Genomic selection strategies in a small dairy cattle population evaluated for genetic gain and profit

TY - JOUR

T1 - Genomic selection strategies in a small dairy cattle population evaluated for genetic gain and profit

AU - Thomasen, Jørn Rind

AU - Egger-Danner, C

AU - Willam, A

AU - Guldbrandtsen, Bernt

AU - Lund, Mogens Sandø

AU - Sørensen, Anders Christian

PY - 2014/1

Y1 - 2014/1

N2 - Small dairy cattle populations are challenged because of the low reliabilities of genomic predictions. We have demonstrated that low reliabilities of genomic predictions sets limitations for moving towards more genetic efficient breeding schemes with more intensive use of young bulls without progeny testing. Strong positive interaction effects between increased reliability of genomic predictions and more intensive use of young bulls exist. From an economic perspective a juvenile scheme is always advantageous. The main future focus area for the smaller dairy cattle breeds is to join forces that increase reliabilities of genomic predictions.

AB - Small dairy cattle populations are challenged because of the low reliabilities of genomic predictions. We have demonstrated that low reliabilities of genomic predictions sets limitations for moving towards more genetic efficient breeding schemes with more intensive use of young bulls without progeny testing. Strong positive interaction effects between increased reliability of genomic predictions and more intensive use of young bulls exist. From an economic perspective a juvenile scheme is always advantageous. The main future focus area for the smaller dairy cattle breeds is to join forces that increase reliabilities of genomic predictions.

U2 - 10.3168/jds.2013-6599

DO - 10.3168/jds.2013-6599

M3 - Journal article

C2 - 24239076

SN - 0022-0302

VL - 97

SP - 458

EP - 470

JO - Journal of Dairy Science

JF - Journal of Dairy Science

IS - 1

ER -