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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
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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.

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.