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Table 4 Estimates (standard errors in parentheses) of residual (\( {\sigma}_e^2 \)) and additive genetic (\( {\sigma}_a^2 \)) variances, and heritability (h2)

From: Phenotypic and genomic relationships between vulva score categories and reproductive performance in first-parity sows

 

Farm1 + 2 + 3

Farm1

Farm2

Farm3

Traita

\( {\boldsymbol{\sigma}}_{\boldsymbol{e}}^{\boldsymbol{2}} \)

\( {\boldsymbol{\sigma}}_{\boldsymbol{a}}^{\boldsymbol{2}} \)

h2

\( {\boldsymbol{\sigma}}_{\boldsymbol{e}}^{\boldsymbol{2}} \)

\( {\boldsymbol{\sigma}}_{\boldsymbol{a}}^{\boldsymbol{2}} \)

h2

\( {\boldsymbol{\sigma}}_{\boldsymbol{e}}^{\boldsymbol{2}} \)

\( {\boldsymbol{\sigma}}_{\boldsymbol{a}}^{\boldsymbol{2}} \)

h2

\( {\boldsymbol{\sigma}}_{\boldsymbol{e}}^{\boldsymbol{2}} \)

\( {\boldsymbol{\sigma}}_{\boldsymbol{a}}^{\boldsymbol{2}} \)

h2

VSCc

1.00

0.66

0.40 (0.02)

1.00

0.15

0.13 (0.07)

1.00

0.07

0.07 (0.07)

1.00

0.25

0.20 (0.03)

VSCq

0.06

0.30

0.83 (0.02)

0.19

0.05

0.20 (0.10)

0.19

0.02

0.09 (0.09)

0.25

0.13

0.34 (0.05)

AFS

192.14

16.39

0.08 (0.03)

116.69

69.20

0.37 (0.12)

128.53

46.40

0.27 (0.11)

201.00

32.09

0.14 (0.04)

TNB

8.29

0.17

0.02 (0.02)

6.27

0.25

0.03 (0.05)

7.27

0.81

0.10 (0.09)

8.63

0.58

0.06 (0.04)

NBA

8.18

0.03

< 0.01 (0.02)

6.10

0.99

0.13 (0.08)

8.47

0.27

0.03 (0.07)

7.55

0.85

0.10 (0.05)

TND

0.06

< 0.01

0.03 (0.02)

0.07

< 0.01

0.06 (0.06)

0.04

0.02

0.28 (0.10)

0.05

< 0.01

0.02 (0.03)

NSB

0.04

< 0.01

0.07 (0.03)

0.04

< 0.01

0.05 (0.05)

0.03

0.01

0.27 (0.09)

0.04

< 0.01

0.04 (0.03)

MUM

0.03

< 0.01

< 0.01 (< 0.01)

0.04

< 0.01

0.05 (0.06)

0.03

< 0.01

0.08 (0.08)

0.02

< 0.01

0.08 (0.06)

NS

0.09

< 0.01

0.02 (0.02)

0.05

< 0.01

< 0.01 (0.01)

0.05

< 0.01

0.08 (0.06)

0.11

< 0.01

0.03 (0.03)

SFS

1.00

0.06

0.06 (0.04)

1.00

< 0.01

< 0.01 (0.01)

1.00

0.20

0.17 (0.11)

1.00

< 0.01

0.03 (0.05)

  1. aVSCc: Vulva score as categorical variable, VSCq: Vulva score as continuous variable, AFS: Age at first service, TNB: Total number born, NBA: Number born alive, TND: Total number dead, NSB: Number stillborn, MUM: Number of mummies, NS: Number of services until first farrow, SFS: Unique service with successful first farrow