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01-12-2006, 07:58 PM | #1 |
YT 1000 Club Member Join Date: Nov 2005 Location: TX
Posts: 1,226
| a question about genetics, I guess. I’ve read that it really doesn’t matter so much what the mom or dad weigh....a three pound dog can have a puppy that grows to be 12 lbs, and vice versa. Right? Is the same true of body shape, muzzle length, hair texture or color, etc? Say I’m looking at purchasing a “pet quality” puppy (which I am), and I see the mother--say her body is longer and thinner than I care for, or her hair is more silvered than I personally like–how much is this a factor in the kind of puppies she will produce? Or is it as random as it is in humans? (Ie: kid can be the spitting image of mom or dad, or kid can be the spitting image of great great uncle so-n-so who know one even remembers anymore, or kid can be the perfect blend of both parents, or kid can look like the mailman. ) |
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01-12-2006, 08:04 PM | #2 | |
Donating YT 14K Club Member | Quote:
The best way to tell what kind of dog you're going to end up with is to look at the parents and grand parents...at least. That should give you a good idea!
__________________ As always...JMO (Just My Opinion) Kimberley | |
01-12-2006, 08:09 PM | #3 |
YT Addict Join Date: Feb 2005 Location: Frisco TX
Posts: 430
| you can sometimes see a resemblence to mom and dad at a very young age. My last litter of 4 they all looked different some were short and stout some were long and lean. Chances are you baby will be pretty. What does the dad look like? Does the pup seem to be taller and longer than the other's? Compare them all if you are able. Do you have pics of your possible pup? It is alot like humans.
__________________ yorkies are the key to the heart of happiness |
01-12-2006, 08:21 PM | #4 |
YT 2000 Club Member Join Date: Jun 2005 Location: Eastern PA
Posts: 2,484
| It's my night for posting novels, I guess... Here's a copy of Goldenray yorkies info on coat color genetics for a started primer. There's much more involved when looking for further characteristics....and y'all thought this breeding stuff was easy, huh? LOL! Genetics of Coat Color Of The Yorkshire Terrier The Yorkshire Terrier is born Black&Tan (B/T)and should change all black body hair to a dark steel blue as an adult dog. The blue body coat can change color at any time after 8 weeks. I’ve heard it said that early breakers are always light. I do not find that the case. I have had them break blue by 12 weeks & stay an extremely dark blue all their lives. I have also had later breaking ones go lighter blue than I preferred. The tan is a rich golden tan that keeps darkening with age. The golds seem to keep deepening in color up to about 3 years of age. I know there is some confusion, because people assume black is a dominant color in Yorkies. Per Malcolm Willis’ “Genetics of the Dog” the genetic makeup is of a B/T dog, which is a recessive color to black, it is not a matter of simple dominant black. B/T is the only gene the Yorkie should be carrying for pattern. The blue coloring is created at another loci. A solid black dog carries the genes AA or A with anything else. The B/T carries a(s)a(s), which is the B/T with a saddle. Anytime an upper case letter is shown that’s the dominant & lower case is the recessive. a(s)a(s) shows this as a recessive color. As we go on remember the Yorkie is a B/T dog, but since I will be talking about achieving blue color vs black color, for ease of writing and understanding I will drop off the tan. The only way a Yorkie can achieve blue color is if they are carrying the Graying gene. Now geneticists refer to it as graying, but in our breed we call the achieved color blue. This is the gene that effects the blue color on breeds that are born one color & turn blue later in life. GG will give you a blue dog and Gg will give you a blue dog, but is carrying the recessive for non blueing and gg will give you a black dog, as this is the non blueing gene. Some confusion comes from people not understanding how they get a black soft coated dog from a breeding of two blue silk dogs. If you are breeding together two dogs that are both Gg then they are both carrying the recessive gene for non blueing and if the two gg genes for non blueing get together it will result in a black dog. When the dog is Gg, the dog will be blue as the dominant gene is G which is what causes the color blue and will exhibit that color. When the dog is gg, the only gene they have is the non blueing gene, so they also can only exhibit that color which will be the black color. Dogs that are born blue carry the dilute gene of dd, which should also not be in the Yorkshire Terrier breed, although that is what would cause the “Blue born puppies”. When you breed together two Gg dogs, your chances of mostly blue dogs is very good. Since the dogs in question are blue dogs as they are Gg, G being the dominant and the dogs exhibit that color, but carrying the g which is a recessive they are able to pass that recessive on to the resulting puppies from the mating. The chances of the g sperm from one dog getting with the g egg from the other are not going to be real great but it will occur. Most times the G of one will end up with the g of the other and you still end up with a blue dog. Not to say that the odds are not against you and you end up with a litter of soft coated black puppies. We all know from breeding dogs that nothing holds true 100%. I know a lot of people breed their black Yorkies, as they feel they have a lot of benefits. This is fine, but I would only breed one to a blue dog. Keep in mind that the blue color is dominant here and the black recessive. A black dog can only throw a recessive gene and if bred to another black dog the resultant puppies will also be black. An example of a Brussels Griffon litter I had. I bred two rough coated Griffs together. I new the sire had a smooth parent which meant he was carrying the recessive smooth gene. In 6 generations on my girls pedigree there was not a smoothy there and assumed she didn’t carry the smooth gene. Low and behold I had 2 smooths out of 3. So this girl was carrying a recessive that has been passed along for atleast 7 generations unseen & finally popped up under the right circumstances.The same can be true of blue silk dogs. You can breed along for many generations assuming you have locked in the color & texture & out pops a black soft coated puppy. The recessives were there hiding within those two parents & finally come together. Recessive genes are wonderful if they’re for the quality you want. In two generations you can totally lock something in your line (such as long hair). The problem can be with dominants, you can breed for it, but you almost always have to continue breeding for it or those little recessives keep sneaking in there. As I mentioned with the Brussels Griffon, they can be passed along for many generations before they actually appear or get the chance to appear. Density of the shade of blue can be bred for, by selecting dark steel blue whenever possible. This does seem to be a quality that you can lock into with fairly much regularity. As with all the other things in breeding dogs though, when you expect something, always be prepared for something else. Article printed in TYT Magazine |
01-12-2006, 08:51 PM | #5 |
Donating YT 30K Club Member | Cali didn't look at all like her parents and completely different from her 2 sisters although her coat seems to resemble her fathers which isn't too good. With my last Yorkie, Gracie her mother was real light silver and had weird eyes, they were like on the side of her head, Gracie turned out beautiful, she was light like her mother but had the cutest face and her coat was beautiful. I kept her in a long coat and she looked like a show dog. She did have champion bloodlines. I just find when I go to look for a puppy I fall in love no matter what it looks like.
__________________ Cali Pixie Roxie : RIP Nikki; RIP Maya;RIP my sweet Dixie girl 1/17/08 http://callipuppyscastle.bravehost.com/index.html |
01-12-2006, 09:10 PM | #6 |
Donating YT 1000 Club Member Join Date: Apr 2005 Location: Wylie TX
Posts: 1,577
| My dogs had pups on May 22, Zowie is around 8-9 pounds, bronx 6. The two boys are 10#, the girls are 6 and 3#. The boys are both still black, Quattro has practically no lighter hair in his black and his head hair is silver. Teddy is getting a little lighter but his gold hair has always been dark gold, and getting darker. Trina and Robyn lost there black very young, gold is light gold. To me, Teddy looks much like Zowie, the others have shorter noses like Bronx. Bronx has very curly hair - none of the puppies are curly like he is. Zowie has a longer body, bronx is square. The pups are all square. boys are both taller than mom, weight about the same. I feel their facial and body characteristics were very noticable at least by 8 weeks and have not changed that much. Maybe their legs were still short back then, but they looked sorta like balls. that is my one experience. note: All Yorkies are adorable - no matter their size or shape - I love ALL of mine the same, just have to be more careful of my tiny girl. I think 10# are the most huggable
__________________ Laura--loving mom of Robyn, Dexter, Sandy, Mattie, Sammy, Jake & Mollie http://www.yorkietalk.com/gallery/sh...00&ppuser=1851 |
01-12-2006, 09:28 PM | #7 | |
YT 1000 Club Member Join Date: Jun 2005 Location: Midwest
Posts: 1,194
| Quote:
ZZzzzzzz....THUD! Francie struggles back into the computer chair...blinking at the screen...ponders why "Nice N Easy" wouldn't be a simpler choice... Francie | |
01-12-2006, 09:44 PM | #8 | |
YT 1000 Club Member Join Date: Nov 2005 Location: TX
Posts: 1,226
| Quote:
But...I guess ....going from the responses here...it’s all sorta a crapshoot? BTW Patti, I was just admiring your avatar on another thread. Cali is SO adorable. And sorta an unusual color too, or is it just my monitor? Anyway...VERY cute! I should just hope to end up with such a doll! | |
01-12-2006, 09:55 PM | #9 |
YT 2000 Club Member Join Date: Nov 2005 Location: USA
Posts: 2,992
| Genetically - all things being equal - puppies are most apt to resemble their parents. These will be strongest genes that a puppy inherits. But, we have to remember that a puppy will also inherit some genes that go back several generations. No one can guarantee the size a yorkie pup will become. There are, however, many clues that help us get we want. First and foremost - look at the dog's parents - secondly learn about their grandparents or further back, if possible. Also experienced breeders (not me) can tell some things about a puppy when it is first born - and, they can tell more about a pup when it is a few months old. Most puppies that are very small and stay small their first few months will probably not grow up to be a large Yorkies. My Yorkie's mom weighs 12 solid pounds. His father weighs 4 pounds (4 1/2 pounds on a good day). These two dogs have had several litters, and most of their pups have become about 6 pounds - full grown. But a few have been smaller and a few have been larger. Just what we'd expect - right! However, after all is said and done --- I think the best that most of us can do is pick out a little puppy, and hopefully, see its parents. This along with being able to talk to the breeder should give us a fairly good idea of what the little pup will end up being - as far as size, color, etc. go. You always take some chances when you have a child (or even adopt a child) or get a new little puppy. But don't we love them anyway! Carol Jean |
01-12-2006, 09:58 PM | #10 | |
Donating YT 1000 Club Member Join Date: Apr 2005 Location: Wylie TX
Posts: 1,577
| Quote:
__________________ Laura--loving mom of Robyn, Dexter, Sandy, Mattie, Sammy, Jake & Mollie http://www.yorkietalk.com/gallery/sh...00&ppuser=1851 | |
01-12-2006, 10:21 PM | #11 | |
YT 2000 Club Member Join Date: Jun 2005 Location: Eastern PA
Posts: 2,484
| Quote:
OH MY GOD Francie...you have me busting a gut with that one...and also made a good point. Doing this kind of homework and actually Learning about genetics before breeding your dogs can be very dry stuff and complex, but really is essential background study to be able to have the slightest clue about outcomes. Sheesh, this was a lightweight, user friendly article...I'd send you my fave genetics book, but I can't afford the shipping charges. LOL!
__________________ Stacy and the crew | |
01-13-2006, 04:30 AM | #12 |
BANNED! Join Date: Jan 2006 Location: Majorca
Posts: 163
| I dont know if seeing the parents always works because when I got Lady the parenst were there.Ladys mom was beautiful,she had the longest coat and weighed about 7lbs,also she was blonde. Her dad was more stocky (he looked a little smaller than her mom but I dont know how much he weighed exactly) and his coat was also long but thick and he was black and tan.Of course Lady was to young to see what she´d end up like,but seeing the parents I at least thought shed have a beautiful long coat which Id need to cut every now and again. Now at 2 years old,shes stayed at 2lbs and although her coat has a nice texture (easy to brush,straight etc) it doesnt grow AT ALL. Iv never cut her hair and never had to,its about 3 inches long (in some places shorter) and there its stayed My other yorkie Jess has the same father as Lady but a different mother,again the mother has a wonderful long coat.Jess looks more like her parents (her father in particular) BUT again she has the short coat Iv never cut it and although its texture is lovley,its short.The longest strands are 3 inches long and in the shortest places its just over an inch Whats up with that??? |
01-13-2006, 05:52 AM | #13 |
Senior Yorkie Talker Join Date: Nov 2005 Location: Gainesville
Posts: 224
| i loved that genetics post by sylvan. but then again, i am a huge nerd.
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01-13-2006, 07:22 AM | #14 |
No Longer a Member Join Date: Jul 2004 Location: South Florida
Posts: 8,577
| puppies The first 3 generations are so important. Of course, big Yorkies produce small and small produce big..but it is not a complete crap shoot. If you have a line of average size Yorkies..4 to 6 pounds..you should not get a huge variety of size..you might get a smaller pup quite often, but rarely a huge one in a consistant line. "Type" is genetic..you can not breed two large head terriers and expect a short muzzle and small ears. I have not seen a terrier type pup come from two cute, refined heads. The pups may not be as refined as the parents, but they do not look like Silkies either. If you put apples in the pie pan, blueberry pie ain't coming out of the oven...although some people sure get a better apple pie then others. |
01-13-2006, 07:34 AM | #15 | |
YT 2000 Club Member Join Date: Jun 2005 Location: Eastern PA
Posts: 2,484
| Quote:
Pat, I'd be grateful for a slice of any pie you bake...
__________________ Stacy and the crew | |
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