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Related Experiment Videos

Three parameters affecting interlitter variations.

V E Woods, H T Epstein

    Developmental Psychobiology
    |July 1, 1979
    PubMed
    Summary
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    Researchers identified key factors influencing mouse litter weight variation. By controlling birth weight, growth potential, and maternal competence, they significantly reduced weight differences, improving experimental consistency.

    Area of Science:

    • Animal Science
    • Developmental Biology
    • Genetics

    Background:

    • Mouse litter weight variation can impact research outcomes.
    • Understanding factors influencing litter weight is crucial for experimental reproducibility.

    Purpose of the Study:

    • To quantify the contribution of three key parameters to average body weight differences in mouse litters.
    • To develop methods for controlling these parameters and reducing litter weight variation.

    Main Methods:

    • Studied birth weight, genetically based growth potential, and maternal competence.
    • Developed and applied methods to control these identified parameters.

    Main Results:

    • Reduced litter-average body weight differences from over 24% to approximately 3%.

    Related Experiment Videos

  • Quantified contributions: maternal competence (12%), growth potential (6%), and initial birth weight (3%).

    • Conclusions:

    • Controlling specific parameters significantly minimizes mouse litter weight variability.
    • This control enhances the reliability and consistency of mouse model studies.