Another option is electric mesh. I have been using it for my herd of Boers for 5+ years now. I have multiple fields fenced with it, and it keeps the goats IN and predators OUT. I do take it off of the step-in posts that it comes with, and install it on wood or T-posts with insulators. I "suspend" it on a strand of 17g wire woven thru the top and bottom and hand tightened, to eliminate the sagging. It works perfectly, zero maintenance aside from occasionally re-tightening the suspension wire when a deer makes it sag. I use the "shorter" mesh and top it with 2 strands of tape to increase visibility. The end product looks clean and neat.
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