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Effects of supplemental phytase on nutrient digestibility and performance of sows fed diets with high or low native phytase activity

Author

Listed:
  • E.R. Grela

    (Institute of Animal Nutrition and Bromatology, University of Life Sciences of Lublin, Poland)

  • J. Matras

    (Institute of Animal Nutrition and Bromatology, University of Life Sciences of Lublin, Poland)

  • A. Czech

    (Department of Biochemistry and Toxicology, University of Life Sciences of Lublin, Poland)

Abstract

Two experiments were conducted to examine the influence of addition of microbial phytase to diets differing in native phytase content, on the performance of sows and digestibility of nutrients. Barley and wheat grains relatively poor in native phytase used in Experiment 1 mixtures were replaced by triticale and rye (rich in this enzyme) in Experiment 2 diets. There were 3 groups in each experiment. Group I (control) received basal diets enriched with dicalcium phosphate (10 g/kg), group II (negative control) was fed basal diets without any additive, and group III (negative control) was supplemented with microbial phytase (500 PU/kg). Body weights of sows were monitored at mating, before parturition, immediately after parturition and at weaning. Apparent ileal and total tract digestibility of basal nutrients, detergent fibre fractions, Ca and P of the investigated diets from particular treatments was determined. Microbial phytase (Natuphos®, BASF AG, Ludwigshaven, Germany) supplemented at 500 PU/kg in pregnancy and lactation diets based on barley and wheat resulted in smaller body weight losses during lactation and higher weight gain over the whole cycle. Synergistic effects of microbial phytase and native phytase on body weight changes of sows, feed conversion ratio during pregnancy, and apparent (ileal and total tract) digestibility of both organic matter and minerals (total and phytic phosphorus and calcium) were found out.

Suggested Citation

  • 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.
    • Handle: RePEc:caa:jnlcjs:v:56:y:2011:i:10:id:3237-cjas
    DOI: 10.17221/3237-CJAS
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    References listed on IDEAS

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    1. 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.
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