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Related Experiment Videos

Lighting programs for broilers that reduce leg problems without loss of performance or yield

J A Renden1, E T Moran, S A Kincaid

  • 1Department of Poultry Science, Auburn University, Alabama 36849, USA.

Poultry Science
|November 1, 1996
PubMed
Summary

Optimizing light schedules for broiler chickens significantly impacts growth and health. Specific intermittent light patterns improved body weight and reduced leg problems, enhancing overall broiler performance.

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Area of Science:

  • Animal Science
  • Poultry Science
  • Animal Husbandry

Background:

  • Light management is a critical factor influencing broiler chicken performance and welfare.
  • Understanding optimal light schedules can lead to improved production efficiency and reduced health issues.

Purpose of the Study:

  • To evaluate the impact of different light schedules on the performance and yield of broiler chickens.
  • To determine the effects of continuous and intermittent light treatments on body weight, leg problems, and carcass quality.

Main Methods:

  • Two experiments were conducted with broiler chickens subjected to various light schedules (hours of light:dark) from 1 to 49 days of age.
  • Experiment 1 included 23h light:1h dark, 16h light:8h dark, and two intermittent schedules.
  • Experiment 2 utilized variations of continuous and intermittent lighting, including a step-up lighting program.

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Main Results:

  • In Experiment 1, a specific intermittent light schedule (16L:2D:1L:2D:1L:2D) resulted in greater body weight and a higher percentage of Grade A carcasses compared to a 16L:8D schedule.
  • This intermittent schedule also led to a significant reduction in leg problems compared to continuous light (23L:1D).
  • In Experiment 2, continuous light (23L:1D) yielded higher body weight at 21 days, while an intermittent schedule (16L:8D) reduced the incidence of tibial dyschondroplasia.

Conclusions:

  • Specific intermittent light schedules can enhance broiler performance, including body weight gain and carcass quality.
  • Optimized light regimens are effective in reducing leg abnormalities and improving broiler health.
  • Light scheduling is a key management tool for improving broiler production efficiency and welfare.