Overseer automatically recognises which dairy system type a farm analysis represents.
To do this the software calculates the proportion of imported feed as a proportion of total ME for the dairy herd.
The percentage is then compared to those provided by DairyNZ as part of the dairy farm system definitions.
These results are purely indicative.
DairyNZ Dairy Systems:
System 1 - All grass self-contained, 100% home-grown feed with all adult stock on the dairy platform
No feed is imported. No supplement is fed to the herd except supplement harvested off the effective milking area and dry cows are not grazed off the effective milking area.
System 2 - 90-99% of total feed is home-grown feed
1-10% of feed is imported either as supplement or grazing off for wintering dry cows.
System 3 - 80-89% of total feed is home-grown feed
11-20% of total feed is imported to extend lactation (typically autumn feed) and for wintering dry cows.
System 4 - 70-79% of total feed is home-grown feed
Approx 21-30% of feed imported and used at both ends of lactation and for wintering dry cows.
System 5 - 50-69% of total feed is home-grown feed
More than 31% of feed imported and used throughout lactation. Feed imported could be greater than 50%