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Twisted legs in broilers.

U Haye, P C Simons

    British Poultry Science
    |July 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Broiler leg abnormalities, particularly twisted legs, are influenced by genetics, housing, and nutrition. Reducing early metabolisable energy (ME) intake significantly lowers leg problems in broilers.

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    Area of Science:

    • Poultry Science
    • Animal Husbandry
    • Avian Health

    Background:

    • Leg abnormalities are a significant welfare and economic concern in broiler production.
    • Factors influencing leg health require detailed investigation to improve flock management.

    Purpose of the Study:

    • To investigate the impact of various factors on the incidence of leg abnormalities, specifically twisted legs, in broiler chickens.
    • To identify key management and environmental variables affecting broiler leg health.

    Main Methods:

    • Studied the influence of broiler strain, sex, and housing type (cages vs. litter) on leg abnormality incidence.
    • Evaluated the effect of different cage floor materials and dietary metabolisable energy (ME) restriction.
    • Assessed the role of cage size and waterer location in relation to exercise and leg health.

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    Main Results:

    • Male broilers exhibited twice the incidence of twisted legs compared to females.
    • Caged broilers had higher leg problem rates than those on litter, with floor type being significant (wire/perforated > plastic).
    • Restricting ME intake during the first 14 days halved leg abnormality frequency; vitamin/mineral supplementation had no effect in cages.

    Conclusions:

    • Broiler strain, sex, housing conditions, and early nutrition significantly affect leg abnormality incidence.
    • Cage design, particularly floor type and space, alongside early energy intake, are critical for preventing leg problems in broilers.