Rotational grazing requires using fences – permanent, temporary, or a combination – to keep cattle where the grazier wants them to harvest forage.

In continuous grazing, a single pasture is grazed 100% of the time with no rest period.

A single fence dividing that pasture into two increases the rest period from zero to 50%, and reduces the grazing period for both pastures to 50%.

Each additional paddock in the grazing system further increases the rest period and reduces the grazing period. This figure illustrates that pattern.

Fencing system
Source: Lemus, R. 2008. Developing a Grazing System. Forage News. Mississippi State University Extension Service. https://www.oac.msstate.edu/newsletters/forage-news/2008/developing-grazing-system

Electric fencing is a lower-cost option for subdividing larger, permanently fenced pastures. It also allows more flexibility – paddock sizes can be adjusted to the amount of available forage, the number of cattle, and the desired length of the grazing period.

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