Projects per year
Compromised eggshell quality causes considerable economic losses for the egg industry. Breeding for improved eggshell quality has been very challenging. Eggshell quality is a trait that would greatly benefit from marker-assisted selection, which would allow the selection of sires for their direct contribution to the trait and would also allow implementation of measurements integrating a number of shell parameters that are difficult to measure. In this study, we selected the most promising autosomal quantitative trait loci (QTL) affecting eggshell quality on chromosomes 2, 3, 6 and 14 from earlier experiments and we extended the F2 population to include 1599 F2 females. The study was repeated on two commercial populations: Lohmann Tierzucht Rhode Island Red line (n = 692 females) and a Hy-Line White Plymouth Rock line (n = 290 progeny tested males). We analyzed the selected autosomal QTL regions on the three populations with SNP markers at 4-13 SNPs/Mb density. QTL for eggshell quality were replicated on all studied regions in the F2 population. New QTL were detected for eggshell color on chromosomes 3 and 6. Marker associations with eggshell quality traits were validated in the tested commercial lines on chromosomes 2, 3 and 6, thus paving the way for marker-assisted selection for improved eggshell quality.
|Early online date||24 May 2018|
|Publication status||Published - 24 May 2018|
- breaking strength
- SNP marker
FingerprintDive into the research topics of 'Validated quantitative trait loci for eggshell quality in experimental and commercial laying hens'. Together they form a unique fingerprint.
- 1 Finished
RTDF-UK in situ source area bioremediation( SABRE)
17/09/04 → 16/09/08
- 1 Invited talk
Opportunities for genetic improvement in egg quality
Ian Dunn (Invited speaker)23 Jun 2019 → 26 Jun 2019
Activity: Academic talk or presentation types › Invited talk