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In vitro ruminal degradability of cereal grain starch

Author

Listed:
  • O. Tománková

    (Research Institute of Animal Production, Prague-Uhříněves, Czech Republic)

  • P. Homolka

    (Research Institute of Animal Production, Prague-Uhříněves, Czech Republic)

Abstract

An in vitro method was used to determine ruminal degradability of starch (IVRDS) in a set of cereal grains. The set included 9 feed samples, including 2 samples of ground wheat, 2 samples of wheat treated with sodium hydroxide, ground barley, barley treated with sodium hydroxide, 2 samples of ground oats and ground maize. Ruminal degradability of starch was assayed by the feed fermentation for 2, 4, 6, 16 and 24 hours. A significant difference in starch degradability was found between treated and untreated ground samples after 2-hour fermentation (13.73 ± 3.12 vs. 32.77 ± 8.17; P < 0.001), 4-hour fermentation (33.44 ± 7.31 vs. 60.30 ± 16.71; P < 0.001) and 6-hour fermentation (42.63 ± 7.13 vs. 74.20 ± 6.38; P < 0.001). On the basis of the rate of ruminal degradability of starch the order of cereal grains was as follows (from the highest to the lowest value): ground oats, ground wheat, ground barley, ground maize, wheat and barley treated with sodium hydroxide.

Suggested Citation

  • O. Tománková & P. Homolka, 2004. "In vitro ruminal degradability of cereal grain starch," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 49(4), pages 151-155.
    • Handle: RePEc:caa:jnlcjs:v:49:y:2004:i:4:id:4293-cjas
    DOI: 10.17221/4293-CJAS
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    Citations

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    Cited by:

    1. F. Jančík & P. Homolka & B. Čermák & F. Lád, 2008. "Determination of indigestible neutral detergent fibre contents of grasses and its prediction from chemical composition," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(3), pages 128-135.
    2. J. Pozdíšek & K. Vaculová, 2008. "Study of wheat (Triticum aestivum L.) quality for feeding ruminants using in vitro and in vivo methods," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(6), pages 253-264.

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