I was reading my book and it says when breeding dogs you should let the male be with the female for a few days and they should mate a couple times a day.
Which got me thinking . . what if the dog was outside or you know those accidental puppies? If one dog breeds with the female one day and another dog the other day then who is the daddy? Can she have puppies from both dogs?
dont know but seems awfully not neccessary to let dogs breed multiple times a day considering sperm can live up to 72 hours. usually breeding them every other day or third day is enough to ensure a take.
Yes dogs can be bred by 2 different males and have puppies by each male if bred 2 days apart from each other.
Usally its normal to allow the stud dog to breed every 2 days one time a day. Otherwise he could rupture a vain in his private part and become unbreedable. Because once he has a vain rupture down there, because of over breeding, he will only rupture and bleed everytime he tries to be mated. Never to experience a normal mating ever again.
When I was involved in showing shelties I met alot of breeders and this one lady had a male that did that everytime he tried. She finally had to retire him all together after a # amount of times of him trying to be bred again. I saw her ruin a great champion sire because of over breeding him.
And she would breed different dogs to her females every 2 days to get more of the bloodlines she wanted out of her females faster then just breeding her to one dog per season.
I finally got out of keeping that type of company and unethical breeding line of friends.
But genetically speaking, twins come from the same 1 egg thus only one father is possible.
Artificial incemination (AI) can place 2 different fathered babies inside a lady. Unless she has a unending supply of eggs and she sleeps with 2 different guys and the guys fertilse the eggs at different times.
But dogs have more then one egg drop every 2 days they are in full season, thus leaving some eggs in the 2 day category open for fertility to happen by different sires if bred the every 2 days by different males.
I don't know if I am agreeing and restating in a different way or not from the previous posts. Two or more sires from a different litter are definately possible. I don't think timing has anything to do with it. Just which egg gets fertilized by what dogs sperm first. For example: A boxer escapes and is bred by 4 stray dogs in one day (it would be my personal hell scenerio). If she had 4 ripe eggs it would be possible to have 4 differrent sires to the litter from 1 day of breeding all depending on which sperm connected with the egg first.
As far as people doing this on purpose. I think it is fine if they want to do it and pay for DNA testing on all the pups. It is their business, I personally think that is a better breeding practice than line-breeding.
The only time I have ever heard of someone doing this on purpose, is with a very nice, Ch bitch near the end of her breeding career, where the owner couldn't decide between two Ch studs. It really isn't practical for most BYB's or hobby breeders.
Thanks everyone! I had no idea now I know. Though when I do breed if I do breed I would not do that. I would go crazy trying to figure out who is who then all the DNA testing to be done. It would be to much for a first time breeder that I would be! I just wondered if it is possible.
Also thanks for the breeding tips. When or if it happens I will be sure not to breed the dogs to much. I would not want to hurt my male!
The sperm can live for up to 72 hours so breeding once everyother day sould be fine. With AKC you need to keep a report of who and when you breed so there is no mistake of who the sire is. Males will fight when a female is in heat so never let 2 males run together when breeding.
"Twins are of the same genetic DNA in every way. Weather faternal or not, they have the same parents. "
that makes no sence at all. The DNA is not the same because it is the same parents. It depends on what kind of twin.
Not that I know if its even possible but I know that anyhting carried in the womb together are considered twins by medical standereds. It happens with surrogates who just get impregnated with whatever. If it is twins that doesn't mean they just call them babys from the same womb. they are still called twins.
"Twins are of the same genetic DNA in every way. Weather faternal or not, they have the same parents.
****Not true. Fraternal twins DO NOT have the same DNA. Only identical twins have the same DNA. If fraternal twins had the same DNA then they would be identical twins. If fraternal twins had the same genetic DNA then having 1 male and 1 female twin would be impossible because the DNA would be for either female only or male only.
I don't even know where all this twin stuff is coming. As far as my boxers they come from individual eggs (different sexes and colors/markings). I would more concider it to be like siblings all sharing the same birth... they don't need to have the same EXACT DNA.
And I have never heard of the harm in breeding a stud too much. Ask a vet, I don't know where that's coming from. I know of plenty of heavily used studs that service several females at once which would mean that he is being bred at least once per day or more. Not to mention others who just leave the bitch and stud out together for the entire time. I had a friend with a yorkie that 'claimed' her stud bred the same female 4 times in one day. She had a litter of 4.
You know I do have a degree, but last link was in relation to reproduction in people not dogs, which are hmm... different.
**Okay, I do see if you were concidering they were twins, that they would be like the fraternal not identical, I just have never ever thought of them as twins, just like brothers and sisters....This has developed in to an odd thread about genetic ideas**
***Edited By: alicat1 on 9/7/2005 2:23:37 PM*** Reason: >>>