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

Table 2 Number of different selection strategies in each selection path

path	$r_{GEB V^{1}}$	n²	$n_{P d^{3}}$		$n_{P d + P T^{4}}$		$n_{P d + G S^{5}}$		$n_{P d + G S + P T^{6}}$		$n_{G S^{7}}$
			DSI⁸	OSI⁹	DSI	OSI	DSI	OSI	DSI	OSI	DSI	DSI
SD¹⁰	0.3-0.4	195	0	0	120	0	23	22	52	173	0	0
SS¹¹	0.3-0.45	273	0	0	120	0	30	25	123	248	0	0
SD	0.45-0.9	741	0	0	0	0	61	741	0	0	680	0
DS¹²	0.425-0.5	156	0	0	0	0	156	156	0	0	0	0
DS	0.3-0.9	975	221	121	0	0	754	854	0	0	0	0

Number of different selection strategies in each selection path of breeding schemes which maximised Δ G_a and the accuracy of estimated genomic breeding values. 1: parameter space for the accuracy of estimated genomic breeding values, 2: number of possible breeding schemes within the given parameter space, 3: number of schemes with selection only on pedigree data, 4: number of schemes with selection on pedigree data and progeny performance, 5: number of schemes with selection on pedigree data and estimated genomic breeding values, 6: number of schemes with selection on pedigree data, estimated genomic breeding values and progeny performance, 7: number of schemes with selection only on estimated genomic breeding values, 8: decorrelated indices are used, 9: optimum indices are used, 10: selection path "sire-dam", 11: selection path "sire-sire", 12: selection path "dam-sire", the parameter space for the cost of genomic selection per genotyped individual is 20-400 €

ISSN: 1297-9686