Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 480390
Title Prediction of Heterosis in White Leghorn Crossbreds using Paternal 60K SNP Genotypes
Author(s) Amuzu, E.N.Y.; Bovenhuis, H.; Koning, D.J. de; Bijma, P.
Event WCGALP 2014 Conference, Vancouver, Canada, 2014-08-17/2014-08-22
Department(s) Animal Breeding and Genomics
Publication type Contribution in proceedings
Publication year 2014
Abstract Predicting heterosis for crossbred offspring of individual sires would harness variation between sires from the same pure-line, and can increase the utilization of heterosis in crossbreeding schemes. We aimed to derive the theoretical expectation for heterosis in crossbred offspring of individual sires, and then predict heterosis for these offspring. We used 60K SNP-genotypes from 3427 sires, allele frequencies from 9 pure-lines, and egg number records from 16 crosses between those lines, representing ~210,000 crossbred hens. Results show that it is possible to predict heterosis at the sire level, thereby distinguishing between sires within the same pure-line whose offspring will show higher heterosis. However, variation in predicted heterosis between sires within a line was low in our data; most differences were seen between lines. A potential improvement of the method would be to base predictions on a subset of SNPs with identified effects on heterosis.
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