Start with good pens, don't have your bucklings in make shift areas that they learn to get out of or worse jump. You teach them to jump or pull down poor fencing, then fix the fence and make it higher, they learn to jump it, they just learn to jump higher

Soon you have olympic athelets jumping over anything, because you trained them to do this!
Bucks are ruined by folks who do not treat them as the intact LIVESTOCK males they are from birth. They baby them, coddle them, let them play with you just like you are another goat. Then when they are 2, no longer cute and pretty, they pee all over themselves, and then they try to play with you like they did when they were small, all of a sudden they are dangerous, nasty creatures. Worse are the folks who keep these herd animals all by themselves, the only goat they ever see is you, and you hit them with sticks, shoot them with water, or shock them with prodes, all because they are showing normal goat behavior you taught them when they were young. A male goat alone is a horribly lonely guy, he craves attention, and like a battered child would rather be beaten than ignored, so if it takes him running after you in the pen to get any attention at all, it's what you taught him to do! A little over the top, yes, but that cute little bundle of fluff at 8 pounds is going to grow into a big stinking man in about 2 years, don't ruin him, teach him manners and always have 2 or 3 bucklings raised out together.
As much time as you spend on the boards finding about nutrition for your does, feed the same to your bucks. Keep their feet trimmed, clean water, and as nice as the doe stalls are the bucks do well with the same. Vaccinate, worm and give your bucks the same care as your doe, to say they are half your herd is trite, when in fact without good bucks your herd can never get better, bucks are your herd. Vicki