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Prefermented cereals containing fungal gamma-linolenic acid and their effect on rumen metabolism in vitro

Author

Listed:
  • T. Laho

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

  • Z. Váradyová

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

  • K. Mihaliková

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

  • S. Kišidayová

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

  • Z. Adamechová

    (Department of Biochemical Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovak Republic)

  • M. Čertík

    (Department of Biochemical Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovak Republic)

  • D. Jalč

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

Abstract

The application of Thamnidium elegans fungal strain CCF 1456 (TE) for effective utilization of various agroindustrial materials creates new perspectives for animal cereal diets enriched with microbial γ-linolenic acid (GLA). Diets consisting of lucerne hay (LH) plus prefermented cereals (wheat bran/spent malt grains, WB+TE or WB+TE enriched with sunflower oil, WB+SO+TE in the first experiment and ground maize grains, GC+TE in the second experiment) were used in the artificial rumen. We examined their effect on the rumen fermentation pattern and lipid metabolism. The diet affected the results of degradability of dry matter, organic matter, neutral detergent fibre and acid detergent fibre of LH+WB diets (P < 0.05 and P < 0.01). The GLA daily output of prefermented diet substrates LH+WB+TE and LH+WB+SO+TE, or LH+GC+TE was higher compared to the non-prefermented LH+WB or LH+GC, respectively (P < 0.05 and P < 0.01). Daily outputs of trans11 oleic (TVA) of the LH+GC+TE diet were higher versus the non-prefermented LH+GC (P < 0.01). The biohydrogenation of fatty acids (C18:1 cis9 oleic, C18:2 linoleic, C18:3n-3 alpha-linolenic, C18:3n-6 GLA and total FA) of prefermented cereal diets was not influenced. Cereal diets containing microbial GLA might positively enhance GLA daily outputs in the RUSITEC effluent, but they are not effective enough to decrease the biohydrogenation of unsaturated fatty acids.

Suggested Citation

  • T. Laho & Z. Váradyová & K. Mihaliková & S. Kišidayová & Z. Adamechová & M. Čertík & D. Jalč, 2011. "Prefermented cereals containing fungal gamma-linolenic acid and their effect on rumen metabolism in vitro," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(7), pages 325-335.
    • Handle: RePEc:caa:jnlcjs:v:56:y:2011:i:7:id:1295-cjas
    DOI: 10.17221/1295-CJAS
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    References listed on IDEAS

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    1. D. Jalc & A. Potkanski & M. Szumacher-Strabel & A. Cieslak & M. Certik, 2005. "Effect of microbial oil, evening primrose oil and borage oil on rumen fermentation in vitro," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 50(11), pages 480-486.
    2. Z. Váradyová & S. Kišidayová & A. Lauková & D. Jalč, 2010. "Influence of inoculated maize silage and sunflower oil on the in vitro fermentation, ciliate population and fatty acid outputs in the rumen fluid collected from sheep," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(3), pages 105-115.
    3. D. Jalč & M. Čertík, 2005. "Effect of microbial oil, monensin and fumarate on rumen fermentation in artificial rumen," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 50(10), pages 467-472.
    4. Z. Váradyová & S. Kišidayová & P. Siroka & D. Jalč, 2007. "Fatty acid profiles of rumen fluid from sheep fed diets supplemented with various oils and effect on the rumen ciliate population," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 52(11), pages 399-406.
    5. D. Jalč & M. Čertík & K. Kundríková & P. Kubelková, 2009. "Effect of microbial oil and fish oil on rumen fermentation and metabolism of fatty acids in artificial rumen," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(5), pages 229-237.
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