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Effect of microbial phytase and diet fermentation on ileal and total tract digestibility of nutrients and energy in growing pigs

Author

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  • S. Nitrayová

    (Slovak Agricultural Research Centre, Research Institute of Animal Production, Nitra, Slovak Republic)

  • P. Patráš

    (Slovak Agricultural Research Centre, Research Institute of Animal Production, Nitra, Slovak Republic)

  • M. Brestenský

    (Slovak Agricultural Research Centre, Research Institute of Animal Production, Nitra, Slovak Republic)

  • J. Zelenka

    (Mendel University of Agriculture and Forestry, Brno, Czech Republic)

  • J. Brož

    (DSM Nutritional Products, Animal Nutrition and Health R & D, Basel, Switzerland)

  • J. Heger

    (Slovak Agricultural Research Centre, Research Institute of Animal Production, Nitra, Slovak Republic)

Abstract

A digestibility experiment using six ileally cannulated growing gilts (initial BW 31.6 kg) was carried out to study the effect of microbial phytase and diet form on apparent ileal and total tract digestibilities of dry matter (DM), nitrogen (N), phosphorus (P), calcium (Ca) and energy and on apparent ileal digestibility of amino acids. The basal P-deficient diet was fed either dry or mixed with water (feed:water ratio 1:2.5) and fermented in a laboratory setup. The enzyme was added to the dry diet at four levels (0, 1 000, 1 500 and 3 000 U/kg) and to the liquid fermented diet at two levels (0 and 1 000 U/kg) using a 6 × 6 Latin square design. The supplementation of microbial phytase to the basal diets significantly (P < 0.05) improved ileal and total tract digestibility of P and tended to improve the digestibility of Ca. Phytase supplementation at 3 000 U/kg to the dry diet improved ileal and total tract P digestibility by approximately 30 and 60%, respectively. A similar effect was found in the liquid fermented diet supplemented with phytase at 1 000 U/kg. As a result of improved P digestibility, faecal P excretion was reduced by 20-40%. There was no significant effect of phytase addition or diet fermentation on the digestibility of DM, N, energy or amino acids. The response in amino acid digestibility to phytase calculated with acid insoluble ash as a marker was slightly higher than that calculated with Cr2O3.

Suggested Citation

  • S. Nitrayová & P. Patráš & M. Brestenský & J. Zelenka & J. Brož & J. Heger, 2009. "Effect of microbial phytase and diet fermentation on ileal and total tract digestibility of nutrients and energy in growing pigs," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(4), pages 163-174.
    • Handle: RePEc:caa:jnlcjs:v:54:y:2009:i:4:id:1743-cjas
    DOI: 10.17221/1743-CJAS
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    References listed on IDEAS

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    1. P. Patráš & S. Nitrayová & A. Sommer & J. Heger, 2006. "Effect of microbial phytase on apparent digestibility and retention of phosphorus and nitrogen in growing pigs," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 51(10), pages 437-443.
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    Cited by:

    1. E.R. Grela & J. Matras & A. Czech, 2011. "Effects of supplemental phytase on nutrient digestibility and performance of sows fed diets with high or low native phytase activity," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(10), pages 443-450.
    2. L. Kolář & J. Frelich & J. Brouček & S. Kužel & J. Borová-Batt & J. Peterka & M. Šlachta & K. Volfová & J. Pezlarová & J. Hřebečková & V. Čechová, 2010. "Anaerobic degradability of organic matter of cattle faeces and a possibility of its utilization," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(12), pages 538-547.

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