Friday, October 23, 2009

Technology Tip: Oklahoma State University – Cowculator v2.0

When it comes to making winter feeding decisions for the cow herd it is easy to get overwhelmed. The numbers can be mind numbing! When you look at prices, amounts, crude protein, nutrition requirements, days in the feeding period, cow size, desired daily gain, body condition score, etc they all start to run together and make your head hurt. Oklahoma State University, the land-grant agricultural institution in Oklahoma, has a computer based program that assists producers in summarizing the data, comparing options and making a decision. This program was recently highlighted at the Texas A&M Beef Cattle Shortcourse in a powerpoint presentation that you can view (http://animalscience.tamu.edu/ansc/BCSC/BCSC09%20Nutrition%20Management%20Section.pdf).


According to the website: “OSU Cowculator is an excel program designed to assist cattlemen in making informed decisions associated with beef cow nutrition. Animal criteria (such as cow weight, body condition, stage of production and breed), as well as the feed and forage library can be customized to each operation or to specific scenarios within an operation. Animal requirements and performance predictions are based on years of research data, including the 1996 and previous versions of the National Research Council's Nutrient Requirements of Beef Cattle. Cowculator can be used as a decision making tool for individual operations and is especially useful as a teaching tool.”

The program is free to download onto your personal computer. You will need Microsoft Excel to operate it. It is very user friendly and allows you to compare different feeding options such as range cubes versus whole cottonseed versus cottonseed meal. When using make sure prices are in-line with local prices to ensure accurate cost analysis. You can download the program and a user handbook at http://www.ansi.okstate.edu/exten/cowculator/.