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A Study of Different Sources and Wavelengths of Light on Laying Egg Characteristics in Laying Hens

산란계에 대한 점등 광원 및 파장 차이에 따른 산란 특성에 관한 연구

  • 김민지 (농촌진흥청 국립축산과학원) ;
  • 최희철 (농촌진흥청 국립축산과학원) ;
  • 서옥석 (농촌진흥청 국립축산과학원) ;
  • 채현석 (농촌진흥청 국립축산과학원) ;
  • 나재천 (농촌진흥청 국립축산과학원) ;
  • 방한태 (농촌진흥청 국립축산과학원) ;
  • 김동욱 (농촌진흥청 국립축산과학원) ;
  • 강환구 (농촌진흥청 국립축산과학원) ;
  • 박성복 (농촌진흥청 국립축산과학원)
  • Received : 2010.11.02
  • Accepted : 2010.12.07
  • Published : 2010.12.31

Abstract

The chicken eye can discriminate light color, and different light wavelengths may affect reproduction ability. This study was carried out to identify effect of monochromatic light using light emitting diode (LED) in laying hens. Chickens were exposed to white light (WL), blue light (BL), yellow light (YL), green light (GL) and red light (RL) made by using LED as well as incandescent light (IL) (control). All light sources were equalized to a light intensity of 20 lux. The results indicated that the age of first egg laying and 50 % egg laying in laying hens treated under RL is significantly younger than under other lights (P<0.05). And the ovary weight of laying hens reared under RL is significantly heavier than under other at from 16 to 20 wks (P<0.05). The largest number of eggs production was produced in a group with treated with RL by 59 wks of age compared with any other group. The egg weight of YL was greater than other treatment groups from 26 to 45 wks (P<0.05). The egg shell from hens treated with RL was the strongest and thickest at 20 wk (P<0.05). These results suggest that the egg quality of laying hens reared in different spectrum of LED can be different and RL may enhance the laying performance.

닭의 눈은 빛의 색깔을 구별할 수 있고, 빛의 다른 파장은 닭의 번식 능력에 영향을 미칠 수 있다. 이에 본 연구는 산란계에서 발광소자(LED)를 이용한 단색광이 산란계에 미치는 영향을 확인하고자 수행되었다. 닭들은 발광소자(LED)를 이용하여 제작된 백색, 청색, 황색, 청색, 적색 전구와 대조구로써 백열전구의 점등 광원에 노출되었다. 모든 점등 광원은 빛의 세기를 20 lux로 고정하였다. 시험 결과, 산란 개시 일령과 산란 50% 도달 시기는 적색 점등 시에 다른 처리군과 비교하여 빨리 일어남이 확인되었으며, 난소 중량 또한 16주령에서 20주령까지 적색 점등 시에 다른 처리군에 비해 유의적으로 무거웠다. 또한, 59주령 기준 적색 LED 점등 광원에서 사육된 산란계의 헨하우스 산란수가 다른 처리군과 비교하여 가장 높음이 확인되었다. 황색 LED 점등 시 26주에서 45주령의 산란계에서 생산된 계란 무게는 다른 처리 점등 조건에 비해 유의적으로 높았다. 적색 LED 점등 시 20주의 산란계에서 생산된 계란의 난각 강도는 다른 처리 점등 조건에 비해 높았다. 비슷하게 적색 LED 점등 시 20주의 산란계에서 생산된 20주의 산란계에서 생산된 계란의 난각 두께는 다른 처리 점등 조건에 비해 높았다. 이와 같은 결과들은 적색 LED 점등 환경에서 사육된 산란계들은 산란 능력이 향상되고, LED를 이용한 다양한 파장의 점등은 계란 품질에 영향을 미칠 수 있다는 것으로 사료된다.

Keywords

References

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Cited by

  1. Monochromatic light-emitting diode (LED) source in layers hens during the second production cycle vol.19, pp.9, 2015, https://doi.org/10.1590/1807-1929/agriambi.v19n9p877-881
  2. Effect of Combinations of Monochromatic LED Light Color on the Performance and Behavior of Laying Hens vol.51, pp.3, 2014, https://doi.org/10.2141/jpsa.0130105