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Table 3 Effect of vulva score categories (VSC) on reproductive traits across datasets

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

Trait1,2

Farm

VSC3

P-value4

S

M

L

Farm

VSC

FarmĂ—VSC

S vs. M + L

S + M vs. L

AFS

1

220.67 (3.14)

224.52 (0.61)

224.9 (1.08)

< 0.01

0.89

0.72

0.24

0.73

2

224.5 (4.15)

226.19 (0.62)

225.55 (1.08)

3

235.59 (0.62)

235.55 (0.36)

235.78 (0.71)

TNB

1

10.34 (0.65)

11.63 (0.15)

11.51 (0.23)

< 0.01

0.08

0.06

< 0.01

0.56

2

13.13a (0.85)

11.34b (0.15)

11.52b (0.23)

3

11.69b (0.14)

11.99a (0.10)

12.12a (0.16)

NBA

1

9.7b (0.63)

10.21a (0.13)

10.26a (0.22)

< 0.01

0.03

0.33

0.04

0.69

2

11.8 (0.83)

10.43 (0.13)

10.56 (0.22)

3

10.89b (0.13)

11.28a (0.08)

11.46a (0.15)

TND

1

0.35b (0.05)

0.86 a (0.01)

0.78a (0.02)

< 0.01

0.90

0.05

0.01

0.50

2

0.82a (0.07)

0.55b (0.01)

0.62a (0.02)

3

0.48 (0.01)

0.45 (0.01)

0.45 (0.01)

NSB

1

0.17b (0.04)

0.45a (0.01)

0.35a (0.02)

< 0.01

0.99

0.11

0.05

0.31

2

0.55a (0.06)

0.29b (0.01)

0.35b (0.02)

3

0.35 (0.01)

0.32 (0.01)

0.32 (0.01)

MUM

1

0.15b (0.04)

0.41a (0.01)

0.41a (0.01)

< 0.01

0.24

0.20

0.04

0.33

2

0.26 (0.05)

0.26 (0.01)

0.23 (0.01)

3

0.15 (0.01)

0.15 (0.01)

0.10 (0.01)

NS

1

1.00AB (0.07)

1.04A (0.01)

1.07B (0.02)

< 0.01

0.08

0.58

0.55

0.21

2

1.08AB (0.09)

1.05A (0.01)

1.04B (0.02)

3

1.10AB (0.01)

1.11A (0.01)

1.14B (0.02)

SFS

1

1.01A (0.06)

0.96AB (0.01)

0.93B (0.02)

< 0.01

0.05

0.60

0.59

0.23

2

0.92A (0.08)

0.95AB (0.01)

0.96B (0.02)

3

0.92A (0.01)

0.91AB (0.01)

0.87B (0.01)

  1. 1AFS: 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
  2. 2Means after back log-transformation are show for TND, NSB, MUM
  3. 3Vulva score categories: small (S), medium (M), and large (L)
  4. 4Pre-defined contrasts. S vs. M + L tested the difference between VSC-S against the average of VSC-M with VSC-L, whereas S + M vs. L tested the difference between the average of VSC-S with VSC-M against VSC-L
  5. a-bMeans lacking the same superscript within a row are significantly different at P < 0.05 based on Farm×VSC or pre-defined contrast
  6. A-BMeans lacking the same superscript within a trait are significantly different at P < 0.05 based on the main effect of VSC