. 2017 Jul;95(7):2838–2847. doi: 10.2527/jas.2017.1524

Table 4.

The P-values and least squares means (SE) for the effect of WUR10000125 (WUR) on deregressed EBV by genotype and line (or across lines) for finishing traits

		Least squares mean
Trait	Line¹	AA	AB	BB	P-value	Additive effect²	Additive P-value	Dominance effect³	Dominance P-value
BFE⁴	D1	0.10^a (0.15)	0.15^a (0.16)	0.09^a (0.18)	0.38	−0.003 (0.05)	0.95	0.05 (0.05)	0.28
D2	0.55^a (0.18)	0.63^a (0.18)	0.58^a (0.21)	0.15	0.01 (0.06)	0.83	0.06 (0.06)	0.31
S1	0.39^a (0.13)	0.36^a (0.13)	0.33^a (0.15)	0.62	−0.03 (0.04)	0.45	−0.002 (0.05)	0.96
S2	−0.11^a (0.09)	−0.13^a (0.10)	−0.15^a (0.11)	0.62	−0.02 (0.03)	0.55	−0.007 (0.04)	0.85
Across lines	0.24^a (0.08)	0.25^a (0.08)	0.21^a (0.09)	0.36	−0.01 (0.02)	0.62	0.03 (0.03)	0.21
DFI⁵	D1	19.93^a (13.43)	30.76^a (13.82)	25.49^a (19.97)	0.24	2.78 (8.02)	0.72	8.05 (8.93)	0.37
D2	31.91^a (17.50)	27.45^a (18.34)	34.18^a (28.10)	0.80	1.13 (11.20)	0.92	−5.60 (12.01)	0.64
S1	22.94^a (18.33)	2.50^b (18.73)	−20.44^b (23.24)	0.004	−21.69 (7.94)	0.01	1.25 (8.95)	0.88
S2	15.57^b (22.46)	40.79^a (23.32)	65.01^a (27.82)	<0.001	24.72 (8.43)	0.004	0.50 (8.99)	0.95
Across lines	22.23^a (8.96)	23.88^a (9.28)	22.50^a (12.26)	0.90	0.14 (4.43)	0.97	1.52 (4.86)	0.75
TGR⁶	D1	7.40^a (4.59)	10.22^a (4.67)	8.15^a (6.11)	0.28	0.37 (2.21)	0.86	2.45 (2.41)	0.31
D2, NonVx⁷	11.17^a (6.72)	16.42^a (7.07)	15.32^a (9.93)	0.19	2.08 (3.76)	0.58	3.17 (4.10)	0.44
D2, Vx⁸	−0.51^a (5.35)	−4.59^a (5.76)	−7.61^a (11.93)	0.30	−3.55 (5.41)	0.51	−0.54 (5.64)	0.92
S1	−3.49^a (6.11)	−9.66^b (6.24)	−19.16^b (7.66)	0.002	−7.84 (2.56)	0.002	1.67 (2.87)	0.56
S2	−6.83^b (7.64)	−1.81^a (7.91)	0.17^ab (9.34)	0.09	3.50 (2.75)	0.21	1.52 (2.91)	0.60
Across lines⁹	−0.91^a (2.85)	−0.24^a (2.94)	−2.35^a (3.81)	0.44	−0.72 (1.33)	0.49	1.39 (1.45)	0.21
LGR¹⁰	D1	7.00^a (2.74)	8.38^a (2.80)	5.91^a (3.74)	0.36	−0.55 (1.39)	0.69	1.92 (1.52)	0.21
D2	3.21^a (3.24)	2.24^a (3.38)	2.00^a (4.99)	0.74	−0.60 (1.93)	0.75	−0.36 (2.07)	0.86
S1	−0.27^a (3.94)	−4.69^b (4.02)	−10.89^b (4.96)	0.001	−5.31 (1.67)	0.002	0.89 (1.88)	0.63
S2	−3.87^a (4.83)	−1.46^a (5.00)	−1.07^a (5.89)	0.26	1.40 (1.73)	0.42	1.02 (1.83)	0.58
Across lines¹¹	1.66^a (1.79)	1.35^a (1.85)	−0.57^a (2.41)	0.33	−1.12 (0.85)	0.14	0.81 (0.93)	0.27

^a,bEstimates within a row with different superscripts differ (P < 0.05).

¹D1 = Landrace dam line; D2 = Large White dam line; S1 = synthetic sire line; S2 = Pietrain sire line.

²Additive effect of WUR.

³Dominance effect of WUR.

⁴BFE = backfat: recorded as fat depth at the end of the test period (approximately 120 kg) in millimeters.

⁵DFI = daily feed intake: recorded in grams per day from start to end of the test period.

⁶TGR = test daily gain: expressed in grams of weight gain per day from start to end of the test period. There was suggestive evidence (P = 0.07) of a significant effect of WUR × porcine reproductive and respiratory syndrome (PRRS) vaccination status (PRRS_Vacc). P-values for the effect of PRRS_Vacc × contrasts fitted to obtain the additive effect of WUR (WUR_add) and PRRS_Vacc × contrasts fitted to obtain the dominance effect of WUR (WUR_dom) were P = 0.85 and P = 0.17, respectively.

⁷NonVx = nonvaccinated: pigs were not vaccinated for PRRS.

⁸Vx = vaccinated: pigs were vaccinated for PRRS.

⁹A significant effect of WUR × line (P = 0.004) was detected. P-values for the effect of WUR_add × line and WUR_dom × line were P = 0.01 and P = 0.96, respectively.

¹⁰LGR = lifetime daily gain: expressed in grams of weight gain per day from birth until end of the test period.

¹¹A significant effect of WUR × line (P = 0.004) was detected. P-values for the effect of WUR_add × line and WUR_dom × line were P = 0.02 and P = 0.85, respectively.