Optimising multistage dairy cattle breeding schemes including genomic selection using decorrelated or optimum selection indices

Table 3 The accuracy of estimated breeding values of successive selection stages, $r_{GEB V^{1}} = 0.75$

Selection path	Selection stage		Accuracy of estimated breeding values by stage
			Optimum indices		decorrelated indices
	PED²	GS³	PED	PED + GS	PED	GS
SD⁴	yes	no	0.177	-	0.177	-
DS⁵	yes	no	0.347	-	0.347	-
SD	yes	no	0.427	-	0.427	-
DS	yes	yes	0.379	0.766	0.379	0.606
SD	yes	yes	0.441	0.754	0.441	0.612
DS	yes	no	0.499	-	0.499	-
SD	yes	yes	0.537	0.754	0.537	0.530
DS	yes	yes	0.50	0.773	0.50	0.589

The accuracy of estimated breeding values of successive selection stages as a function of the implementation of genomic selection and the used selection indices. 1: accuracy estimated genomic breeding value, 2: selection on performance and GEBV of ancestors and sibs, 3: selection on candidates own GEBV, 4: selection path "sire to dam", 5: selection path "dam to sire"

ISSN: 1297-9686