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Related Experiment Videos

Time budgets in growing chicks.

W L Hill, C Rovee-Collier, G Collier

    Physiology & Behavior
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Young chicks flexibly adjust their daily schedules to maintain growth, even with limited light or competing social needs. They alter feeding habits and utilize nighttime hours to ensure consistent development and social interaction.

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    Area of Science:

    • Animal Behavior
    • Chronobiology
    • Developmental Biology

    Background:

    • Understanding how young animals manage their time is crucial for developmental biology.
    • Diurnal activity patterns are influenced by environmental factors like light and social interactions.

    Purpose of the Study:

    • To investigate how rapidly growing chicks allocate time among daily activities under varying light conditions.
    • To assess the impact of behavioral plasticity on chick growth and time budgets.

    Main Methods:

    • Two experiments recorded 24-hour patterns of feeding, drinking, nesting, and wheel-running in chicks.
    • Photoperiods were manipulated (12, 6, 18 hours of light) with and without social partner access.

    Main Results:

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    • Chicks demonstrated remarkable behavioral plasticity, maintaining high growth rates despite temporal constraints.
    • Adaptations included altered feeding rates and nocturnal feeding, rather than eliminating other activities.
    • When social and feeding activities competed, chicks increased feeding rate to balance social needs and growth.

    Conclusions:

    • Chick time budgets are highly adaptable, prioritizing growth and social interaction.
    • Buffer time (unallocated time) is a key defended component of the daily budget under environmental challenges.
    • Immature organisms exhibit stable time allocation, suggesting innate time budgeting mechanisms.