IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjs/v66y2021i11id98-2021-cjas.html
   My bibliography  Save this article

Modelling the growth of rearing cattle

Author

Listed:
  • Hanna Unterauer

    (Department of Integrative Biology and Biodiversity Research (DIBB), University of Natural Resources and Life Sciences (BOKU), Vienna, Austria)

  • Norbert Brunner

    (Department of Integrative Biology and Biodiversity Research (DIBB), University of Natural Resources and Life Sciences (BOKU), Vienna, Austria)

  • Manfred Kühleitner

Abstract

Scientific growth literature often uses the models of Brody, Gompertz, Verhulst, and von Bertalanffy. The versatile five-parameter Bertalanffy-Pütter (BP) model generalizes them. Using the least-squares method, we fitted the BP model to mass-at-age data of 161 calves, cows, bulls, and oxen of cattle breeds that are common in Austria and Southern Germany. We used three measures to assess the goodness of fit: R-squared, normalized root-mean squared error, and the Akaike information criterion together with a correction for sample size. Although the BP model improved the fit of the linear growth model considerably in terms of R-squared, the better fit did not, in general, justify the use of its additional parameters, because most of the data had a non-sigmoidal character. In terms of the Akaike criterion, we could identify only a small core of data (15%) where sigmoidal models were indispensable.

Suggested Citation

  • Hanna Unterauer & Norbert Brunner & Manfred Kühleitner, 2021. "Modelling the growth of rearing cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 66(11), pages 441-449.
    • Handle: RePEc:caa:jnlcjs:v:66:y:2021:i:11:id:98-2021-cjas
    DOI: 10.17221/98/2021-CJAS
    as

    Download full text from publisher

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/98/2021-CJAS.html
    Download Restriction: free of charge
    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/98/2021-CJAS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/98/2021-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.

    References listed on IDEAS

    as
    1. Tjørve, Kathleen M.C. & Tjørve, Even, 2017. "A proposed family of Unified models for sigmoidal growth," Ecological Modelling, Elsevier, vol. 359(C), pages 117-127.
    2. Norbert Brunner & Manfred Kühleitner & Katharina Renner-Martin, 2021. "Bertalanffy-Pütter models for avian growth," PLOS ONE, Public Library of Science, vol. 16(4), pages 1-18, April.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      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:66:y:2021:i:11:id:98-2021-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.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.