Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Selection for increased egg mass under ahemeral light-dark cycles.

W H Foster

    British Poultry Science
    |June 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    The interaction of food additives and protein content in broiler diets.

    British poultry science·1983
    Same author

    Low spinal anaesthesia combined with local anaesthesia for caesarean section--an evaluation.

    South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde·1983
    Same author

    A search for genetic variation in the sex ratio at hatching.

    British poultry science·1980
    Same author

    Development, preparation and safety testing of a Clostridium welchii type C toxoid. I: preliminary observations in man in Papua New Guinea.

    Journal of biological standardization·1979
    Same author

    An alum-treated vaccine for the control of foot-rod in sheep.

    The Veterinary record·1972
    Same author

    A practical evaluation of five food additives likely to be used as growth promoters in broiler rations.

    British poultry science·1972
    Same journal

    Effects of lemongrass (<i>Cymbopogon citratus</i>) on slaughter performance, meat quality, and intestinal health in Muscovy ducks.

    British poultry science·2026
    Same journal

    Functional characterisation of pigeon egg proteins based on data-independent acquisition quantitative proteomics.

    British poultry science·2026
    Same journal

    Transcriptome and co-expression network analysis identified candidate genes for intramuscular fat deposition in chickens.

    British poultry science·2026
    Same journal

    Economic value analysis and development of economic weights for selection index construction in indigenous chicken genetic improvement.

    British poultry science·2026
    Same journal

    Features of the epizootic process and ways to improve measures to combat avian flu.

    British poultry science·2026
    Same journal

    Long-term selection responses in economic traits of three purebred layer lines.

    British poultry science·2026
    See all related articles

    Selection for increased egg mass production successfully reversed declining egg weight in hens under a 21-hour light-dark cycle. This approach maintained acceptable egg-laying rates despite the abnormal lighting conditions.

    Area of Science:

    • Animal Science
    • Avian Biology
    • Genetics

    Background:

    • Commercial poultry production faces challenges with maintaining egg quality metrics, such as egg weight, under artificial lighting conditions.
    • Previous experimental history showed a decline in egg weight, necessitating intervention.
    • Artificial light-dark cycles significantly impact poultry physiology and productivity.

    Purpose of the Study:

    • To investigate the efficacy of selecting for increased egg mass production in mitigating egg weight decline.
    • To assess the impact of this selection strategy on egg-laying rates under a 21-hour light-dark regime.
    • To determine if improved egg mass production can be achieved without compromising laying frequency.

    Main Methods:

    • Utilized a selective breeding program targeting egg mass production.

    Related Experiment Videos

  • Implemented an experimental 21-hour light-dark cycle (21L:3D).
  • Monitored and recorded key reproductive parameters, including egg weight and egg production rate.

    • Main Results:

    • Selection for higher egg mass successfully reversed the historical decline in egg weight.
    • The selected flock maintained an acceptable rate of egg production under the 21-hour light-dark cycle.
    • Demonstrated a positive correlation between selection for egg mass and improved egg weight.

    Conclusions:

    • Selective breeding for egg mass is an effective strategy to improve egg weight in poultry.
    • This approach allows for sustained egg production even under challenging, abnormal lighting conditions.
    • Highlights the potential for genetic selection to optimize poultry performance and egg quality.