Influence of light wavelength on viability and reproductive function of hens

Keywords: laying hens, egg-laying, preservation, live weight, light wavelength, light color


The article presents the results of influence of monochrome light with different light wavelengths on the hens’ viability and productivity. For this purpose, in the conditions of a modern complex for production of food eggs in a poultry house with an area of 2915 m2, 4 groups of hens of the industrial herd “Hy-Line W-36” were formed, each of which was kept in a separate poultry house similar in area and cage equipment. Each poultry house was equipped with “Big Dutchman” cage batteries, consisting of 1176 cages with an area of 40544 cm2. The differences between the poultry houses applied only to LED lamps. Hens of the 1st group were kept using LED lamps with a peak light wavelength of 458 nm (blue color of the spectrum), the 2nd group – 603 nm (yellow color of the spectrum), the 3rd group – 632 nm (orange color of the spectrum) and 4 groups – 653 nm (red color of the spectrum). Every day, for 34 weeks of the productive period (up to 52 weeks of age), the number of eggs laid by the laying hens of each group was determined. The number of hatched hens (due to death and culling) was also counted daily and the number of livestock was determined. Once a week, the weight of eggs and live weight of laying hens were measured from certain labeled cages. It was found that the reduction of the wavelength of light during the keeping of hens in the cages of multi-tiered batteries affects their viability and reproductive function. The decrease in the peak wavelength from 653 to 632 nm, which was manifested by a change in the color of light from red to orange, was accompanied by a decrease in the preservation by 0.3 %, body weight – by 0.8 %, egg laying on the initial laying – by 3.1 %, egg-laying per average laying hen – by 2.8 % and feed costs – by 0.2 %. The decrease in the peak wavelength to 603 nm, that is the change in the color of light from red and orange to yellow, was accompanied by a decrease in the preservation by 6.4–6.7 %, body weight – by 0.5–1.3 %, egg production by initial laying hen – by 7.1–10.0 %, laying hens on the average laying hen – by 0.4–3.2 % and feed costs – by 2.0–2.1 %. The decrease in the peak wavelength to 458 nm, that is the change in light color from red, orange and yellow to blue, was accompanied by a decrease in the preservation by 3.2–9.9 %, body weight – by 5.2–6.5 %, laying hens per initial laying hen – by 6.4–15.8 %, laying hens per middle laying hen – by 2.9–6.0 % and feed costs – by 1.0–3.1 %.


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How to Cite
Osadcha, Y., & Sakhatsky, G. (2021). Influence of light wavelength on viability and reproductive function of hens. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Agricultural Sciences, 23(95), 76-81.