as my other post says i have 3 dogs my eldest male is the problem he is attacking my other male whitch we have had for a year now this problem started in the last month or so since they became outside dogs. would neutering really calm him i have heard it go both ways yes and no. has neutering helped other dogs out there to become less aggressive? i do have them seperated at this point but they have always been friends and i really dont want to keep them apart.
Yes, neutering does help. The older your dog gets, the more he is going to get agreesive because the testosterone level gets higher. Not only does it help with temperment, but also helps healthwise, and also from him always wanting to have that "roaming" instinct and cause unwanted pregnancies.