Repeat breedings

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by hellsbeast02 on 15 February 2009 - 22:02

How likely is it to get the same type of litter in a repeat breeding. I saw a male from a breeding I did and this pup now almost 8 months is gorgeous. He looks very much like his VA father, same body type with a beautiful show coat, a big stallion head, very good thick bone, beautiful ear set and a wonderful loving temperament and I was wondering what my chances were if I repeated this breeding. I saw this pup back in Dec. and he looked just like any pup, but he had a growth spurt that changed him from ordinary to stunning. Yes he is still a pup and will go thru many changes, but I just couldn't beleive it was him. I told his current owner I wanted him back and she laughed at me. "Like that is going to happen". I am kidding about taking him back, but I would love to be able to get this result again.

I know pups are crapshoots, but have any of you repeated a breeding and got the same type of litter in everyway.

Thanks
Debbie

by London on 15 February 2009 - 22:02

I don't know about temperment and such, but my boy is from a repeat breeding. I was able to view photos of the pups from the previous breeding up through their first year and my guy looks exactly like they did at each stage.

by Bucko on 15 February 2009 - 22:02

This is analogous to a binary math problem, with genes taking one of two settings in each pup. A lot of genes to permute! I could show you the formula but it isn't that interesting. Technically, the odds against getting a litter identical to the last is essentially zero. But the odds of getting a litter entirely different is also zero. On closer look, it turns out that the answer to your question is actually about YOU -- that is, how discerning are you? If you are very discerning, you will see many similarities and many differences. If you are dull, you will see few of both.

I know that's not the sort of answer you are looking for (but it is in keeping with my cognitive psychological interests!) The real answer, I think, lies in examining the extent to which siblings are alike at all -- after all, siblings born in the next litter are drawing from an identical genetic pool and the mother's pregnant environment changes very, very little (unless her nutrition is dramatically altered, or she is sick). Because of another math principle not worth going into, the average puppy of a litter is demonstrably less different from the average puppy of another litter than the average puppy in a litter is from his littermates. I have not done the math, but this must be true in the vast majority of litters. Let me repeat that as it is a general principle: the average puppy of your repeat breeding will be closer to the average puppy of your last breeding than were two random puppies of that last breeding.

That's how close repeat breedings are.

by missbeeb on 15 February 2009 - 23:02

Bucko, is spot on! Good luck!

by beetree on 15 February 2009 - 23:02

And that's why computers were invented....thanks Bucko for explaining it!

by darylehret on 16 February 2009 - 05:02

The more homozygous the genotypes of the parents are, the more similar the results you will find.

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