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Discussion Starter #1
Genetics of size for pups...Sire vs. Dam?

i know that dogs that come from the same litter grow differently but will a male pup be the same size as his sire?? or is it possible he could take up some traits from "grandparents??"
 

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Genetics of size for pups...Sire vs. Dam?

You may want to move this to the breeder section. People who breed tend to keep track to their pups and would be able to help.

I personally think it's a bit of a genetic crap shoot! If the male and female are smaller, the pups may TEND to be the same. But that doesn't mean for all the pups in the litter. Probably easier to tell on a repeat breeding also...
 

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Re: Genetics of size for pups...Sire vs. Dam?

I agree, it is a "crap shoot". I have seen puppies that grew to be larger than BOTH parents and I have seen them end up smaller than either parent. "Generally" you could expect them to be "about" the size of the parents.
 

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Re: Genetics of size for pups...Sire vs. Dam?

No way to know for sure based just on the parents. Depends on if the size of the parents is normal or abnormal for their families. If most of the dogs in the family (parents, grandparents, their siblings, etc...) are around the same size, than looking at the size of the parents to be a good indicator of the size the pup will grow to be provides a good guesstimate, but is far from a sure thing. If the parent's relatives vary widely in size, the genetics for all sorts of different sizes exist in the bloodline, and thus likely exist in the parents themselves, and you really can't guess how big the pups will be.
 

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Discussion Starter #5
i posted this in another thread but i figured it would get more attention in the area. i know that pups grow differently and at different paces. so here's my question, will a male pup be the same size as his sire or is it possible he could take on the traits (as far as size) of "grandparents?" the reason i ask this is because my boy is already taller than his sire at 8 months old, not by much, but tall enough that u can tell just by looking. also my boy came from the first litter between these two dogs (his sire and dam) so there are no other pups to compare him to.
 

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I don't know but my bitch is about 21" tall and the two of her sons I've met are 25" or more and look much more like the sire than like her.
 

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Discussion Starter #7
Originally Posted By: LiesjeI don't know but my bitch is about 21" tall and the two of her sons I've met are 25" or more and look much more like the sire than like her.
the last i measure tyson he was 27" at the shoulders, he is just about 1"-2" taller than his sire. he has a lot of his dam's coloring but there really isnt much of a difference in the color of the sire and dam. i know his sire is around 95lbs and is rather fit so i think that if tyson were to be 100lbs (considering he is taller wich equals more weight) it would be reasonable although i would rather him not be that heavy but as long as he is healthy, all is good with me
 

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One of my dogs is 3 years old. During his first three months of vet visits, one vet mentioned he might be a dwarf. He ended up being a steady 67 pounds and around 62 cm at the withers. His father is about 1/3 larger. His mother was of normal female size within the standard. One of his littermates , a male, was consistently 10-15 pounds more at his vet visits. He may be the smallest dog in his litter, You never know.
Paul
 

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I think it has to depend on the consistency of the genetics in the line. Are the males in the line always large or did the sire just happen to be the freak big puppy in the litter? And there are throwbacks too. We all know people who don't particularly resemble their parents, and then you see a picture of another relative when they were younger and it's more clear.

My dog was huge as a puppy and we all thought he was going to be 90-100lbs, bigger than his Dad who was about 85lbs. He stopped growing one day and ended being just about the same size. At 17 months, he's about 78lbs. I figure when he finishes filling out, he'll be pretty close to Dad.
 

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Yukon and Too's parents had three litters. Sieka, their dam, was about 70-75 lbs, and Pancho, the sire, was 65 lbs dripping wet.

All the males in all three litters were big boys. Yukon was the largest at 30" at the shoulder, the other boys ran around 29". He had HD so I kept him light at 95 lbs, but a good weight for him was 115 lbs. All the brothers ran in that weight range. The girls were all petite. Too was about 62 lbs which was about the same size range as all the girls in the litters.

I'm not sure about the size of the grandparents.
 
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