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

Table 5 Estimates of phenotypic (r_P) and genetic (r_G) correlations between vulva score categories^a and reproductive traits^b for each dataset and across datasets

Trait	Farm1 + 2 + 3		Farm1		Farm2		Farm3
Trait	r_P	r_G	r_P	r_G	r_P	r_G	r_P	r_G
AFS	0.05 (0.02)	0.25 (0.06)	0.04 (0.05)	0.17 (0.32)	−0.03 (0.04)	−0.51 (0.44)	0.01 (0.02)	−0.32 (0.16)
TNB	0.04 (0.02)	0.28 (0.19)	0.02 (0.04)	0.61 (0.47)	< 0.01 (0.04)	0.26 (0.56)	0.04 (0.02)	0.39 (0.26)
NBA	0.05 (0.02)	0.26 (0.17)	0.03 (0.04)	0.30 (0.37)	NC	NC	0.06 (0.02)	0.31 (0.21)
TND	−0.01 (0.02)	0.12 (0.20)	0.01 (0.04)	0.26 (0.51)	0.03 (0.04)	0.28 (0.41)	− 0.03 (0.02)	0.14 (0.39)
NSB	−0.01 (0.02)	0.01 (0.14)	−0.01 (0.04)	0.10 (0.55)	0.04 (0.04)	0.38 (0.35)	−0.01 (0.02)	0.13 (0.28)
MUM	−0.02 (0.02)	0.27 (0.79)	0.03 (0.04)	0.69 (0.47)	−0.03 (0.04)	−0.42 (0.58)	− 0.03 (0.02)	−0.15 (0.14)
NS	0.02 (0.02)	0.18 (0.13)	NC	NC	−0.02 (0.04)	−0.31 (0.59)	0.04 (0.02)	0.69 (0.38)
SFS	−0.06 (0.02)	−0.30 (0.13)	− 0.07 (0.04)	−0.36 (0.95)	0.03 (0.04)	0.33 (0.58)	−0.05 (0.02)	−0.71 (0.38)

^aVulva score categories as continuous variable (VSC_q)
^bAFS 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
NC Not converged. Convergence was achieved when the REML log-likelihood and variance estimates change less than 0.002% and 1%, respectively, between consecutive iterations

ISSN: 2049-1891