INFLUENCE OF THE LIGHT WAVELENGTH OF MONOCHROME LED LAMPS ON LAYING HENS’ VIABILITY AND PRODUCTIVITY

Institute of Animal Breeding and Genetics named after M.V. Zubets of NAAS (Chubynske, Ukraine) The manifestation of the main hens economically useful traits under the influence of the monochrome LED lamps light wavelength was analyzed. For this purpose, 4 groups of hens were formed in the conditions of a modern complex to produce edible eggs, each of which was kept in a separate poultry house, similar in area and equipment, except for LED lamps. Нens of the 1st group were kept using LED lamps with a peak wavelength of ~ 490 nm (blue spectrum), group 2 ~ 540 nm (green spectrum), group 3 ~ 580 (yellow spectrum), and chickens of the 4th group ~ 660 nm (red spectrum). It was established that the optimal for laying hens body during the productive period of their use is the red spectrum of light with a wavelength of ~ 660 nm. The use of this LED lamps wavelength contributes to an increase in the hens survival by 3.3–12.9% (p < 0.001), their body weight by 5.2–5.4% (p < 0.001), egg production per initial layer by 9.0–22.6% (p < 0.001) and egg production per average layer by 7.5–15.9% (p < 0.001) while maintaining the same egg mass and increasing feed consumption by 1.7– 6.6% (p < 0.05; p < 0.001), compared to blue, green and yellow light spectra, respectively.