With six dogs, you have a dog pack.
Furthermore, from the sounds of it, at least two of the dogs are intact, meaning they're not spayed or neutered.
In addition, sounds like you "had" to chain one out, which tells me there's been a problem for a long time.
Whenever I see a dog chained, I know someone decided it was easier to chain them up than take care of the real problem.
Dog pack --- breeding --- not neutering or spaying --- chaining out: hate to say it, but this sounds like the problems have been brewing for a long time, and you have simply created the perfect recipe for aggressive behavior.
Furthermore, from the sounds of it, at least two of the dogs are intact, meaning they're not spayed or neutered.
In addition, sounds like you "had" to chain one out, which tells me there's been a problem for a long time.
Whenever I see a dog chained, I know someone decided it was easier to chain them up than take care of the real problem.
Dog pack --- breeding --- not neutering or spaying --- chaining out: hate to say it, but this sounds like the problems have been brewing for a long time, and you have simply created the perfect recipe for aggressive behavior.