Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2019 | Volume: 19 | Issue: 8 | Page No.: 818-826
DOI: 10.3923/jas.2019.818.826
Pre-hatch and Post-hatch Egg Breakout and Hatchability Analysis as an Indicator to Increase Layer Breeder Performance and Egg Hatchability
J.A. Hamidu , D.A. Jerebi, M.A. Okai, D. Wakpal and L.A. Konadu

Abstract:
Background and Objective: An experiment was conducted to analyze mating behaviors of layer breeders, time of egg collection and general handling of eggs, days of egg storage and incubation control mechanisms and records of hatchability and chick quality indicators. The study was conducted at the Olympio hatchery, Department of Animal Science, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana. Materials and Methods: Four consecutive hatching regimes (from breeding flock through to the hatchery) were observed and monitored. Eggs collected were stored in the cold room at a temperature of 16°C and RH of 70% and pre-warmed for about 6 h interval before setting them in an incubator. Hatchability at the end of incubation was assessed and breakout of hatch debris was done for each regime to measure the impact of incubation parameters on embryo and content of residue left after 21.5 days of incubation. Results: Average mating within 3 h of observation between 05:00-08:00 GMT was between 47-50 times. Pen house temperature and egg room temperature which were 27-32°C were high and above physiological zero especially in the afternoons. When eggs were incubated the eggshell temperature (EST) fluctuated between the time of the day. The EST increased steadily at all times of the day from E11-E17 as the experiment progressed due to the increase in metabolic activity of the growing embryo. The incubator air temperature was not the same as EST. Conclusion: The study showed that long storage of eggs beyond 7 days increased early embryonic mortality.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Impact of Egg Storage Duration and Temperature on Egg Quality, Fertility, Hatchability and Chick Quality in Naked Neck Chickens
How to cite this article:

J.A. Hamidu, D.A. Jerebi, M.A. Okai, D. Wakpal and L.A. Konadu, 2019. Pre-hatch and Post-hatch Egg Breakout and Hatchability Analysis as an Indicator to Increase Layer Breeder Performance and Egg Hatchability. Journal of Applied Sciences, 19: 818-826.

DOI: 10.3923/jas.2019.818.826

URL: https://scialert.net/abstract/?doi=jas.2019.818.826

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

       

       

Curve Bottom