213 | 0.290 | 0.239 | 0.245 | 0.323 | 0.272 |
λ = 0.80 | 0.197 | 0.281 | 0.230 | 0.335 | 0.431 | 0.377 | 0.189 | 0.272 | 0.209 | 0.227 | 0.316 | 0.245 |
G (λ = 1) | 0.165 | 0.255 | 0.196 | 0.313 | 0.442 | 0.361 | 0.156 | 0.243 | 0.174 | 0.193 | 0.293 | 0.214 |