Spectral sensitivity curves of domestic poultry were determined byPrescott & Whates (1999), using behavioral tests, and by Wortel et al.(1987), using an electro-physiological test. These researchers reportedthat poultry sensitivity is different from that of humans: poultry presentbroader sensitivity, perceiving ultraviolet A rays (UVA 320 <8 <400nm).According to Boni & Paes (1999), broiler breeders produce morereproductive hormones when submitted to lighting with rays from theends of the spectrum, such as purple and orange.
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