Here is an article answering a recent question on whether there existed data on the effect of spay/neuter on “impulse aggressive” behavior in pit bull type dogs:
https://www.animals24-7.org/2018/06/29/does-castration-really-alter-male-dog-behavior/#comments
Today I must “post and run”. I will return as soon as I am able to answer any questions or comments. Thank you for any interest in these postings or information.
Norski