[QUOTE=Simkie;8301746]
This is the article that I’ve seen. I think it’s pretty well researched and covers both sides, with a hefty reference list.
http://www.naiaonline.org/pdfs/LongTermHealthEffectsOfSpayNeuterInDogs.pdf
I have one 11 yo girl spayed after her first or second heat, and one 3 yo girl that’s still intact. I do prefer to wait and just don’t find intact girls to be an issue.
CATS, on the other hand, get fixed WELL before puberty. There’s nothing worse than a cat in heat! :lol:[/QUOTE]
That article doesn’t touch on the management of neutered/intact dogs, that does make a difference, huge one in pet homes, where females do get pregnant and male dogs want to roam and fight and neutering avoids those problems.