Campus Units
Animal Science
Document Type
Article
Publication Version
Published Version
Publication Date
2010
Journal or Book Title
Journal of Animal and Feed Sciences
Volume
19
Issue
3
First Page
452
Last Page
459
DOI
10.22358/jafs/66309/2010
Abstract
In a population of Rhode Island White hens heritability of egg formation, clutch characters and traditional selection traits as well as the genetic and phenotypic correlations between them were estimated via multitrait animal model. Over 1300 birds and about 4000 birds were recorded in two consecutive generations for oviposition time and traditional traits, respectively. The heritability estimates obtained for classical selection criteria: age at first egg (h2=0.42), egg weight (h2=0.50) and body weight (h2=0.42) were considerably higher than those for egg production traits: initial egg production (h2=0.22), clutch traits (h2 between 0.11 and 0.23) and oviposition time (h2 between 0.13 and 0.19). Both genetic and phenotypic correlations between clutch traits and traditional selection traits were low, except for initial egg production and maximal clutch length (rg=0.40 and rp=0.38). As expected, negative correlations were registered for number of clutches and average clutch length. It indicates an opportunity of selection aimed at improvement of egg production persistence by an increase in the average clutch size. Oviposition time was favourably correlated with traditional selection criteria.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Owner
Journal of Animal and Feed Sciences
Copyright Date
2010
Language
en
File Format
application/pdf
Recommended Citation
Wolc, Anna; Bednarczyk, M.; Lisowsk, M.; and Szwaczkowsk, T., "Genetic relationships among time of egg formation, clutch traits and traditional selection traits in laying hens" (2010). Animal Science Publications. 657.
https://lib.dr.iastate.edu/ans_pubs/657
Included in
Agriculture Commons, Evolution Commons, Genetics and Genomics Commons, Poultry or Avian Science Commons
Comments
This article is published as Wolc, A., M. Bednarczyk, M. Lisowski, and T. Szwaczkowski. "Genetic relationships among time of egg formation, clutch traits and traditional selection traits in laying hens." Journal of Animal and Feed Sciences 19, no. 3 (2010). doi: 10.22358/jafs/66309/2010.