Tracey - I know of a Komodor breeder that did one sire in each horn and got pups from both sires.

Kadi - How was the bitch bred that you got pups from both sires? AI? Live cover? Both?

Lynne - I don't think they do embryo transfers like in horses but I have never looked into it. I used to be big into showing horses and showed halter horses for awhile. I was at the ApHC annual board meeting when they voted on embryo transfers and the halter classes.

At the time there was a gorgeous mare that had won worlds and nationals from a weanling on up in halter and the only class she had not won was the broodmare class. Well, the owners evidently were going to do an embryo transfer which meant the mare could keep her "girlish" figure. If I recall, the club voted that to be eligible for the broodmare class the mare had to actually deliver the foal :-p I later heard the mare went down to Mexico for a year and delivered her only colt down there ;-)

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More often than not the puppies are sired by only one stud but I do know people who have "won the lottery" so to speak and gotten puppies from both sires.

Ok this might be a totally stupid question
I knew dogs and cats could potentially have litters sired by multiple males, but I always assumed each pup was from a single dad.
Is it not one one egg/one sperm in dogs???

Jennifer- not a dumb question. Unless there is a genetic error (trisomy) I thought one sperm and one egg is must- at least in mammals. Meiosis and all that doesn't work right otherwise. Or have I forgotten that much genetics?

So, one dad per pup. Each pup could have a different dad, though.

 Quote: tasha pluim

I have a litter on the ground right now that we did this too. One sire on one side, and the other on the other side. Awaiting the DNA results,

Oooooh, eager to hear, Tasha! Enjoy the puppies! The thought that mine are going "home" in 2 weeks is killing me. They just got here!

T

 Quote: jennifer lee

Ok this might be a totally stupid question
I knew dogs and cats could potentially have litters sired by multiple males, but I always assumed each pup was from a single dad.
Is it not one one egg/one sperm in dogs???

Jennifer, you are right. I may have worded my post funny. One puppy won't have two sires on a "dual sire" breeding. It's just that most of the time, one sire wins out. More often than not, all puppies in the litter are sired by only one of the males.

If a breeder attempted "dual sire" because one stud was "iffy" (ie: older, lesser semen quality), then this isn't really a problem. However, if a breeder does such a breeding in hopes of getting multiple puppies from one sire, and multiple puppies from the second sire as well, this can be disappointing. That's what I meant.

Tracy

Thanks Tracy!....I was really confused. (which is easy to do )

 Quote: Ingrid Rosenquist

Tracey - I know of a Komodor breeder that did one sire in each horn and got pups from both sires.

Great information...thanks, Ingrid!
Tracy

 Quote: ingrid rosenquist

Kadi - How was the bitch bred that you got pups from both sires? AI? Live cover? Both?

All live cover. But what I did was breed her to one male, then immediately breed her to the other one. 2 days later, I bred her to 1 male (the one who was second the previous time) then immediately bred her to the other male.

So as much as possible, timing wise neither male had an advantage. If I'd bred her to Mac on Tuesday, and Havok on Wednesday, then by Wed her eggs might have all been fertilized by Mac. Or vice versa if I bred her to Mac on Thurs, maybe Wed they all got fertilized.

Obviously with each breeding whoever went first did have a minor advantage timing wise, but it worked, 7 pups and the split was 3/4 on sires, as close to 50/50 as I could get with an odd number litter.

Unless the female was getting up there in age, and breeding her again at a later date wasn't an option, I wouldn't do a dual sire if I was worried about the quality of the sperm of one of the males, due to age or other circumstances. Just because I would think the more vigorous sperm would "win" and fertilize the eggs before the other sperm could.

I have heard of people doing the inseminations into each horn, that IMO would be the best way to try to get pups from both sires if you are doing an AI.