|
Thank You very much for your advise. yes he and his siblings are cuties. :) |
How’s it going? Are you going to get the parents fixed? |
Not only should the dam and sire be spayed / neutered, all of their offspring could be carriers and should be spayed / neutered as well ... and not only from this litter but also previous litters. |
Quote:
There is dna test for D locus to determine which dogs are carriers of the "d" allele |
Quote:
|
We don't yet know the outcome of the genetic test on the little one. Then, I have couple of questions. 1. Breeding Pairs. I've read and re-read the article published by Animal Genetics, "D-Locus (Dilute Coat Color)." See the chart "Results" toward the end of the article; it describes three outcomes to the D-Locus test--D/D, D/d and d/d. If a D/D is paired with a D/d, is it true that the offspring can be either D/D or D/d (but not d/d)? If a D/D is paired with a d/d, will the offspring be either D/d or d/d (but not D/D)? 2. Pending return of D-Locus results, what if the three-week old pup's coat has changed from blue at birth to black and tan? Thank you for your input. |
Bit more on testing. For those who, like me, would like to see more testing done (in general), Animal Genetics will accept either "a dewclaw or blood" sample from very young pups. See "What is the best kind of sample to send for testing?" at "Frequently Asked Questions (Canine)." |
Quote:
If a D/d is paired with a D/d is it true that the ouffspring could be D/d, D/D or d/d? Have I missed any permutations? |
It's a simple punnett square https://en.m.wikipedia.org/wiki/Punnett_square DD + Dd a non carrier (DD) + a carrier of the recessive (Dd) 50% Dd 50% DD If both parents are carriers there is 25% chance of a non carrier puppy. If both parents have expressed the dilution gene, meaning they are both (dd), then all the resulting puppies will be (dd) as they (the parents) don't have the dominant D to pass it to their offspring. DD + dd All puppies will be carriers of the recessive (d) |
Quote:
Yes, I am referring to the pups and relatives of the parents. Both parents are definitely carriers of the ressecive d, so no test is needed. Also the blue born puppy is definitely dd. |
Thank you, Mike1975! |
Blue pup Quote:
|
Quote:
Update. Deb's little one, now a good-sized black and tan, is happy and healthy. She had the vet test for DNA, heart, kidneys. All good. No dd in the DNA. Deb and her whole family have fallen in love with the little guy. He couldn't be in a better place. |
Yay, so glad this puppy is a healthy one and not blue born, Sometimes medical tests are a good thing... |
Blue puppies With all the colors popping up, blonde, merle, ocean pearl, etc. in the yorkie universe, you can't assume that a puppy born "blue" has the "blue puppy" syndrome. Things aren't as they used to be; but DNA is a great resource. |
| All times are GMT -8. The time now is 01:35 AM. |
Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Copyright ©2003 - 2018 YorkieTalk.com
Privacy Policy - Terms of Use