The superiority of multi-trait models with genotype-by-environment interactions in a limited number of environments for genomic prediction in pigs

Table 1 Summary statistics for the two Yorkshire pig populations, including the numbers of genotyped animals and estimates of heritability (h²)

Population^a	Trait^b	N-obs^c	Max	Min	SD	Genotyped animals	h² (SE)
Beijing	AGE	28,827	210.98	124	13.86	1732	0.33(0.01)
	BFT	28,827	30.74	5.03	2.43	1732	0.34 (0.01)
	NBA	5,968/20,005	21	0	3.13	923	0.07 (0.01)
	TNB	5,968/20,005	25	0	3.09	923	0.08 (0.01)
Fujian	AGE	13,860	206.31	119.9	10.27	956	0.42 (0.02)
	BFT	13,860	28.62	4.09	3.64	956	0.44 (0.02)
	NBA	3,115/11,731	22	0	2.88	461	0.09 (0.02)
	TNB	3,115/11,731	22	1	2.98	461	0.11 (0.02)

^a Yorkshire pig populations from Beijing and Fujian with similar genetic backgrounds but located in the north and south of China
^b AGE: days to 100 kg; BFT: backfat thickness at 100 kg; NBA: number of piglets born alive; TNB: total number of piglets born
^c N-obs: number of individuals/observations

ISSN: 2049-1891