Stock density

Cold temperate steppe: 400 yearlings on 35 acres (14 ha) for 2 days. Once long recovery periods create adequate forage, use high stock densities and short grazing periods to achieve even forage utilization and well-distributed animal impact.
 

Mild temperate steppe: 400 dry cows on 250 acres (100 ha) for 3 days. As with cold steppe, use long recovery periods followed by short grazing periods at high stock densities to produce even forage utilization and well-distributed animal impact..
 

High rainfall tropical savanna: 300 dry cows on 1/4 acre (1/10 ha) for 30 minutes provide very high animal impact -- essential in these high-productivity areas to get standing growth grazed down or trampled before the next growing season. In my experience it's nearly impossible to impact this sort of country too much.