Table 1.

Traits, summary statistics, and trait categories of multiple-trait analysis

Traits	Full names of traits	dEBVa				Accuracy		Trait categories used for multiple-trait analysisb
		N	Mean	Min	Max	Mean	SD	H	C	S	HC	HCS
AFS	Age at first service	5,123	81	-1,790	1,992	0.56	0.02	√			√	√
FSTCh	First service to conception heifer	5,451	114	-1,934	2,134	0.55	0.03	√			√	√
NRRh	Non-return rate heifer	5,374	86	-1,939	2,137	0.55	0.03	√			√	√
CEh	Calving ease heifer	4,623	122	-1,726	1,925	0.56	0.02	√			√	√
CSh	Calf survival heifer	5,168	121	-1,887	2,082	0.55	0.03	√			√	√
CA	Calving ability	5,986	110	-1,881	2,074	0.56	0.02	√	√		√	√
CTFS	Calving to first service	4,800	125	-1,847	2,046	0.56	0.02		√		√	√
DO	Days open	5,034	93	-1,773	1,970	0.55	0.02		√		√	√
FSTCc	First service to conception cow	5,036	88	-1,835	2,032	0.55	0.02		√		√	√
NRRc	Non-return rate cow	5,283	105	-1,923	2,118	0.55	0.02		√		√	√
CEc	Calving ease cow	4,761	101	-1,814	2,012	0.56	0.02		√		√	√
CSc	Calf survival cow	5,045	122	-1,956	2,156	0.55	0.03		√		√	√
DCA	Daughter calving ability	5,191	116	-1,874	2,072	0.55	0.02		√		√	√
DF	Daughter fertility	5,529	106	-1,851	2,048	0.55	0.02		√		√	√
SCEh	Sire calving ease heifer	5,782	85	-1,974	2,167	0.56	0.02			√		√
SCEc	Sire calving ease cow	5,133	112	-1,974	2,171	0.56	0.02			√		√
SCSh	Sire calf survival heifer	4,687	109	-1,897	2,103	0.54	0.02			√		√
SCSc	Sire calf survival cow	3,803	113	-1,887	2,100	0.53	0.02			√		√

^adEBV: deregressed estimated breeding values

^bThe trait categories are defined with respective to heifers (H), cows (C), sires (S), heifers and cows (HC), and all the animals together (HCS), respectively