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Assessing Temperature Distribution inside Commercial Stacked Cage Broiler Houses in Winter.

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Broiler house temperature uniformity decreases with age, increasing cold and heat stress. Solar radiation and wind speed significantly impact temperature distribution, affecting broiler welfare and productivity.

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Area of Science:

  • Animal Science
  • Agricultural Engineering
  • Environmental Science

Background:

  • Temperature uniformity is critical for broiler health, welfare, and productivity.
  • High stocking densities exacerbate temperature nonuniformity, leading to broiler stress.
  • Assessing temperature distribution and its influencing factors is essential for optimal broiler housing.

Purpose of the Study:

  • To monitor temperature distribution and uniformity in a commercial broiler house.
  • To investigate factors affecting temperature uniformity, including solar radiation and wind speed.
  • To analyze the impact of temperature fluctuations on broiler production.

Main Methods:

  • Continuous monitoring of temperature, wind velocity, and differential pressure in a stacked-deck cage broiler house.
  • Measurements taken at various locations: aisle, sidewall inlets, and outside sidewalls.
  • Data collected throughout the entire broiler fattening period.

Main Results:

  • Maximum temperature difference increased from 1.85 °C to 6.43 °C; daily fluctuation rose from 2.27 °C to 5.80 °C.
  • Highest temperatures consistently recorded near exhaust fans (longitudinal).
  • Lateral temperature differences correlated with solar radiation and wind speed, with solar-facing sides warmer during radiation periods.

Conclusions:

  • Inside temperature nonuniformity and fluctuation increase with broiler age, impacting production performance.
  • Nonuniform solar radiation and wind speed create temperature disparities between sidewalls.
  • Maintaining temperature uniformity is crucial for broiler welfare and productivity.