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Related Experiment Videos

A repartitioning agent to improve performance and carcass composition of broilers.

R H Dalrymple, P K Baker, P E Gingher

    Poultry Science
    |December 1, 1984
    PubMed
    Summary

    Clenbuterol supplementation in broiler feed significantly improved weight gain and feed efficiency. It also enhanced carcass yield and reduced fat content, indicating positive effects on broiler performance and meat quality.

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    Area of Science:

    • Animal Science
    • Poultry Science
    • Animal Nutrition

    Background:

    • Clenbuterol is a beta-2 adrenergic agonist.
    • Its effects on broiler performance and carcass characteristics require detailed investigation.

    Purpose of the Study:

    • To evaluate the impact of clenbuterol on broiler growth, feed efficiency, and carcass traits.
    • To determine optimal dosage and withdrawal periods for clenbuterol administration.

    Main Methods:

    • Broilers were fed clenbuterol at various concentrations (0.25-4 ppm) during the finisher phase (28-49 days).
    • Performance metrics (weight gain, feed efficiency) and carcass characteristics (yield, fat content) were analyzed.
    • Experiments included different clenbuterol withdrawal times before evaluation.

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    Main Results:

    • Clenbuterol significantly improved weight gain and feed efficiency across tested levels.
    • Body composition analysis showed increased protein and water, with decreased fat content, particularly in females.
    • Carcass yield increased, while abdominal fat decreased, especially with a 1 ppm dose and strategic withdrawal.

    Conclusions:

    • Clenbuterol administration enhances broiler performance and carcass quality.
    • Optimal results were observed with a 1 ppm dosage and a 3-5 day withdrawal period prior to slaughter.
    • Further research could explore long-term effects and residue analysis.