as noted in my post, it does not work with ALL dogs. Nothing works with ALL dogs. Obviously. But it works with some, and that is more than enough.
Would you say that chemotherapy does not work, period, just because some % of people don’t survive it? Or would you say it has a significant impact on cancer, but is not “one-fix-cure-all”?
How about the pill? Would you say it absolutely does not work ever, just because some % of women still get pregnant?
No, you wouldn’t. I don’t see how this study is any different, except it is supporting something you feel is wrong, so you’re trying to poke holes in it. The fact of the matter is the study revealed that neutering curbs and reduces aggression in dogs. All dogs? No. Most dogs? Yes.
Neutering certainly reduces aggression in many dogs, as evidenced in the study, there was a noted and remarkable decrease in intermale aggression in more than half the subjects– that is really saying something.
It again, comes down to management and knowledge of the handler – a bad owner will make a bad dog, period. It doesn’t help when that bad dog has a pair of cojones and is hyper-aggro because of it.
There’s a reason people started the practice of neutering animals and is has a lot to do with mitigating and limiting unwanted aggressive behavior.
Neilson, Eckstein, and Hart, (1997) found that approximately 25% of adult dogs that were aggressive toward humans or other dogs in the household can be expected to have a 50 to 90% level of improvement after gonadectomy.
You said “little to no change”. I think you need to re-read – 50-90% change is more than half to almost all not “little to no change”.
This is a study for neutering adult dogs only and does not include training, or neutering at a juvenile age pre-sexual development. If you included training, or if you included neutering at an earlier age (before secondary sexual characteristics were developed) you would probably see tremendous improvement. But again, it goes back to the “bad owner, bad dog” cycle - dog isn’t going to win, period, if the hands that raise it are bad.