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Can a neutered male dog still get a female dog pregnant? Print E-mail
Tuesday, 27 October 2009 14:07

Take your time; the answer may surprise you.

We get a lot of requests for information from people who read Critter Chatter and think that we actually know what we are talking about. Fortunately we have access to people who do know things so we can usually answer the question. A while back we got an e-mail from someone wanting to know if her male dog could have gotten her neighbor’s female dog pregnant, since he had been neutered two weeks earlier. I told her I was sure her dog was not the father, but just to be sure I asked a vet.

It seems I was wrong; the dog could be the father.

So here is what happens. The testicles produce the sperm cells, which then travel to the prostate, where they mix with the seminal fluid and wait for the big event. Sperm can live for up to a month in the prostate, and as older ones die off new ones are constantly replacing them. Removing the testicles stops the production of new sperm cells, but those in the prostate are capable of impregnating a female if given the chance. In addition, the male dog has plenty of testosterone in his body and will still have the urge as well as the ability to mate. Over time the testosterone level will fall off and he will lose much of that urge. But for at least the first month after surgery a male dog should be kept away from any possible female contact.

 
 
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