Bulls and rams are harder to contain during the breeding season. Taller fences with closer wire spacing may be needed to contain them then. If possible, keep distinct breeding groups out of sight and hearing from each other. One should never depend on anything less than a physical barrier fence to contain stallions. However, electrified rope can be placed inside physical barrier fencing to keep horses from rubbing on fences or chewing on wooden fencing.
Hungry animals are more apt to challenge a fence than well-fed ones.
The solution is to arrange for more feed, not build a fortress fence. Animals deprived of water will breach most any fence in short order. A good supply of easily accessible water is essential regardless of fence design. Allow plenty of space between water tanks and fences. If the whole herd drinks at the same time, there s often some scuffling and butting around the tank, and animals might be pushed through the fence.