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Egg yolk colour and retinol concentration of eggs from laying hens fed diets containing carrot and beetroot meal

Author

Listed:
  • Laura Aline Zanelatto de Souza

    (Faculty of Agronomy and Animal Science, Federal University of Mato Grosso, Cuiabá, Brazil)

  • Heder José D'Avila Lima

    (Faculty of Agronomy and Animal Science, Federal University of Mato Grosso, Cuiabá, Brazil)

  • Renata Aparecida Martins

    (College of Veterinary Medicine and Animal Science, Sao Paulo State University, Botucatu, Brazil)

  • Andrey Sávio de Almeida Assunção

    (College of Veterinary Medicine and Animal Science, Sao Paulo State University, Botucatu, Brazil)

  • Donaldo Antônio Nunes Junior

    (Faculty of Agronomy and Animal Science, Federal University of Mato Grosso, Cuiabá, Brazil)

  • Willian Ferreira Silva

    (Faculty of Agronomy and Animal Science, Federal University of Mato Grosso, Cuiabá, Brazil)

  • Felipe Gomes da Silva

    (Faculty of Agronomy and Animal Science, Federal University of Mato Grosso, Cuiabá, Brazil)

Abstract

Compounds such as pigments, antioxidants, and pro-vitamins A are found in carrots and beetroots and could increase the nutritional value of eggs when added to diets for laying hens. This research evaluated retinol concentrations and egg yolk colour with addition of freeze-dried carrot (Daucus carota L.) and beetroot (Beta vulgaris L.) meal in the diets of 240 Hisex Brown laying hens. The hens were distributed in a completely randomized design in five groups according to five experimental diets: (1) maize and soybean meal; (2) sorghum and soybean meal; (3) sorghum and soybean meal plus 0.8% of freeze-dried carrot meal; (4) sorghum and soybean meal plus 0.8% of freeze-dried beetroot meal; (5) sorghum and soybean meal plus 0.4% of freeze-dried carrot meal and 0.4% freeze-dried beetroot meal. The diet containing maize and soybean meal resulted in a more intense egg yolk colour and higher retinol levels in comparison to other diets (P < 0.05). However, carrot meal increased egg yolk colour and beetroot meal increased egg yolk retinol concentration in comparison to sorghum and soybean meal diets (P < 0.05). The inclusion of 0.8% of the carrot and beetroot meal in the diet is not enough to reach the intensity of yolk colour and yolk retinol concentration obtained through the diet containing maize, however, it increases retinol level and yolk colour in comparison to the diet containing sorghum without carrot and beetroot meal.

Suggested Citation

  • Laura Aline Zanelatto de Souza & Heder José D'Avila Lima & Renata Aparecida Martins & Andrey Sávio de Almeida Assunção & Donaldo Antônio Nunes Junior & Willian Ferreira Silva & Felipe Gomes da Silva, 2019. "Egg yolk colour and retinol concentration of eggs from laying hens fed diets containing carrot and beetroot meal," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 64(9), pages 395-403.
  • Handle: RePEc:caa:jnlcjs:v:64:y:2019:i:9:id:54-2019-cjas
    DOI: 10.17221/54/2019-CJAS
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    References listed on IDEAS

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    1. M. Ketta & E. Tůmová, 2016. "Eggshell structure, measurements, and quality-affecting factors in laying hens: a review," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 61(7), pages 299-309.
    2. 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. Mohamed Ketta & Eva Tumova & Darina Chodova, 2019. "Response of three laying hen genotypes to two feed calcium levels," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 64(12), pages 504-510.

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