A new South Dakota State University publication explains the difference between relative feed value (RFV) and relative forage quality (RFQ), and the indexes used to assess forage quality.

The more widely used RFV index assesses quality and compares forage varieties, helping hay buyers and sellers price forages. The RFQ index, introduced about three years ago, takes into account the differences in digestibility of the forage’s fiber fraction and can be used to more accurately predict animal needs and performance.

The three-page publication, Understanding Relative Feed Value and Relative Forage Quality, is authored by Peter Jeranyama, SDSU extension forage specialist, and Alvaro Garcia, SDSU extension dairy specialist.

To view the publication, visit http://dairysci.sdstate.edu/NewPublications.htm, then scroll down and click on its title.