How soon after castration does the male become infertile? What is the chance of mounting and mating bitches after castration as some dogs do?

Any advice appreciated

Once a male is casterated his testicales are removed so their is no chance of them getting any bitch pregnant, so no longer are they fertile. A male may still mount, most dogs mount others for dominance, play or well if a bitch is in heat. My altered males would still mount my bitch when she was in heat, they also mount my other one who is spayed, and now she is spayed and they still mount her. A dog after being altered can still breed a bitch but will not get her pregnant will just have fun trying :D .

ttfn :)

Sorry but i have always been told (by vets) THAT SPERM STAYS IN DOG FOR 6 WEEKS so need to be very careful not to let males near in season females.

Aah, that is what was curious about. My neighbours dog was castrated two weeks ago and my bitch is in season. My neighbour insists he can still get her pregnant and he would be only too willing to mount her! I understand that removal of the testicles will mean no more sperm can be produced but there are still plenty of places for residual sperm to be stored, aren't there?

Of course I am playing better safe than sorry but was just interested in your opinions or experience!

Wow I learned something new, I never knew that, I thought once removed all is gone...:D

When a vasectomy is done, men are told to wait 6 weeks and go in for a sperm count at this time just to ensure none are left!

Sperm is manufactured in the testis and stored in storage ducts, which is why a dog low sperm count may date back a month or more to a time when the tempreture was high or the dog was unwell.

Yes once the balls are snipped out,the dog can no longer produce testosterone and sperm. However there may well be a residue of sperm in the system from before the castration. WEN

Just to add that the hormones produced by the testis are not only for reproduction they also help with the growth of the complete adult animal, once removed the organism has to manage with out part of his hormonal system, some manage well others don’t. The earlier the hormones are removed from the animals system the less chance that the animal will achieve full maturity.

I have just had my male dobe "done"..and my vet said its up to 3 months!!!...I have to keep him away from my female, as she has just started her season.....but no blood..and think she has had a dry season...and he has mated her.....eeek!!!!

Charley

Charley, what is a "dry season"?

Another term used is 'silent season' where the bitch doesn't bleed and show's very few if any outward signs of being in season.

I've never had a schip with a silent season before this year but this time my 2 bitches had silents, both having had normals every other season and a couple of bitches that have been for stud services have been the same with puppies being produced as if a normal season had happend. I asked my vet about it and he tells me there seems to be a trend in silent seasons this yr in most breeds he's dealt with and he like me can't see a lot of bitches being that clean that you don't see blood. Mind you can't fool the boys they rarely miss an inseason bitch silent or not lol.