You could have downloaded DairyGEM 3.2 from our software library for free. The most popular versions among the program users are 3.2, 3.1 and 3.0. The program lies within Education Tools, more precisely Science Tools. Our built-in antivirus scanned this download and rated it as 100% safe. This free program is a product of USDA-ARS.
From the developer:
The Dairy Gas Emissions Model (DairyGEM) is a tool for estimating ammonia, hydrogen sulfide, and greenhouse gas (GHG) emissions of dairy production systems as influenced by climate and farm management. A dairy production system generally represents the processes used on a given farm, but the full system may extend beyond the farm boundaries.
You may want to check out more software, such as Avantage BPM Foundation, Adding Machine or gitoolbox, which might be similar to DairyGEM.