2000
DOI: 10.1046/j.1439-0388.2000.00258.x
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Genetic and phenotypic parameters for monthly egg production in White Leghorn hens

Abstract: This article reports genetic and phenotypic parameters of monthly egg production and the influence of Box-Cox transformation on the parameters from a population of White Leghorns, selected for feed efficiency. A total of 6450 daughters of 180 sires and 1335 dams were analysed by restricted maximum likelihood (REML) using a multivariate animal model. The traits considered were monthly egg productions, cumulative production of the first 5 months (S5), cumulative production of first 10 months (S10), and survivor … Show more

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Cited by 34 publications
(30 citation statements)
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“…Similarly, the other periods had less genetic association among them when they were more distant in time. Such results were also observed for egg production in laying hens by Anang et al (2000), Szwaczkowski (2003), Luo et al (2007), and Wolc et al (2007).…”
Section: Random Regression For Egg Productionsupporting
confidence: 73%
“…Similarly, the other periods had less genetic association among them when they were more distant in time. Such results were also observed for egg production in laying hens by Anang et al (2000), Szwaczkowski (2003), Luo et al (2007), and Wolc et al (2007).…”
Section: Random Regression For Egg Productionsupporting
confidence: 73%
“…Knowledge about the patterns of egg-laying might contribute to more accurate prediction of genetic effects. There are several studies on monthly egg production reporting genetic parameters (ZIĘBA, 1990;PREISINGER and SAVAS, 1997;SAVAS et al, 1998;ANANG et al, 2000;NURGIARTININGSIH et al, 2002NURGIARTININGSIH et al, , 2005. In the last years the rapid development of regression methodology is observed.…”
Section: Introductionmentioning
confidence: 99%
“…3). A magnitude das estimativas aumentou novamente ao final da postura, semelhante aos resultados de Anang et al (2000). Cavero et al (2010) estudaram uma linha pura em duas metodologias e relataram herdabilidades de 0,37 a 0,4 para produção de ovos da 20ª à 27ª semana de idade, de 0,13 e 0,24 da 28ª à 47ª e de 0,17 a 0,30 da 28ª à 48ª semana de idade.…”
Section: Resultsunclassified