Highly fecund aquaculture species provide more opportunities to optimize genotyping effort in genomic selection programs through selective genotyping and pre-selection than other livestock species. The aim of this study is to optimize pre-selection in a simulated fish breeding program to achieve the highest genetic gain per genotyped fish under restricted inbreeding. We simulated breeding programs in R with preselection among all selection candidates, between full sib families and within full sib families and several pre-selection intensities within each of the strategies. Pre-selection always reduces genetic gain. However, when genotyping costs are taken into account, genetic gain per genotyped fish can be increased with preselection. Pre-selecting 40% of the candidates from all available selection candidates produced the highest additional genetic gain per genotyped fish.
Proceedings of 12th World Congress on Genetics Applied to Livestock Production (WCGALP)
Technical and species orientated innovations in animal breeding, and contribution of genetics to solving societal challenges
EditorsR.F. Veerkamp and Y. de Haas
Published: 2022 Pages: 3364
eISBN: 978-90-8686-940-4
Book Type: Conference Proceedings
581. Optimizing genotyping effort in aquaculture breeding programs by pre-selection of candidates
C. Roozeboom Related information
1Wageningen University & Research, P.O. Box 338, 6708 PB Wageningen, the Netherlands.
*Corresponding author: chantal. roozeboom@wur. nl
, B. Gulzari Related information*Corresponding author: chantal.
1Wageningen University & Research, P.O. Box 338, 6708 PB Wageningen, the Netherlands.
, H. Komen Related information1Wageningen University & Research, P.O. Box 338, 6708 PB Wageningen, the Netherlands.
, J.W.M. Bastiaansen Related information1Wageningen University & Research, P.O. Box 338, 6708 PB Wageningen, the Netherlands.
Pages: 2407 - 2411
Published Online: February 09, 2023
Abstract: