Welcome to Cornell Net Carbohydrate and Protein System
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.
This version will work best on computers running Windows 7 and must have Microsoft .NET Framework Version 4.
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.
The feed library has been re-edited and errors corrected along with updated rates for the soluble protein pools to compliment the change in characterization of the soluble protein fractions. The model no longer uses non-protein nitrogen as a feed characterization. This has been replaced with ammonia, a component of many feeds that is more readily measurable and a value that is almost routinely provided from commercial feed laboratories.
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. Further, there will 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.
Per our current development approach, all updates will be incorporated into the commercial versions of the CNCPS – please see the page of license holders.
If you have problems installing this version or if you have any user questions or comments, please email cncpscattle@cornell.edu or one of the individuals listed to the right. This version will work best on computers running Windows 7 and must have Microsoft .NET Framework Version 4. We have included a link to that update to download the software. It is a large file. If you have questions about implementation or biology, please contact us.