There is mounting evidence that spaying/neutering at "the normal puppy age" (6 months) leads to a markedly higher incidence rate of CCL rupture. This is due to the lack of correct hormonal influence on the growth and growth rate of long bones --- which has a negative effect on proper tibial plateau angle which leads to undue strain on the CCL.
I believe that 14 months of age is the very youngest a dog should be spayed/neutered.


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