Here's why:
* Sperm production continues for a short period after neutering: Even though the testicles are removed, the body continues to produce sperm for a few weeks. This is because there is already a supply of sperm stored in the epididymis, a tube that connects to the testicles.
* The exact time varies: The amount of time it takes for sperm to be eliminated varies depending on the individual dog and the age at which he was neutered. It can range from a few days to several weeks.
* Reduced fertility: However, the sperm count will rapidly decline, and the sperm will be less viable, making it highly unlikely for the dog to impregnate a female.
It's crucial to consult with your veterinarian. They can advise you on the specifics of your dog's situation, including the potential for fertility after neutering and how long you should wait before allowing your dog to interact with female dogs.
For safe practice: It's always recommended to consider your dog neutered after the procedure, regardless of the potential for remaining sperm.