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Laying Hens Biochar Diet Supplementation—Effect on Performance, Excreta N Content, NH 3 and VOCs Emissions, Egg Traits and Egg Consumers Acceptance

Author

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  • Kajetan Kalus

    (Department of Environment Hygiene and Animal Welfare, Wroclaw University of Environmental and Life Sciences, 51-630 Wrocław, Poland)

  • Damian Konkol

    (Department of Environment Hygiene and Animal Welfare, Wroclaw University of Environmental and Life Sciences, 51-630 Wrocław, Poland)

  • Mariusz Korczyński

    (Department of Environment Hygiene and Animal Welfare, Wroclaw University of Environmental and Life Sciences, 51-630 Wrocław, Poland)

  • Jacek A. Koziel

    (Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA)

  • Sebastian Opaliński

    (Department of Environment Hygiene and Animal Welfare, Wroclaw University of Environmental and Life Sciences, 51-630 Wrocław, Poland)

Abstract

Sustainable solutions for intensive poultry production can help farmers, rural communities, consumers, and regulatory agencies. This study assessed supplementation of laying hens diet with beechwood biochar (BC, 1~2%) and BC–aluminosilicates–glycerin mixture (BCM, 1.5~3%) to lower the environmental impact while maintaining egg quality. The effect on feed intake, laying performance, egg quality, the sensory quality of hardboiled eggs, ammonia (NH 3 ) and volatile organic compound (VOC) emissions from excreta, and the excreta composition, were evaluated. A total of 90 hens were distributed into 30 cages and divided into five groups ( n =6 replications). BC addition increased daily feed intake, while 1.5% BCM addition reduced it. The influence on egg parameters was positive, with a 6% increase in laying performance, up to 10% and 6% increase in shell resistance to crushing and shell thickness, respectively. The sensory analysis demonstrated no significant differences between all treatments. Excreta total N content was numerically lower due to the treatments (by 4~20%); its pH increased (not significantly), while no effect on ammoniacal N and dry matter content was observed. Most of the investigated treatments had a numerically positive (not statistically significant) effect on NH 3 reduction. The reduction of VOC emissions was ambiguous and not statistically significant.

Suggested Citation

  • Kajetan Kalus & Damian Konkol & Mariusz Korczyński & Jacek A. Koziel & Sebastian Opaliński, 2020. "Laying Hens Biochar Diet Supplementation—Effect on Performance, Excreta N Content, NH 3 and VOCs Emissions, Egg Traits and Egg Consumers Acceptance," Agriculture, MDPI, vol. 10(6), pages 1-15, June.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:6:p:237-:d:373798
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    References listed on IDEAS

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    1. Devin L. Maurer & Jacek A. Koziel & Kajetan Kalus & Daniel S. Andersen & Sebastian Opalinski, 2017. "Pilot-Scale Testing of Non-Activated Biochar for Swine Manure Treatment and Mitigation of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (VOCs), and Greenhouse Gas Emissions," Sustainability, MDPI, vol. 9(6), pages 1-17, June.
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