Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/14333
Title: A Genomic Prediction Cross-Validation Approach Combining Ewe Repeated Phenotypes and Ram Daughter Trait Deviations
Contributor(s): Daetwyler, H D (author); Bolormaa, S (author); Brown, Daniel (author); Van Der Werf, Julius H (author)orcid ; Hayes, B J (author)
Publication Date: 2013
Handle Link: https://hdl.handle.net/1959.11/14333
Abstract: Reproduction traits generally are expressed later in life and have high economic value, which makes them good candidates for improvement through genomic selection. We derive genomic prediction equations for number of lambs weaned (NLW) from genotyped rams' daughter records and repeated ewe records for genotyped ewes to make the best use of all available information. In order to assess the accuracy of the genomic estimated breeding values (GEBV) for this trait, an across sire family cross-validation design is proposed, and was compared with fully random cross-validation. The accuracy of genomic BLUP (GBLUP) using both ram and ewe records is compared with GBLUP using only ewe records, as well as BLUP with no genomic information using both ram and ewe records. The combined approach resulted in higher accuracies than both GBLUP only using ewe records, and BLUP. The approach provides a way to make use of all data available to maximise accuracy of GEBVs for traits such as NLW.
Publication Type: Conference Publication
Conference Name: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action, Napier, New Zealand, 20th - 23rd October, 2013
Source of Publication: Proceedings of the Twentieth Conference of the Association for the Advancement of Animal Breeding and Genetics, p. 360-363
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Palmerston North, New Zealand
Field of Research (FOR): 070201 Animal Breeding
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Other Links: http://www.aaabg.org/aaabghome/proceedings20.php
Series Name: Proceedings of the AAABG ... Conference
Series Number : 20
Statistics to Oct 2018: Visitors: 371
Views: 386
Downloads: 0
Appears in Collections:Conference Publication

Files in This Item:
3 files
File Description SizeFormat 
Show full item record

Page view(s)

76
checked on Mar 23, 2019
Google Media

Google ScholarTM

Check

SCOPUSTM   
Citations

 

WEB OF SCIENCETM
Citations

 

Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.