Welcome to Cornell Net Carbohydrate and Protein System

Version 6.5 is coming on March 15, 2015! Supporting documents and training materials will be forthcoming at that time. To stay up-to-date on model and program changes, join our list serve by using these instructions.

The Cornell Net Carbohydrate and Protein System (CNCPS) was developed to predict requirements, feed utilization, animal performance and nutrient excretion for dairy and beef cattle using accumulated knowledge about feed composition, digestion, and metabolism in supplying nutrients to meet requirements.

The CNCPS V6.1 is now available for download. This is the released version of the software.  This version has been in development for several years and has been tested and is currently implemented in several commercially available software platforms around the world.

Given the evolving nature of the model, we anticipate some updates over the next year or two within the current structure that will include updated feed amino acid profiles and characterizations in the library and an updated growth model for dairy replacements that includes the calf with the capacity to formulate starting at birth. There will also be further updates to lab procedures over the next year that will be reflected in the model. A more extensive discussion will follow as the model is finalized. At this time we expect that updates will be included in the current price. For more information or to join our list serve, visit the Program Updates page.

Per our current development approach, all updates will be incorporated into the commercial versions of the CNCPS.

If you have problems installing this version, please contact us at cncpscattle@cornell.edu. **Please be sure to include the license key or activation code for the installation you are inquiring about.  This will help us better serve you. **

If you have questions regarding diets or ration formulation, please contact Larry Chase (lec7@cornell.edu), Tom Overton (tro2@cornell.edu) or Mike Van Amburgh (mev1@cornell.edu).