A: No, there is no advantage to letting your pet have one litter. However there are plenty of advantages to having you pet spayed or neutered. These advantages include decreasing the chances of breast tumors later in life, decreasing the chance of cystic ovaries and uterine infections later in life, decreasing the desire to roam the neighborhood, helping prevent spraying and marking, and also decreases the surplus of unwanted puppies and kittens.
Flea bite hypersensitivity and flea allergic dermatitis is the most common skin disease in pets. And although the allergies usually develop when dogs are young (less than one and up to five years of age), flea allergies can begin at any age. It is the saliva from the flea is actually believed to be the cause of the allergy or sensitivity.