IDEAS home Printed from https://ideas.repec.org/a/igg/jaeis0/v9y2018i3p74-86.html
   My bibliography  Save this article

Implementation of CTR Dairy Model Using the Visual Basic for Application Language of Microsoft Excel

Author

Listed:
  • A. Ahmadi

    (University of California Davis, Davis, USA)

  • P. H. Robinson

    (University of California Davis, Davis, USA)

  • F. Elizondo

    (Universidad de la República, Montevideo, Uruguay)

  • P. Chilibroste

    (Universidad de la República, Montevideo, Uruguay)

Abstract

The goal of the article is to implement the CTR Dairy model using the Visual Basic for Application (VBA) language of Microsoft Excel. CTR Dairy is a dynamic simulation model for grazing lactating dairy cows that predicts milk production and profit over feeding based on ruminal digestion and absorption of nutrients under discontinuous feeding schedules. The CTR Dairy model was originally developed as a research tool using a proprietary computer simulation software called SMART that required the SMART client to run the program. As SMART software is now discontinued, and its client is no longer available, rewriting the model in the VBA language using Microsoft Excel for inputs and outputs makes the program available to a broad range of users including dairy farmers, extension advisors, dairy nutrition consultants and researchers. Dairy farmers can use the new version of the CTR Dairy program to manipulate the herbage allowance and the access time to the grazing paddock, as well as the timing of supplemental feeding, to improve the utilization of the pasture and to increase the production of the milk.

Suggested Citation

  • A. Ahmadi & P. H. Robinson & F. Elizondo & P. Chilibroste, 2018. "Implementation of CTR Dairy Model Using the Visual Basic for Application Language of Microsoft Excel," International Journal of Agricultural and Environmental Information Systems (IJAEIS), IGI Global, vol. 9(3), pages 74-86, July.
    • Handle: RePEc:igg:jaeis0:v:9:y:2018:i:3:p:74-86
    as

    Download full text from publisher

    File URL: http://services.igi-global.com/resolvedoi/resolve.aspx?doi=10.4018/IJAEIS.2018070105
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Marzia Alam & Mehreen Saleem Gul & Tariq Muneer, 2019. "Radiation View Factor for Building Applications: Comparison of Computation Environments," Energies, MDPI, vol. 12(20), pages 1-14, October.

    More about this item

    Statistics

    Access and download statistics

    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:igg:jaeis0:v:9:y:2018:i:3:p:74-86. 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: Journal Editor (email available below). General contact details of provider: https://www.igi-global.com .

    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.