**Assumptions:
1. A summary of eight dairy trials indicates that feeding Complexes:
a. Increases milk production by 3.31%.
b. Decreases days open by 16 days.
c. Decreases services/conception by
0.3 services
d. Decreases SCC by 13.7%
2. Dry matter intake increases 1kg. for every 2 kg. increase in milk
production.
3. Complexes (Zn,Cu,Mn,Co) are fed the entire lactation and dry period.