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

A model for individual egg production in chickens.

M Grossman1, W J Koops

  • 1Department of Animal Sciences, University of Illinois, Urbana 61801, USA. mikeg@uiuc.edu

Poultry Science
|July 27, 2001
PubMed
Summary

This study developed a new model for egg production curves using logistic functions to accurately predict annual egg yields. Summarizing data by 4-week intervals and using cumulative production improved prediction accuracy for genetic selection.

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

Downstream effects of polypathology on neurodegeneration of medial temporal lobe subregions.

Acta neuropathologica communications·2021
Same author

Pathological drivers of neurodegeneration in suspected non-Alzheimer's disease pathophysiology.

Alzheimer's research & therapy·2021
Same author

Hippocampal subfield pathologic burden in Lewy body diseases vs. Alzheimer's disease.

Neuropathology and applied neurobiology·2020
Same author

The differing pathophysiologies that underlie COVID-19-associated perniosis and thrombotic retiform purpura: a case series.

The British journal of dermatology·2020
Same author

Comparison of sporadic and familial behavioral variant frontotemporal dementia (FTD) in a North American cohort.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2020
Same author

Active lifestyles moderate clinical outcomes in autosomal dominant frontotemporal degeneration.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2020

Area of Science:

  • Animal Science
  • Quantitative Genetics
  • Statistical Modeling

Background:

  • Individual egg production curves are crucial for genetic selection in poultry.
  • Existing models may not fully capture the complexity of egg production phases.
  • Accurate prediction of annual egg production is vital for breeding programs.

Purpose of the Study:

  • To improve existing models for individual weekly egg production curves.
  • To model the curve as a sum of logistic functions for increasing and decreasing phases.
  • To enhance parameter estimation by summarizing data at different intervals and using cumulative production.

Main Methods:

  • Developed a model using a sum of logistic functions to represent egg production phases.
  • Applied the model to four data sets from two pairs of individuals.

Related Experiment Videos

  • Evaluated parameter estimation using 1-wk, 2-wk, and 4-wk intervals for weekly and cumulative egg production data.

    • Main Results:

    • The logistic function model accurately predicted total 52-week egg production within 1-2 eggs of actual production.
    • Parameter estimates remained stable across different weekly data summarization intervals (1, 2, or 4 weeks).
    • Using cumulative egg production data with 4-week intervals further improved the accuracy of 52-week production predictions.

    Conclusions:

    • The multiphasic logistic model provides a robust framework for analyzing individual egg production curves.
    • Summarizing data by 4-week intervals and using cumulative production enhances prediction accuracy for annual egg yield.
    • Incorporating persistency and curve shape into selection criteria can increase genetic gain for annual egg production.