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Dietary sodium for laying hens.

B L Reid

    Poultry Science
    |January 1, 1977
    PubMed
    Summary

    Determining dietary sodium needs for laying hens is crucial for optimal egg production. Hens in different housing environments require specific sodium levels to maintain high productivity rates.

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    Area of Science:

    • Animal Science
    • Poultry Nutrition
    • Environmental Physiology

    Background:

    • Laying hen productivity is influenced by environmental factors and diet.
    • Housing systems, such as open type and evaporatively cooled, create different thermal conditions.
    • Sodium is an essential nutrient for poultry, impacting physiological functions and egg production.

    Purpose of the Study:

    • To ascertain the precise dietary sodium requirements for laying hens.
    • To compare these requirements between open type and evaporatively cooled housing systems.
    • To evaluate the impact of varying sodium levels on hen production rates.

    Main Methods:

    • Laying hens were housed in two distinct environmental conditions: open type and evaporatively cooled.
    • Diets with varying sodium concentrations were administered.
    • Egg production rates were monitored over a 28-week period.

    Main Results:

    • The optimal dietary sodium requirement was determined to be 0.126% for open type housing.
    • A requirement of 0.145% dietary sodium was established for evaporatively cooled housing.
    • A low sodium level of 0.04% supported production rates of 49.1% and 60.3% in the respective housing types.

    Conclusions:

    • Dietary sodium requirements for laying hens vary significantly based on housing environment.
    • Evaporatively cooled housing necessitates a higher sodium intake for optimal hen performance.
    • These findings provide critical data for formulating poultry diets to maximize egg production efficiency.

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