I personally think blues are rare,they certainly are in demand,2 years ago february after having yorkies for 30 yearsI got my litle blue girl.I was ecstic.Then 3 weeks later I had a home invasion,she was taken along with my louis vitton bag containing may pain and anxiety meds,alot of cash and gift cards,I was crushed,I now know it was an inside job.Some of you already know of this.My Sadie is 15 weeks old and she is grey and tan. I have heard that greys are pretty rare. Just wondered if anyone else on here has one and if there's anything unique to them other than the color?
I don't find breeding blue or lilacs (IE: Isabellas) to be difficult. You just need to understand your breeding stock's genetics.
Here is an example:
Rupert our foundation male is black but we know he carries the blue dilute gene, ticking, irish/border collie markings as well as the parti color/piebald genes. He is a genetically dominant stud and he is so dominant - he has yet to produce a long haired even when bred to long haired females. He ALWAYS has a blue puppy in each litter and every puppy ever sired by him has a white patch of fur on their chest (we call that his tramp stamp).
Tia our foundation female is blue but also carries ticking, irish/border collie markings as well as the parti color/piebald genes.
When Rupert and Tia are bred they produce 45.4% blue puppies, 36.4% black puppies and 18.2% lilac puppies. Thus far we have had 63.6% males and 36.4% females. 18.2% of the puppies have presented with the irish/border collie markings - out of those one was a blue with irish/border collie markings and the other was lilac irish/border collie markings . 0% particolor/piebald markings. 100% have shown ticking either minimal or extreme.
Overall as a stud, Rupert has had 45.8% black puppies, 45.8% blue puppies and 0.08% Lilac puppies. He has had 16.7% of his puppies have the irish/border collie markings. 0% particolor/piebald markings. 100% have shown ticking either minimal or extreme.
Here is a photo showing Tia (blue), Geddy (lilac) and Rupert (black).
If a breeder understands genetics and their stock - getting blues, lilacs or any other color is not difficult (except for albino's which is a complete lack of pigmentation usually the result of a mutation but can be bred from albino stock if you have it).
It just takes effort to understand genetics.
Blue is very easy to get as many black dogs carry the blue dilute gene as a recessive. Once you know your male/female carries it - to get lilac just breed that dog to a blue or black with recessive blue.
If you breed your dogs correctly and watch what they get based on who you breed them to you will find out what genetics they carry and perpetuate. You don't need to resort to DNA testing for it. It is process of elimination based on knowing your lines and in genetics it is called test breeding.Lol, I have to correct you here. You don't get issabella (lilac? it's kind of confusing for everybody if you use more terms for the same gene. It's Isabbela and it's bbdd) by breeding a black dog with the dilute gene to a blue or black with the blue gene (blue is ALWAYS recessive) because dillute IS blue. In orther to get isabella, both parents need to carry the dillute (D-locus, blue) and the liver gene (B-locus, liver). If you mate a Blue chihuahua (dd) to a liver chihuahua (bb) you don't automatically get the isabbella colour.Because the blue chihuahua also needs to carry the liver gene (so Bbdd) and the liver needs to carry blue (bbDd). If any of the parents doesn't cary one of thes genes (bbDD x Bbdd or BBdd x bbDd ) you'll never get isabella.
You can only know what the genes of your dog are, if you get them DNA tested. And many breeders don't test them, why should you?
Ofcourse its easier to get blue dogs if you have two dogs, one carrying the dilute gene and one thats blue (2 dilute genes). When you breed those 2, you'll have 50% chance of blue (dd) dogs.
Irish spottig and piebald are genes on the S-locus. They are recessive so a dog needs to have 2 of those genes to express this. Ticking is on the T-locus. And it's a dominant gene, thats why a dog needs only one gene to express ticking. It can only occur on white areas though.
Not all dilute breeding lines carry the gene that causes the Alopecia. So it is important for breeders considering purchasing stock that carries the dilute genes or a dilute dog - to research the lines before hand.I'd like to ask a question and I mean no offense by it. I'm just extremely curious. If the Blue and Fawn genes have a chance to carry the Color Mutant Alopecia why would you (I mean breeders, not anyone specific) purposely breed these colors. From what little I read (and I know nothing of genes ets..) You would never know a blue pup has this until between 4 months and 3 years. Otherwise they look like perfectly fine pups with nice coats? What a shock to owners later when they don't realize this could happen. And do ALL blues/fawns develop this?
I came really close to getting a LC blue chi and never knew anything about color mutant alopecia in chihuahaus. The breeder never mentioned that such a thing was possible.
I can't help with the color thing. I just wanted to say "She is beautiful"!I finally got her picture uploaded - it's on page 3 of this thread and I wondered if she is considered "blue" or grey or what? Thanks for all the input
Isabella (also known as Lilac) is a coat color. It is a double dilution of the black gene (it is denoted as being ddbb genetically).You guys lost my way back there
I Have one question though. What is issabella and what does it look like?
Also Do chocolotes get Alopecia?