How does the transmission of the genes for descend - Page 1

Why would a dog or bitch consistently produce problems with lack of descended testicle? Are there other factors than genes? What is your experience

It's in the genes, nothing you can do to improve the odds.

In several wild mammal species, inbreeding between closely related individuals in small populations is associated with a high incidence of cryptorchidism and monorchidism, because these harmful recessive genes are more often expressed. Would be interesting to know if this poblem is more common in GSDs with v. close linebreeding......

Interstingly, if one knows how and it's done early enough, testicles can be manually pulled down. I've seen some vets who know how to do this, and I saw a dog trainer do it on a television program about a week ago. Old breeders have little tricks here and there. I spoke with an old lady who bred cocker spaniels...she could rid her pups of umilical hernias...bet she knew how to get testicles down too. Wish we had some old timers posting here...but then an old timer would never put up with the gossip mill...LOL Best Wishes! Sue-Ann

Hi, I think this link can shed some light on the issue: http://groups.yahoo.com/group/GSDGenetics/message/14819 JG

Interesting thread....Thanks again for the info! I wouldn't take the chance of breeding.I bet it is the female genes.........

A monorchid dog cannot reproduce. The testicle inside is exposed to too high a temperature to produce viable sperm. Usually the undescended testicles also shrink in size, as small as kidney bean. Another reason why they will not function properly. A monorchid dog can reproduce from the descended testicle only. Undescended testicles can be "trained" down in a young pup until the pup has matured far enough that they stay down. It takes regular hands on work to accomplish that. How to find the undescended testicle in a puppy? Two ways. 1 - with the puppy standing reach between its legs from behind, put it close to the dogs belly button. Place a finger on each side of the dogs sheath and slide them back. In most cases the testicles will be pushed down with this motion. If that does not work try If the undescended testicle is removed and the other left intact the dog can still reproduce. While the undescended testicle is removed, a vasectomy can be done on the intact testicle so that this dog may lead a life with normal hormone levels but cannot reproduce, especially unintentionally.

oops, hit the submit button by mistake :o) Method 2 for finding hidden testicle: Sit the puppy on the edge of a table, so that the tail is hanging down and you have some space to reach under its belly. Try the above with the pup sitting. Because it is sitting it cannot suck in the testicles, all the dogs insides push out and the testicle is usually easy to find. Couple of more notes: Warm up hands before handling pup. When sliding the fingers back, apply gentle but firm pressure. When you come toward the area between the legs you will feel some belly fat and a bit of a hollow, keep going until you go past that hollow area and are left with testicles in hand. When you feel the testicles, especially with a small pup, handle with care!!! Train testicles down - find them once a day and when you can feel them, then gently massage them down a few times, into the scrotum. They should be in the scrotum once a day until they stay down on its own. At least until pup is 6 months to be on the safe side.