Table 5.

Relationship coefficients (± s.e.) of number born alive (NBA) on sex ratio, within-litter birth weight coefficient of variation (CVBWT), mean birth weight (MBWT), total litter weight at birth (BWT), total litter weight at weaning (WWT), within-litter weaning weight coefficient of variation (CVWWT), Mean weaning weight (MWWT), within-litter minimum birth weight (MinBWT), within-litter maximum birth weight (MaxBWT), within-litter minimum weaning weight (MinWWT), within-litter maximum weaning weight (MaxWWT) and percent survival at weaning (N = 310).

Parameter	Regression coefficient		Significance
	Linear	Quadratic
Sex ratio	0.002 ± 0.0086	0.001 ± 0.0004	NS
CVBWT	–	0.042 ± 0.0051	**
MBWT	−0.023 ± 0.0048	–	**
BWT	1.213 ± 0.0588	0.055 ± 0.0029	**
MinBWT	−0.034 ± 0.0064	−0.002 ± 0.0003	**
MaxBWT	0.001 ± 0.0062	−0.003 ± 0.0003	NS
CVW	0.892 ± 0.1427	0.041 ± 0.0068	**
MWWT	−0.131 ± 0.0325	−0.006 ± 0.0016	**
WWT	4.612 ± 0.4095	0.206 ± 0.0200	**
SVW	−0.884 ± 0.2582	–	**
MinWWT	−0.288 ± 0.0337	−0.013 ± 0.0016	**
MaxWWT	0.006 ± 0.0424	0.001 ± 0.0020	NS