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2/2003 vol. 12
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ORIGINAL PAPER
Bayesian estimates of genetic variance of fertility and hatchability under a threshold animal model
A. Dobek 1
,
 
M. Szydłowski 2
,
 
T. Szwaczkowski 2
,
 
E. Skotarczak 1
,
 
K. Moliński 1
 
 
 
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1
August Cieszkowski Agricultural University of Poznań, Department of Mathematical and Statistical Methods, Wojska Polskiego 28, 60-637 Poznań, Poland
 
2
August Cieszkowski Agricultural University of Poznań, Department of Genetics and Animal Breeding, Wołyńska 33, 60-637 Poznań, Poland
 
 
Publication date: 2003-04-04
 
 
J. Anim. Feed Sci. 2003;12(2):307-314
DOI: https://doi.org/10.22358/jafs/67709/2003
 
 
Article (PDF)
Citations (5)
 
KEYWORDS
genetic trend
genetic variance
Gibbs sampling
laying hens
threshold model
heritability
 
ABSTRACT
The genetic variability of fertility and hatchability of laying hens were studied in four strains under long-term selection for productive traits. Data were collected over nine generations. The total number of individuals recorded per strain ranged from 2015 to 5386. The traits were analysed as binary characters under the threshold animal model using Gibbs sampling. The point estimates of heritability of fertility were relatively high and ranged from 0.38 to 0.46. The estimates for hatchability were lower and ranged from 0.22 to 0.24. All the strains showed positive genetic trends.
 
CITATIONS (5):
1.
Genetic and permanent environmental variability of twinning in Thoroughbred horses estimated via three threshold models
A. Wolc, A. Bresinska, T. Szwaczkowski
Journal of Animal Breeding and Genetics
 
CrossRef
 
 
2.
Genetic evaluation of reproductive potential in the Zatorska goose under a conservation program
Magdalena Graczyk, Krzysztof Andres, Ewa Kapkowska, Tomasz Szwaczkowski
Animal Science Journal
 
CrossRef
 
 
3.
Longitudinal multiple-trait versus cumulative single-trait analysis of male and female fertility and hatchability in chickens
R.L. Sapp, R. Rekaya, I. Misztal, T. Wing
Poultry Science
 
CrossRef
 
 
4.
Entropy as a measure of dependency for categorized data
Ewa Skotarczak, Anita Dobek, Krzysztof Moliński
Biometrical Letters
 
CrossRef
 
 
5.
The algorithm of Bayesian estimation of maternal genetic and permanent maternal environmental variances in a two-trait binary threshold model
E. Skotarczak, M. Szyd, A. Dobek, K. Moli, T. Szwaczkowski
Czech Journal of Animal Science
 
CrossRef
 
 
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