Dominance and parent-of-origin effects of coding and non-coding alleles at the acylCoA-diacylglycerol-acyltransferase (DGAT1) gene on milk production traits in German Holstein cows

Table 4 Differences and their standard errors (S.E.) between paternally and maternally inherited DGAT1 promoter VNTR – K232A haplotypes regarding milk production traits in German Holstein cows

DGAT1 haplotype^a	Milk yield [kg]	Milk fat content [%]	Milk fat yield [kg]	Milk protein content [%]	Milk protein yield [kg]
	pa – ma^b	pa – ma^b	pa – ma^b	pa – ma^b	pa – ma^b
3 – 232K	324.44^0.001 (98.2)	-0.107^0.003 (0.036)	4.24^0.276 (3.89)	-0.023 ^0.149 (0.017)	8.93^0.002 (2.93)
1 – 232A	-467.13^0.019 (198.47)	0.20^0.006 (0.07)	-1.85 ^0.813 (7.85)	0.086^0.010 (0.033)	-8.16^0.169 (5.92)
2 – 232A	35.25 ^0.801 (139.84)	-0.050 ^0.330 (0.050)	-3.09^0.577 (5.53)	-0.029 ^0.223 (0.024)	-1.47^0.726 (4.17)
3 – 232A	139.48^0.318 (139.56)	-0.091 ^0.076 (0.051)	-1.94 ^0.726 (5.52)	-0.042 ^0.076 (0.025)	1.06^0.800 (4.17)
4 – 232A	-32.43 ^0.718 (89.66)	0.028 ^0.388 (0.033)	0.70^0.843 (3.55)	0.011^0.451 (0.015)	-0.20^0.939 (2.68)
5 – 232A	0.39 ^0.997 (104.9)	0.019 ^0.620 (0.038)	1.94 ^0.640 (4.15)	-0.003^0.854 (0.018)	-0.16^0.958 (3.13)
p	0.020	0.009	0.864	0.110	0.083

^a1, 2, 3, 4, 5: alleles at the DGAT1 promoter VNTR; K: DGAT1 232K, A: DGAT1 232A; p: p-values for the F statistic of the simultaneous test of the parent-of-origin effect over all haplotypes. ^bp-values for the contrast between single paternally (pa) and maternally (ma) inherited haplotypes are given as indices

ISSN: 2730-6844