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Effect of light colour on egg production and egg contamination

Author

Listed:
  • J. Svobodová

    (Department of Animal Husbandry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • E. Tůmová

    (Department of Animal Husbandry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • E. Popelářová

    (Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • D. Chodová

    (Department of Animal Husbandry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

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.

Suggested Citation

  • J. Svobodová & E. Tůmová & E. Popelářová & D. Chodová, 2015. "Effect of light colour on egg production and egg contamination," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 60(12), pages 550-556.
    • Handle: RePEc:caa:jnlcjs:v:60:y:2015:i:12:id:8597-cjas
    DOI: 10.17221/8597-CJAS
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    References listed on IDEAS

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    1. M. Englmaierová & M. Skřivan & I. Bubancová, 2013. "A comparison of lutein, spray-dried Chlorella, and synthetic carotenoids effects on yolk colour, oxidative stability, and reproductive performance of laying hens," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 58(9), pages 412-419.
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    Cited by:

    1. Jana Vlčková & Eva Tůmová & Mohamed Ketta & Michaela Englmaierová & Darina Chodová, 2018. "Effect of housing system and age of laying hens on eggshell quality, microbial contamination, and penetration of microorganisms into eggs," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 63(2), pages 51-60.

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