Vet Blog

09/22/09

Can Freshly Neutered Males Still Impregnate Females? And Why do Young Cats Suddenly Perish?
Dr. Eric Barchas, DVM

catsLet’s answer two more of Mrs. Kitty’s questions.

Is it true that you should keep a freshly-neutered male indoors for a week because he can still impregnate a female?

As I have mentioned twice in the last week, I would prefer that all cats were kept inside at all times. However, the answer to your question is yes. After the testicles are removed, it takes several days for all of the residual sperm to clear out of the pipes. During this time, a freshly-neutered male cat can still impregnate females.

It can take more than a week for the male’s testosterone levels to drop. During this time he will remain at increased risk of fighting, spraying, and engaging in other undesirable (from our point of view) behaviors.

What is the most common cause of sudden death in visually healthy young (2-5 years old) cats?

In outdoor cats, vehicular trauma is by far the most common cause of sudden death regardless of age.

But I’m guessing that you aren’t talking about the obvious.

In my experience the most common cause of sudden (and unavoidable) death in young cats is heart disease. Cats are prone to a syndrome called cardiomyopathy. This syndrome develops slowly but initially may not cause clinical symptoms. The first symptom of the syndrome may be sudden death.

Go to my website for more information about cardiomyopathy:

http://drbarchas.com/feline_heart_disease

Tomorrow: it’s time to talk about a dog.

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10/25/08

Can Hormone Therapy Prevent Mating in Dogs?
Dr. Eric Barchas, DVM

800px-yellow_lab.JPGMy female yellow Lab (about 17 months) is in heat
right now (second time). My male yellow Lab
(about seven years) is going nuts and not eating. Is
there any kind of hormone medication or something
to give him?

Jessica
Bozeman MT

I confess that I am hesitant to delve into this matter. It will lead to a discussion on spaying and neutering. The topic of surgical sterilization remains perpetually controversial.

However, Jessica, you have asked a good question. It would be very convenient if there were some sort of hormone, medicine or treatment that could prevent dogs and cats from mating with or responding to the opposite sex.

But there isn’t. Male dogs respond strongly to in-heat female dogs. At the current time there is only one way to prevent this response: surgical sterilization (spaying and neutering).

Intact dogs and cats are incredibly good at organizing trysts when they are in the mood. These encounters almost always lead to pregnancy. If your dog becomes pregnant, it will be your responsibility to find homes for the puppies.

In your situation, surgical sterilization is the only way to prevent an agitated male and a potentially pregnant female.

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