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Table 3 Estimates of variance components, heritabilities (s.e.), correlations (s.e.) and AIC obtained with the different models

From: Heterogeneity of variance components for preweaning growth in Romane sheep due to the number of lambs reared

  Mod(Coef) Mod(1) Mod(2) Mod(3) Mod(4) Mod(5) Mod(6) Mod(7)
σ e 1 2
σ e 2 2
1581.87 1688.97 1633.56 2260.68
1556.34
2085.98
1556.18
2086.10
1556.70
2073.32
1563.27
2033.06
1566.96
σ d 1 2
σ d 2 2
390.34 416.33 403.72 384.93 385.85 385.04 415.35
422.07
473.15
366.79
σ m 1 2
σ m 2 2
347.11 284.58 180.16 181.83 179.71 228.20
198.44
179.52 265.40
168.52
σ p 1 2
σ p 2 2
219.50 225.86 719.60
211.30
232.50 454.17
212.17
419.12
219.31
441.14
215.56
416.21
218.47
σ l 2 2 355.99 202.93 275.24 315.35 323.78 323.97 324.74 325.07
h d 1 2 0.13 (0.01) 0.16
(0.02)
0.14
(0.01)
0.13
(0.01)
0.12
(0.01)
0.12
(0.01)
0.13
(0.03)
0.15
(0.03)
h m 1 2 0.12 (0.02) 0.11
(0.01)
0.06
(0.01)
0.06
(0.01)
0.06
(0.01)
0.07
(0.02)
0.06
(0.01)
0.08
(0.02)
h d 2 2 0.14 (0.01) 0.15
(0.02)
0.15
(0.02)
0.14
(0.02)
0.14
(0.02)
0.14
(0.02)
0.14
(0.02)
0.14
(0.02)
h m 2 2 0.06
(<0.01)
0.10
(0.01)
0.06
(0.01)
0.07
(0.01)
0.07
(0.01)
0.06
(0.01)
0.07
(0.01)
0.06
(0.01)
ρ d 1 d 2        1.00
(0.06)
1.00
(0.09)
ρ m 1 m 2         0.89
(0.14)
ρ d 1 m 1 0.08 (0.09) 0.11
(0.09)
0.05
(0.09)
0.07
(0.10)
0.07
(0.10)
0.07
(0.13)
0.13
(0.14)
-0.10
(0.19)
ρ d 2 m 2         0.10
(0.11)
ρ d 1 m 2       0.09
(0.11)
  0.13
(0.16)
ρ d 2 m 1        0.06
(0.10)
0.00
(0.14)
ρ p 1 p 2    0.60
(0.06)
  0.76
(0.09)
0.73
(0.11)
0.73
(0.09)
0.74
(0.11)
AIC 322 486 354 300 288 294 292 298
  1. For litter size i, σ e i 2 is residual variance; σ d i 2 direct genetic variance; σ m i 2 maternal genetic variance; σ p i 2 maternal permanent variance; σ l i 2 litter variance; h d i 2 heritability for direct effect; h m i 2 heritability for maternal effect; ρ d i m j correlation between direct (i) and maternal (j) effects; ρ d 1 d 2 correlation between direct genetic effects; ρ m 1 m 2 correlation between maternal genetic effects; ρ p 1 p 2 correlation between maternal permanent effects. Figures across two lines indicate that the two components are equal.