Feed Report Calculations
Commonly used equations for generating feed and forage related calculations are provided below. The information provided in the spreadsheets has not been verified and the accuracy of any of the calculations is not guaranteed. The user takes all responsibility for the use and interpretation of this information.
Equations for estimating energy from various systems including New York and Pennsylvania
- Estimates of Energy Availability, NFTA (estimates of energy availability.mht)
OARDC Summative Energy Equation of Weiss
- OARDC TDN and NEL Spreadsheet
- "OARDC Summative Energy Equation"
NRC 2001 Energy Calucations
- NRC 2001 Energy Calculation Spreadsheet
- "Energy in the 2001 Dairy NRC: Understanding the System", Jim Linn, University of MN
Relative Feed Value (RFV) Calculations
- RFV Calculation Spreadsheet
- "Relative Feed Value Index"
- "Forage Quality Testing and Markets: Where are we going?", Dan Putnam
Relative Forage Quality (RFQ) Calculations
- RFQ Calculation Spreadsheet for Legumes and Mixed Hay-crop
- RFQ Calculation Spreadsheet for Grass Hay-crop
- "RFQ", Dan Undersander, University of Wisconsin
- "RFV vs RFQ – CVAS Perspective", R. Ward and
M. B. de Ondarza
Van Amburgh NDF Digestibility Rate Calculations
- Van Amburgh Rate Spreadsheet (NDF rate calculation spreadsheet…xls)
- "Corn Silage Neutral Detergent Fiber – Refining a Mathematical Approach for Invitro Rates of Digestion", M. E. Van Amburgh, P. J. Van Soest
Milk 2006 Calculations
- Milk 2006 Spreadsheet
- "Corn Silage Evaluation: Milk2000 Challenges and Opportunities with Milk2006", Randy Shaver, University of Wisconsin
Protein Calculations
DCAD Calculations
- DCAD Balance Spreadsheet
- "Paying Attention to Dietary Cation-Anion Balance Can Mean More Milk and Fewer Metabolic Problems", Charles C. Stallings
Resources
