Table 1.

Summary of the effect of birth parameters on phenotypic traits

	Estimate	SE	t‐Value	p‐Value
Grip strength
Birth weight (g)	0.055	0.041	1.324	.186
Growth rate (g/day)	0.088	0.049	1.800	.072
Litter size	0.000	0.013	0.018	.986
Age (days)	0.733	0.191	3.828	<.001
Age2	−0.056	0.014	−3.919	<.001
Sex—Males	−0.009	0.018	−0.488	.626
Body weight (g)	0.287	0.050	5.726	<.001
Bite force
Birth weight (g)	0.105	0.052	2.013	.044
Growth rate (g/day)	−0.032	0.061	−0.531	.595
Litter size	0.017	0.016	1.049	.294
Age (days)	0.654	0.243	2.691	.007
Age2	−0.047	0.018	−2.628	.009
Sex—Males	−0.044	0.020	−2.149	.032
Body weight (g)	0.445	0.051	8.657	<.001
Emergence latency
Birth weight (g)	0.669	0.321	2.081	.037
Growth rate (g/day)	−0.709	0.379	−1.872	.061
Litter size	−0.092	0.099	−0.928	.354
Age (days)	−0.383	0.083	−4.600	<.001
Sex—Males	−0.148	0.137	−1.086	.277
Body weight (g)	0.440	0.311	1.413	.158
Agitation score
Birth weight (g)	0.123	0.164	0.749	.454
Growth rate (g/day)	−0.111	0.186	−0.600	.549
Litter size	0.024	0.049	0.495	.620
Age (days)	−0.218	0.042	−5.173	<.001
Sex–Males	−0.174	0.066	−2.618	.009
Body weight (g)	−0.095	0.154	−0.619	.536
Morphology
Birth weight (g)	1.293	0.336	3.842	<.001
Growth rate (g/day)	3.319	0.377	8.793	<.001
Litter size	−0.015	0.104	−0.142	.887
Age (days)	0.860	0.088	9.826	<.001
Sex–Males	−0.158	0.128	−1.236	.216

Bolded values represent statistically significant effects.