David Bohnert

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Dr. Bohnert is a Ruminant Nutritionist and Extension Beef Cattle Specialist with Oregon State University stationed at the Eastern Oregon Agriculture Research Center in Burns, OR. He received his B.S. (1990) and M.S. (1994) in Animal Science from Angelo State University (San Angelo, TX), and Ph.D. (1998) in Ruminant Nutrition from the University of Kentucky. He joined the research group at the Eastern Oregon Agriculture Research Center in 1998. His current research is focused on nutritional management strategies to improve the sustainability of beef production in the Intermountain West.  In 2005 he received the Young Scientist Award from the Western Section of the American Society of Animal Science and in 2016 the Briskey Award for Faculty Excellence at Oregon State University College of Agricultural Sciences.

Content by David Bohnert

Grass Seed Straw as a Forage Source for Beef Cattle

A byproduct of grass seed production is straw (residue remaining after grass seed has been harvested). While grass seed straw is generally a low-quality forage source, the ruminant animal and its microbial population can utilize it with proper nutritional management.

By David Bohnert, Mike Mehren, Carl Hunt | Publication

Balancing Diets for Beef Cattle - Appendix 1

This Appendix is associated with the publication titled "Balancing Diets for Beef Cattle."

By David Bohnert, Reinaldo Cooke, | Publication

Balancing Diets for Beef Cattle

Nutritional management of the herd needs to be properly designed to ensure optimum cattle performance while maintaining economical viability of the production system. There are several steps that producers and field personnel need to understand and follow when designing or evaluating cattle diets, including determination of animal requirements, assessment of feed inventory, and calculations to determine the type and amount of feeds that animals have to consume.

By David Bohnert, Reinaldo Cooke, | Publication

OSU Across Breed EPD Calculator

The OSU Across-Breed EPD calculator is a Microsoft Office Excel® Macro-Enabled Worksheet. It has been formatted to run most efficiently in Excel 2016. However, an alternative version that will function using older Excel versions is available. In order for all of the features to work, macros must be enabled. The OSU Across-Breed EPD calculator can be downloaded here or contact your local OSU Extension Office. Data for the program will change yearly according to the most recent USMARC AB-EPD data. Therefore, the software program will change yearly as well. New versions will be made available through this website.

By David Bohnert, Barbi Riggs, | Publication

OSU Across Breed EPD Calculator - Instructions for Use

The OSU Across-Breed EPD Calculator is a tool to help commercial cattlemen evaluate and compare sires of different breeds using adjustment factors generated from the MARC data. The program allows producers to compare sires on a basis that is most familiar to them. For example, if the producer has historically purchased Limousin bulls, but has decided to purchase Charolais bulls, the program will allow the producer to generate EPD values for the Charolais bull that are equivalent to Limousin generated EPD values. This will allow the producer to compare his existing bull battery to the potential Charolais bulls for sale. Likewise, the program also gives the producer the option to enter EPD values a potential bull should have using EPD values of a familiar breed, in this example Limousin, basis. The program can then generate the EPD values for those traits as would be seen in the sire catalog for the Charolais bulls.

By David Bohnert, Barbi Riggs, | Publication

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