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Table 5 Mean (highest posterior density interval at 95 %) of the marginal distribution of genetic parameter estimated with the pedigree-based model

From: Pedigree and genomic evaluation of pigs using a terminal-cross model

Trait

Parameter

h 2 A

t 2 AC

t 2 BC

rg A, AC

p 2 A

p 2 C

σ 2 A

σ 2 C

Growth rate

0.33

[0.08, 0.57]

0.24

[0.11, 0.40]

0.29

[0.12, 0.44]

0.79

[0.37, 1.00]

0.13

[0.04, 0.22]

0.09

[0.03, 0.15]

9239

[7968.70, 1, 0550.00]

8032

[7001.20, 9153.20]

Feed conversion ratio

0.37

[0.21, 0.56]

0.29

[0.14, 0.45]

0.18

[0.06, 0.32]

0.89

[0.66, 1.00]

0.10

[0.03, 0.18]

0.09

[0.03, 0.16]

0.02

[0.02, 0.03]

0.02

[0.02, 0.02]

Lean meat

0.46

[0.24, 0.67]

0.28

[0.13, 0.45]

0.29

[0.13, 0.46]

0.74

[0.34, 1.00]

0.04

[0.001, 0.09]

0.06

[0.01, 0.12]

2.51

[2.20, 2.82]

3.13

[2.75, 3.56]

pH longissimus dorsi

0.46

[0.22, 0.76]

0.27

[0.13, 0.39]

0.11

[0.02, 0.22]

0.91

[0.57, 1.00]

–

–

0.02

[0.01, 0.02]

0.02

[0.02, 0.03]

Drip loss

0.70

[0.52, 0.89]

0.22

[0.09, 0.38]

0.15

[0.03, 0.28]

0.87

[0.58, 1.00]

–

–

6.30

[5.52, 7.20]

3.39

[2.98, 3.85]

Intramuscular fat

0.40

[0.18, 0.62]

0.34

[0.17, 0.52]

0.25

[0.09, 0.40]

0.86

[0.56, 1.00]

–

–

0.05

[0.05, 0.06]

0.07

[0.06, 0.08]

  1. h 2 A  = purebred heritability
  2. t 2 iC  = ratio of variance of the parental allelic contribution in the crossbreds (i = A, B for Piétrain and Large White line, respectively) computed as 2σ 2 iC /σ 2 C where σ 2 iC is the additive genetic variance of the corresponding parental alleles in the crossbreds
  3. rg A, AC  = genetic correlation between purebred individual and sire line contribution in the crossbreds
  4. p 2 j  = ratio of variance of common pen effect
  5. σ 2 j  = phenotypic variances (j = A, C for purebred Piétrain and crossbred, respectively)
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Genetics Selection Evolution

ISSN: 1297-9686