Table 3.

Additive effect of PLAG1 genotype¹ on binary² female fertility traits

Trait	n	% Success	Log-odds estimate	SE	%Dev 3	Odds ratio	95% CI	Prob	95% CI
Heifer pregnancy	1388	0.71	0.53***	0.11	1.53	1.70	1.38–2.10	0.63	0.58–0.68
Heifer calving	933	0.66	0.47**	0.13	1.16	1.61	1.25–2.07	0.62	0.56–0.67
Heifer rebreed	596	0.66	0.11	0.14	—	—	—	—	—
Stayability:
Four years	734	0.46	0.39*	0.13	0.95	1.48	1.15–1.90	0.60	0.54–0.66
Five years	379	0.38	0.32	0.19	—	—	—	—	—
Six years	259	0.59	−0.22	0.23	—	—	—	—	—

*P < 0.01; **P < 0.001; ***P < 1 × 10⁻⁶.

PLAG1 rs109815800 genotypes: 0 = homozygous reference allele (GG), 1 = heterozygous (GT), and 2 = homozygous alternative allele (TT).

All binary traits; 1 = success, 0 = failure.

%Dev = percent model deviance explained by PLAG1 genotype.