There's a study that actually recommends NOT neutering males at all.
Quote:
The traditional spay/neuter age of six months as well as the modern practice of pediatric spay/neuter appear
to predispose dogs to health risks that could otherwise be avoided by waiting until the dog is physically
mature, or perhaps in the case of many male dogs, foregoing it altogether unless medically necessary. |
Link below;
http://www.naiaonline.org/pdfs/LongT...uterInDogs.pdf