Fundamentals of Managing Light for Poultry
Controlling the light environment is a valuable tool for improving egg production and growth of poultry. Light can influence behavior, metabolic rate, physical activity, and physiological factors such as those involving the reproductive system. Light is typically supplied by a combination of natural and artificial sources; with the amount of each depending upon the season of the year and the distance from the equator. Visible white light is a composite of different colors that can be seen when sunlight passes through a prism. These colors represent specific regions of the light spectrum and the light energy produced represents specific wavelengths of the electromagnetic spectrum (Figure 10–1)
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