Neutering the male crew maybe of benefits to them.
I found these in an article for pets.
It eliminates the possibility of testicular tumors and greatly reduces the chance of prostate problems. Neutering decreases the incidence of perianal tumors and hernias, which are commonly observed in older, unaltered males.
Neutered males are less likely to try to escape a yard to find a female in season. This reduces the likelihood of them being hit by cars, getting into fights or lost. (Neutering is no substitute for a securely fenced yard, however).
Males neutered early in life tend to be less aggressive and less distracted. Neutered males are less likely to scent mark (real problem when they decide to mark inside the house). A spayed female also does not hormonally based swings and will be more focused on you as well. A female with a litter can become very aggressive, even to family members. Spaying also makes your female a better companion. However, altering a pet is NOT a substitute or a cure all for behavioral issues. It may only affect those hormonally related.
Sorry, more leisure reading here.
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