I have a 11 months old intact male dog (mix of GSB and local dog). He used to be very sociable since I have taken him to the dog park from very early age (3 months old). He is very well behaved and playful at home, around people and children.
However, in the last 2 months he has gotten very aggressive towards other male dogs (both intact and neutered). He would likely to pick a fight or get hot tempered very quickly and switch from wagging tail to aggressively fighting.
Now I have to let him play at the dog park at a time when no male dog is around, and if any appears, we have to leave!
I have research that neutering a dog may lower his aggression, but my opinion, I don't really support neutering as I think it is unnatural (please don't hate me it just my opinion). However, if it the best option for him to have fun and "join with the dog society", then I would still do it.
Please help me with my situation. This is my first time owning a dog and I have tried as hard as possible to training aggressive management but it doesn't seems to work. I also have tried use muzzle on him but he still pick up fights, and he got injured even more seriously since he cannot defense himself. I am also a graduates and just started working and cannot afford dog training, it is very expensive in my country.
Please help me, I would be very thankful. Sorry for my bad English. I am not from English native speaking coutries.
Thank you so much