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Open Access Publications from the University of California

An evaluation of anti-coyote electric fences


We interviewed 21 sheep farmers and evaluated their electric fences to identify problems and determine efficacy of electric fences to prevent coyote (Canis latrans) predation. Modified woven wire fences and fences of 9 high-tensile smooth wires alternating charged and grounded were most effective in preventing coyote predation. The most serious problems in fence design and maintenance were a) bottom charged wire too high above ground level, b) wires spaced too far apart, and c) inadequate vegetation control.

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