The effects of red and white LED lighting on laying performance in hens over 72 weeks of age.
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| Názov: | The effects of red and white LED lighting on laying performance in hens over 72 weeks of age. |
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| Autori: | Monteiro, N. M. P.1, Sato, D.1 denissato@alumni.usp.br, Bombem, B. D. R.1, De Moraes, J. E.2, Rodrigues, D. R.1, Porto, E. P.1, Silva, L. O.1, Duarte, E. R.3, Silva, M. A. A.1 |
| Zdroj: | South African Journal of Animal Science. 2025, Vol. 55 Issue 10, p492-503. 12p. |
| Druh dokumentu: | Article |
| Predmet: | Red light, Hens, LED lighting, Autumn, Agricultural egg production, Daylight, Food consumption |
| Author-Supplied Keywords: | egg production light colour photoperiod |
| Abstrakt: | Artificial lighting has enabled improvements in egg production, and different types of light and wavelengths have been tested to achieve better production results in the past. It has been established that red light positively affects the laying performance of hens when such a lighting programme is applied prior to sexual maturation. However, few studies have investigated the effects of light colour on the performance of laying hens during the final stages of production. This study examined the effects of supplementing natural light with white or red lighting during the autumn-winter season on the laying performance, feed intake, average egg weight, egg mass, and feed conversion per egg of laying hens, and the albumen height, yolk colour, and Haugh units of their eggs. The effects on shell thickness, shell strength, body mass, ovary weight, and oviduct weight were also assessed. A total of 7680 70-week-old Lohmann LSL laying hens housed in four California-type sheds were used in the study. Hens exposed to the white light treatment had significantly heavier ovaries; however, no significant differences between red and white lighting were found among the other evaluated variables. [ABSTRACT FROM AUTHOR] |
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| Author Affiliations: | 1Department of Agricultural Sciences, State University of Northern Paraná (UENP), Luiz Meneghel Campus, 86360-000, BR-369, s/n, Bandeirantes/Paraná State, Brazil 2São Paulo State Agency for Agribusiness Technology, Institute of Animal Science, 13380-011 Heitor Penteado Street, 56, Nova Odessa/São Paulo State, Brazil 3Department of Agricultural Sciences, Northern Paraná University (UNOPAR), 86360-000 Edelina Meneghel Rando Avenue, 151, Bandeirantes/Paraná State, Brazil |
| ISSN: | 0375-1589 |
| DOI: | 10.17159/sajas.v55i10.04 |
| Prístupové číslo: | 189225077 |
| Databáza: | Veterinary Source |
| Abstrakt: | Artificial lighting has enabled improvements in egg production, and different types of light and wavelengths have been tested to achieve better production results in the past. It has been established that red light positively affects the laying performance of hens when such a lighting programme is applied prior to sexual maturation. However, few studies have investigated the effects of light colour on the performance of laying hens during the final stages of production. This study examined the effects of supplementing natural light with white or red lighting during the autumn-winter season on the laying performance, feed intake, average egg weight, egg mass, and feed conversion per egg of laying hens, and the albumen height, yolk colour, and Haugh units of their eggs. The effects on shell thickness, shell strength, body mass, ovary weight, and oviduct weight were also assessed. A total of 7680 70-week-old Lohmann LSL laying hens housed in four California-type sheds were used in the study. Hens exposed to the white light treatment had significantly heavier ovaries; however, no significant differences between red and white lighting were found among the other evaluated variables. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 03751589 |
| DOI: | 10.17159/sajas.v55i10.04 |