IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjs/v57y2012i6id5961-cjas.html
   My bibliography  Save this article

Fresh or frozen rumen contents from slaughtered cattle to estimatein vitro degradation of two contrasting feeds

Author

Listed:
  • A.S. Chaudhry

    (School of Agriculture, Food and Rural Development, Newcastle University, Newcastle, UK)

  • R.A.I. Mohamed

    (School of Agriculture, Food and Rural Development, Newcastle University, Newcastle, UK)

Abstract

The present factorial experiment tested the thawed rumen fluid from frozen rumen contents against fresh rumen fluid from the same slaughtered cattle to estimate in vitro degradation of rapeseed meal (RSM) and grass nuts (GN) as two contrasting feeds at various times. Fresh rumen fluid showed higher (P < 0.05) in vitro dry matter (DMD) and crude protein (CPD) degradation than the thawed rumen fluid at most incubation times. Significant differences (P < 0.05) were found between fresh and differently prepared thawed rumen fluids for mean degradation constants (a, b, c) and effective degradability (P0.02) of feeds. While the thawed rumen fluids had lower (P < 0.01) degradation than the fresh rumen fluid, their degradation values correlated very well (R2 ≥ 0.95) with those for the fresh rumen fluid. It appeared that the thawed rumen fluid can be used to predict in vitro degradation of the selected feeds when frequent access to slaughtered or fistulated animals is restricted. Nevertheless it would be vital to improve the activity of thawed rumen fluid prior to testing its suitability for numerous feeds before recommending its routine use to estimate degradation of ruminant feeds.

Suggested Citation

  • A.S. Chaudhry & R.A.I. Mohamed, 2012. "Fresh or frozen rumen contents from slaughtered cattle to estimatein vitro degradation of two contrasting feeds," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(6), pages 265-273.
    • Handle: RePEc:caa:jnlcjs:v:57:y:2012:i:6:id:5961-cjas
    DOI: 10.17221/5961-CJAS
    as

    Download full text from publisher

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/5961-CJAS.html
    Download Restriction: free of charge
    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/5961-CJAS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/5961-CJAS?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlcjs:v:57:y:2012:i:6:id:5961-cjas. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.