TABLE 1.

The phenotypic description of parental inbred lines and the experimental intercross population

	Experimental population			Parental lines
Trait	Mean ± SE	VA	IA (%)	Mean ± SE LG/J	Mean ± SE SM/J
Femur length	15.75 ± 0.012 mm	0.445 mm2	0.179	17.60 ± 0.068 mm	14.78 ± 0.049 mm
Humerus length	12.36 ± 0.008 mm	0.214 mm2	0.140	13.76 ± 0.017 mm	11.60 ± 0.012 mm
Tibia length	17.36 ± 0.012 mm	0.411 mm2	0.137	18.87 ± 0.056 mm	16.64 ± 0.063 mm
Ulna length	14.14 ± 0.009 mm	0.225 mm2	0.113	15.41 ± 0.001 mm	13.20 ± 0.035 mm
Tail length	92.43 ± 0.121 mm	32.645 mm2	0.382	97.08 ± 0.506 mm	73.28 ± 0.435 mm
Body weight	35.042 ± 0.112 g	40.338 g2	3.242	47.925 ± 3.039 g	29.35 ± 0.521 g
Heart weight	0.170 ± 0.001 g	0.0004 g2	1.376	0.190 ± 0.035 g	0.170 ± 0.014 g
Kidney weight	0.300 ± 0.001 g	0.0023 g2	2.580	0.341 ± 0.084 g	0.292 ± 0.048 g
Spleen weight	0.106 ± 0.001 g	0.0004 g2	4.048	0.147 ± 0.026 g	0.105 ± 0.006 g
Liver weight	2.106 ± 0.008 g	0.1163 g2	2.604	2.614 ± 0.420 g	1.527 ± 0.006 g

Phenotypic description of the experimental population and both parental lines. The values are reported on the untransformed scale (unstandardized and on original scale of measurements). The scores of experimental population have been previously corrected by multiple regression for sex, litter size, and age at necropsy (see text). V_A, the additive variance for the experimental population; I_A, the mean-scaled additive variance.