Service cock only indirectly affects hatchability in laying hens

Journal Title: Animal Science Papers and Reports - Year 2010, Vol 28, Issue 2

Abstract

The purpose of the study was to investigate the effect of service sire on fertilization rate and loses during hatching as a way of increasing the accuracy of breeding value estimation of layers for hatchability. Layers from five generations of two breeds – Rhode Island White and Rhode Island Red – were individually recorded for fertilization rate, percentage of chicks hatched from eggs laid, set, and fertilized. Two statistical models, both fitting random animal additive genetic and permanent environment effects along with fixed joint effect of hatch-year × hatch-number, differed with regard to presence or absence of random effect of service sire. Of the traits studied fertilization rate is least influenced by service sire which can be neglected when evaluating fertilization. Although service sire effect is small, both absolutely and relatively, failing to account for it in a model evaluating number of chicks hatched may result in substantial overestimation of heritability. Service sire effect accounted for in the model can also add to the accuracy of the hens’ proofs for hatchability. Correlation between direct additive and service sire effects may be dependent on the population it is estimated in.

Authors and Affiliations

Iwona Rozempolska-Rucińska, Grzegorz Zięba, Marek Łukaszewicz

Keywords

Related Articles

The effects of sex and slaughter weight on muscle fibre characteristics and physico-chemical properties of lamb longissimus thoracis muscle

The objective was to investigate the effect of sex and slaughter weight on muscle fibre and meat quality traits of longissimus thoracis (LT) muscle in lambs. Used were 22 female and 30 male lambs of Polish Longwool sheep...

Effect of injected position of cultured cumulus cells as donor cells on reconstructed in vitro matured porcine oocytes

The effect was studied of injected position of cultured cumulus cells as donor cells for nuclear transfer on the process of in vitro matured reconstructed porcine oocytes. The cumulus-oocyte complexes (COCs) obtained fro...

Effect of inbreeding on body growth traits and sperm DNA fragmentation level in rams

On a small closed population of Mis sheep the relationship was studied of the influence of inbreeding on body weight growth from birth to the age of 18 months and sperm DNA fragmentation in rams. Two groups of male lambs...

The effects of diet supplementation with yeast on the expression of selected immune system genes in the milk somatic cells of dairy goats

The aim of the study was to evaluate the impact of diet supplementation with active yeast culture (Saccharomyces cerevisiae) on the expression of selected immune system genes in goat milk somatic cells (MSC) and on milk...

Genetic distance between three breeds of dogs based on selected microsatellite sequences

The aim of this study was to evaluate genetic diversity and genetic distance between three breeds of dogs: Bernese Mountain Dog (BMD), Chihuahua (Ch) and Caucasian Shepherd Dog (CSD), based on microsatellite sequences co...

Download PDF file
  • EP ID EP71428
  • DOI -
  • Views 109
  • Downloads 0

How To Cite

Iwona Rozempolska-Rucińska, Grzegorz Zięba, Marek Łukaszewicz (2010). Service cock only indirectly affects hatchability in laying hens. Animal Science Papers and Reports, 28(2), 153-160. https://europub.co.uk/articles/-A-71428