Table 2. The top three estimated traits that can predict measured traits according to the stepwise regression analysis

Step	Traits (Y =)	Abattoir	Sex	Season	Backfat thickness (X11))	Loin weight (X21))	Total bone weight (X31))	Shoulder weight (X12))	Loin weight (X22))	Front weight (X32))	Intercept	Standard error	R2
1	Backfat thickness	−0.034	0.250	0.289	0.911	–	–	–	–	–	0.923	0.014	0.833
2		0.028	0.283	0.218	0.859	0.408	–	–	–	–	−1.953	0.022	0.837
3		0.033	0.276	0.223	0.781	0.829	−0.970	–	–	–	1.298	0.033	0.840
1	Carcass weight	−0.111	−0.025	−0.350	–	–	–	6.447	–	–	14.185	0.027	0.899
2		0.105	−0.236	0.102	–	–	–	4.166	3.029	–	10.181	0.016	0.967
3		−0.088	−0.156	0.090	–	–	–	2.419	2.759	1.003	6.185	0.013	0.980

Partial regression coefficients for backfat thisckness.
Partial regression coefficients for carcass weight.