Table 2.

Number of phenotype records by trait and line for the training and testing datasets

Trait	Set	A	B	C	D	E	F	G
ADG	Training	77,811	54,709	48,219	45,693	31,918	24,046	13,479
	Testing	9435	8387	6977	4789	3019	1808	1572
BFT	Training	70,529	52,910	47,512	42,636	31,127	21,892	13,300
	Testing	8560	7957	6747	4301	2936	1602	1568
LD	Training	75,117	54,537	48,054	43,517	31,987	24,154	13,303
	Testing	9021	8415	6995	4411	3024	1807	1570
ADFI	Training	20,535	8866	8235	11,573	11,930	4000	4457
	Testing	1358	638	802	641	478	97*	364
FCR	Training	19,805	8572	7857	11,378	11,804	3900	4364
	Testing	1328	624	775	624	477	97*	360
TNB	Training	12,250	9315	8438	7700	5834	–	2865
	Testing	254	428	400	23*	125*	–	98*
LWW	Training	–	7884	6251	–	–	–	2505
	Testing	–	246	220	–	–	–	47*
RET	Training	–	5928	5496	–	–	–	1481
	Testing	–	332	282	–	–	–	70*

ADG average daily gain, BFT backfat thickness, LD loin depth, ADFI average daily feed intake, FCR feed conversion ratio, TNB total number of piglets born, LWW litter weight at weaning, RET return to oestrus 7 days after weaning

^*Included in multi-line scenarios, but excluded in within-line scenarios because of the limited size of the testing set