Table 1:

QTLs: mapping and contribution to heritability

Phenotype	No.	Mean ± SD	Significant thresholda	QTL No.	Variance explained (%)b	Gene No.c
Total teat number (TTN)	2,797	10.73 ± 1.07	4.55	6	8.86	52
Left teat number (LTN)	2,797	5.35 ± 0.66	4.81	2	3.16	14
Right teat number (RTN)	2,797	5.38 ± 0.64	4.79	5	6.03	56
Back fat thickness at 100 kg (BF, mm)	2,796	10.99 ± 2.66	4.67	4	2.40	55
Loin muscle depth at 100 kg (LMD, mm)	2,796	46.15 ± 3.93	5.36	2	1.27	15
Loin muscle area at 100 kg (LMA, mm2)	2,795	36.25 ± 3.60		0	0	0
Lean meat percentage at 100 kg (LMP, %)	2,795	54.02 ± 1.58	5.50	1	1.19	48
Time spent eating per day (TPD, min)	2,602	63.02 ± 9.85	6.10	1	1.08	28
Average daily feed intake (ADFI, kg)	2,602	2.00 ± 0.20		0	0	0
Number of visits to feeder per day (NVD)	2,602	7.30 ± 1.83		0	0	0
Time spent eating per visit (TPV, min)	2,602	10.06 ± 2.79		0	0	0
Feed intake rate (FR, g/min)	2,602	32.37 ± 5.19		0	0	0
Feed intake per visit (FPV, kg)	2,602	290.6 ± 75.87		0	0	0
Feed conversion rate (FCR)	2,691	2.19 ± 0.19		0	0	0
Average daily gain (0–30 kg) (ADG30, g)	2,795	354.8 ± 38.72		0	0	0
Age to 30 kg live weight (AGE30, day)	2,796	80.49 ± 8.57		0	0	0
Average daily gain (30–100 kg) (ADG100, g)	2,795	633.8 ± 37.12		0	0	0
Age to 100 kg live weight (AGE100, day)	2,796	155.5 ± 9.20		0	0	0
Body length (BL, cm)	1,844	117.60 ± 2.91		0	0	0
Body height (BH, cm)	1,844	62.19 ± 1.55		0	0	0
Circumference of cannon bone (CC, cm)	1,844	17.81 ± 0.54		0	0	0

^aLog₁₀(P) value when FDR < 0.05.

^bTotal phenotypic variance explained by QTLs.

^cTotal gene number included in QTLs.