The effect of light wavelength on the production and quality of eggs of the domestic hen

Pyrzak, Roman; Snapir, N.; Goodman, Gordon T.; Perek, M.

doi:10.1016/0093-691x(87)90045-8

Cited by 41 publications

(37 citation statements)

References 22 publications

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“…For example, the greatest number of eggs was produced in a group treated with red light, and eggs laid under blue or green lights were consistently heavier than those laid under red light. The eggshell strength in green light was significantly higher than that in other lights (Pyrzak et al 1987). In contrast, the reports of Woodard et al (1969) for quails and Rozenboim et al (1998) for chickens suggested that egg weight was not affected by light colour.…”

Section: Introductioncontrasting

confidence: 43%

“…These results correspond with those of Pyrzak and Siopes (1986) who did not observe any effect of light colour on egg production. However, Pyrzak et al (1987) concluded that the significantly higher hen-day production was observed in layers kept in red light and the lowest hen-day production was observed in layers kept in blue light colour. The significantly highest hen-day production was observed in laying hens kept in red light (Min et al 2012) and white light (Borille et al 2013).…”

Section: Resultsmentioning

confidence: 94%

“…However, Pyrzak and Siopes (1986) reported that turkey hens kept in red light produced heavier eggs than those on other light treatments. Likewise, Pyrzak et al (1987) reported that eggs laid under blue light were consistently larger than those produced under red light. Er et al (2007) observed that egg weight was lower in red light compared to blue and incandescent light.…”

Section: Resultsmentioning

confidence: 99%

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Effect of light colour on egg production and egg contamination

Svobodová¹,

Tůmová²,

Popelářová³

et al. 2015

CZECH J ANIM SCI

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ABSTRACT:The objective of this study was to compare the performance of laying hens, quality of air in poultry house, and microbial contamination of eggshell in laying hens kept under blue, green, red, and yellow light colour in enriched cages. The daily photoperiod consisted of 15 h light, light intensity of 10 lx at bird head level. The laying performance characteristics (hen-day egg production, mortality, and egg weight) were not affected by light colour. Similarly, microbial contamination of the air was not significantly different related to the light colour. There were significant interactions in eggshell contamination between the position of the cage floor and light colour in Escherichia coli (P ≤ 0.042) and Enterococcus (P ≤ 0.019). The highest number of Escherichia coli was detected in eggs from hens housed on the middle floor given yellow light (6.06 log colony forming units (cfu)/eggshell) and the lowest values (3.30 log cfu/eggshell) on the upper floor also under yellow light colour. Similar results were observed in Enterococcus, where the highest contamination was on the middle floor under yellow light colour (5.26 log cfu/eggshell), while the lowest contamination (2.45 log cfu/eggshell) was found on the upper floor under blue colour. The results of our study indicate that the light colour has a minor effect on microbial contamination but the significant influence was in the floor position. The highest microbial egg contamination was found on eggs from the middle floor.

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Section: Introductioncontrasting

confidence: 43%

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of light colour on egg production and egg contamination

Svobodová¹,

Tůmová²,

Popelářová³

et al. 2015

CZECH J ANIM SCI

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“…(Key words : laying hen, light, wavelength, light emitting diode (LED), egg) † To whom correspondence should be addressed : mjkim00@korea.kr (Woodard et al, 1969;Pyrzak et al, 1987;Rozenboim et al, 1998). 예를 들면, 적색 환경에서 사육된 산란계에서 높은 산란능력을 보이며, 적색 환경보다 는 청색과 녹색의 환경에서 사육된 산란계들이 낳은 난중이 더 높음을 확인할 수 있었다 (Pyrzak et al, 1987 …”

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“…예를 들면, 적색 환경에서 사육된 산란계에서 높은 산란능력을 보이며, 적색 환경보다 는 청색과 녹색의 환경에서 사육된 산란계들이 낳은 난중이 더 높음을 확인할 수 있었다 (Pyrzak et al, 1987 …”

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

Kim¹,

Choi²,

Suh³

et al. 2010

Korean Journal of Poultry Science

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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.(Key words : laying hen, light, wavelength, light emitting diode (LED), egg) † To whom correspondence should be addressed : mjkim00@korea.kr (Woodard et al., 1969;Pyrzak et al., 1987;Rozenboim et al., 1998). 예를 들면, 적색 환경에서 사육된 산란계에서 높은 산란능력을 보이며, 적색 환경보다 는 청색과 녹색의 환경에서 사육된 산란계들이 낳은 난중이 더 높음을 확인할 수 있었다 (Pyrzak et al., 1987

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