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Albino vs PEW?
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Topic: Albino vs PEW? (Read 1996 times)
Ratschooksanddog
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Albino vs PEW?
«
on:
November 13, 2004, 02:05:19 AM »
hey guys
There was a topic on genetics down a bit and after following a few links I read something about PEW and albinos.
Now...In the few litters I have had (I now regret that...I didn't know enough) I had a few White rats with pink eyes.
What I was wondering is...are they PEW or Albino?
I know know that what ever it is that it is compleatly resecive. The rats come out pure white with whispy pink eyes.
The rats that the PEW/Albinos come from are all hoodeds...veriouse colors.
Any ideas? What IS the differance between the tow and how do you tell?
Jessica
(I just thought I would mention...That I have had a few litters. That was quite a while ago...before I came to here. I now know i don't/didn't know enough and will not breed again untill i can be certain i do...if i ever do breed again)
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jaimee
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Re: Albino vs PEW?
«
Reply #1 on:
November 13, 2004, 03:21:37 AM »
ehh... aren't they exactly the same thing?
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Rattie_lover
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Re: Albino vs PEW?
«
Reply #2 on:
November 13, 2004, 03:45:09 AM »
now im confused too lol..i always thought they were the same but pew was quicker to say or something..so now i'd like to know what the difference is too!
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Leslie Marie
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Re: Albino vs PEW?
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Reply #3 on:
November 13, 2004, 04:27:55 AM »
I always thought they were the same thing. Just different terms for it. :huh:
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Sugarfoxx
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Re: Albino vs PEW?
«
Reply #4 on:
November 13, 2004, 05:00:38 AM »
They are the same. There is no pigmentation so that is why they are pink or red and their fur is white.
Now...a BEW (black eyed white) is not albino....there is pigment in his or her eyes causing the dark eyes.
Albino is an old fashioned term i guess.....we in the rattie world say PEW! LOL
Check out this article about it!
http://www.afrma.org/pewrats.htm
«
Last Edit: November 13, 2004, 05:02:35 AM by Sugarfoxx
»
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Ratschooksanddog
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Re: Albino vs PEW?
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Reply #5 on:
November 13, 2004, 05:48:10 AM »
oh...ok...well what triggered this post was mainly a piece of info from this site -
http://www.boardmanweb.com/rattery/geneticcode.htm
"Pink Eyed Whites (PEW)
PEW?s are not albino, but rather a result of too many dilutions being mixed together causing the rat to be washed out of all color.
aa dd gg mm / A/- dd gg mm; a add gg mm rr and others.
"
In the chart for all the codes it tells puts the albino. I then thought..."If PEW are not albino...then what are they? What are albino?"
Well...seems that was answered...I think.
Jessica
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Sugarfoxx
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Re: Albino vs PEW?
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Reply #6 on:
November 13, 2004, 06:13:06 AM »
Aww well hell....now I dont know! LOL!!
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scout
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Re: Albino vs PEW?
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Reply #7 on:
November 13, 2004, 07:17:27 AM »
Genetically, PEWs and albinos are completely different, caused by different genes, just like the Boardman web site says.
That said, they can look so much alike, it's hard to tell the difference. I have one of each and the two of them are a little different. The albino has very pink eyes, and look almost clear, as if I'm looking all the way to the back of her eye (not possible, but it's a good way to describe it). The PEW has a little bit darker eye, not as clear. Also, the albino is a pure, crisp white (when she's clean), but the PEW has a bit of a color cast to her coat. Sometimes it looks a little grey, sometimes a little creamy, depending on the lighting. I wish I had a picture of the two of them side by side - but they won't tolerate each other.
Hope that helps.
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Scout
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Re: Albino vs PEW?
«
Reply #8 on:
November 13, 2004, 08:46:45 AM »
White PEWS and Albinos are completely different! I though people knew this.
An albino stays an albino, with albino genes. A white PEW is just simply a white PEW.
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Sugarfoxx
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Re: Albino vs PEW?
«
Reply #9 on:
November 13, 2004, 09:24:45 AM »
Quote from: Xioyux on November 13, 2004, 08:46:45 AM
White PEWS and Albinos are completely different! I thought people knew this.
An albino stays an albino, with albino genes. A white PEW is just simply a white PEW.
Well guess you thought wrong...people did not know this...obviously.
Thanks for clearing that up Scout.
Well....my lab boys must be albino? They are pure and I mean pure white...and Casper is more on the creamy white side. Also on my labs....well...LAB as in ONE since the other three are gone now, I looked real close at Skittles eyes today and they are almost a transparent pink....like his eyes are made of pure glass and you can see the pink marble inside. Its hard to describe.
Casper and sugar have red eyes, not ruby though. My dumbo is an odd eye and one eye is black, the other is ruby.
Ruby is when the eyes are super dark red....almost seem black until they are in the light....dark ruby I guess you can call his odd eye. Sugar and Caspers eyes are not light pink but not really red....just...fuschia? LOL I dont know!
Well ya learn something new every day dont ya? Looks like the thread I posted was incorrect UNTIL you read the entire thing...which I didnt....and at the bottom it says that they are NOT the same. LOL! Go figure why the opening paragraph says that PEW is a rattie lover term for albino....and yet at the last few paragraphs and goes on to say they are different.
Hmmm..
«
Last Edit: November 13, 2004, 09:30:23 AM by Sugarfoxx
»
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BadRattitude
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Re: Albino vs PEW?
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Reply #10 on:
November 13, 2004, 09:58:44 AM »
Here is my post from another board, maybe it'll help :
Actually, albinos and PEW are genetically different. True albinos are genetically c/c, which is the same set of genes that with a modifier causes Siamese and Himilayan. PEWs are genetically p/p which causes a diluted coat and eye color, where albinos have NO color to begin with.
The c/c genes cause the development of a nonfunctional enzyme cause tyrosinase which helps convert precursors to pigment within the pigment production pathway. Without this enzyme pigment cannot be produced and the rat is a true albino with no pigment. Some versions of this gene cause temperature dependant tyrosinase, which forms pigment in the coolest parts of the body which results in the Siamese/Himis, they have a (h) modifier attached to these genes.
The p/p genes changes the pH balance within the melanosomes, which is where pigment synthesis occurs. By making the environment more neutral they produce less dark pigmentation and cause the coloring of the animal to be more diluted, in dark ticked varieties it dilutes the darkest pigments causing colors like champagne and amber.
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umbrella
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Re: Albino vs PEW?
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Reply #11 on:
November 13, 2004, 10:41:06 AM »
So you wouldn't know if your rat was a PEW or genetically albino unless you bred it? What would you breed one to to find out (you know, if you were into that).
And I am NOT asking so I can test-breed my PEW. One rat with tumors is enough
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Sorraia
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Re: Albino vs PEW?
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Reply #12 on:
November 13, 2004, 11:09:26 AM »
The only difference between a PEW and an albino is genetic. All albinos are PEW, but not all PEWs are albino. Albino is caused by a recessive gene (cc) that masks all pigment (so you might have a genetic blue albino rat, but all you see is the albino).
A PEW on the other, can be caused by a number of possibilities. A PEW can be albino (the simplest), or a PEW can be a triple (or more) dilute including PED. You can also get a PEW the same way you get a BEW: maximum white markings along with pink eyes.
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Black Wolf Rattery
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Sorraia
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Re: Albino vs PEW?
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Reply #13 on:
November 13, 2004, 11:15:49 AM »
Quote from: rhinecat on November 13, 2004, 10:41:06 AM
So you wouldn't know if your rat was a PEW or genetically albino unless you bred it? What would you breed one to to find out (you know, if you were into that).
Well, you can look at the pedigree to see the most likely possibility. If there are PED or other diluted rats in the pedigree, there are a good chances you have a triple dilute PEW. Then to test breed you'd want to breed to another PED rat. If you get PED babies, then you ahve a triple dilute PEW. If you don't get PED babies, you have an albino.
Also, if you have an actual white rat, you can compare coat color. As someone else said, a PEW can have a slight color cast, while an albino is a pure, crisp, clean white.
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Black Wolf Rattery
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SR&P
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Re: Albino vs PEW?
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Reply #14 on:
November 13, 2004, 02:32:02 PM »
A pew can be a a bunch of dilutions, like the site above said, or, it can be albino. The albino gene is cc, too many dilutions is more like aa pp gg mm.
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Sugarfoxx
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Re: Albino vs PEW?
«
Reply #15 on:
November 13, 2004, 02:54:26 PM »
You people should know this! GAH!!
FOR SHAME!
..........................................
..........................................
errr......just kidding!
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cerulean.blue
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Re: Albino vs PEW?
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Reply #16 on:
November 13, 2004, 04:29:00 PM »
I didn't know that either. I thought they were the same thing. I feel kinda stupid asking this, but what's PED?
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-Mandy and
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Re: Albino vs PEW?
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Reply #17 on:
November 13, 2004, 04:40:18 PM »
there's different genes out there that result in PEW color... while it's hard to know if it's a true albino (I was once offered a true albino mouse who came from a long line of siamese mice.. I didn't take him obviously because I had no purpose for it.. I don't breed domestic mice).
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scout
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Re: Albino vs PEW?
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Reply #18 on:
November 13, 2004, 04:43:24 PM »
Pink Eyed Dilute - a term for the color gene that causes pink eyes and dilutes the color of the coat to a pale tannish color.
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Scout
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Re: Albino vs PEW?
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Reply #19 on:
November 13, 2004, 06:26:38 PM »
Wow, this is cool stuff. I thought they were the same. sigh.
Quote from: BadRattitude on November 13, 2004, 09:58:44 AM
The c/c genes cause the development of a nonfunctional enzyme cause tyrosinase which helps convert precursors to pigment within the pigment production pathway. Without this enzyme pigment cannot be produced and the rat is a true albino with no pigment. Some versions of this gene cause temperature dependant tyrosinase, which forms pigment in the coolest parts of the body which results in the Siamese/Himis, they have a (h) modifier attached to these genes.
I have a rescue from a feeder tank that I've been calling a himi for the sake of a better term. Obviously I'll never know what she is genetically but I'd like to be as acurate as possible with her color. Hey, I used to show cats so I'm really into calling my animals the proper colors.
She was pretty white a youngster but has gotten a creamish tint and a slightly darker (but still faint) cream shadow of a hood that you can see in certain light. Her ear tips, nose, end of muzzle (area also extends slightly up toward the eyes), around the base of her tail (about ahalf inch wide) and her tail are all brown I've seen siamese and her coat is lighter than that (or at least the ones I've seen) and her eyes are red. When you look really close you can see a small spot in the center that I'd say is dark ruby but the rest just looks red, not transparent and not ruby.
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Patricia
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Re: Albino vs PEW?
«
Reply #20 on:
November 13, 2004, 10:24:31 PM »
hehe, just to confuse everyone more.. whats a REW? I've seen it on other rat sites. Is it the same as pink eyed white, just called red eyed white instead? Or are there different eye shades in the pink/red spectrum caused by more genetics? -Neb
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Scratch
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Re: Albino vs PEW?
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Reply #21 on:
November 13, 2004, 11:45:39 PM »
Heh... I always thought they were the same, too!
Uh... so what is Sam? (rat in signature)
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Rattie_lover
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Re: Albino vs PEW?
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Reply #22 on:
November 14, 2004, 03:32:36 AM »
now, i dont mind i dont need to know the answer to this but im now curious lol - brain, my rat who recently lost part of her tail, has clear pinkey eyes with a ruby dot which looks like her pupil inside. so if ive been reading correctly that means she's mpre likely albino right? but she's not pure white she has a little grey blob on her nose..so does that mean she's pew?
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Ratschooksanddog
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Re: Albino vs PEW?
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Reply #23 on:
November 14, 2004, 03:44:54 AM »
ooooohhhh...look what I have started!!!
Looking at mne I would say that they are all Albino...bar 1...I didn't breed her myself...she was given to me. She has the faintest hood.
ok...now what i was wondering...Was on that site it listed albino under both agouti and black. How does that come across dominate/recesive wise?
Jessica
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cerulean.blue
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Re: Albino vs PEW?
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Reply #24 on:
November 14, 2004, 12:19:34 PM »
Quote from: Nebit on November 13, 2004, 10:24:31 PM
hehe, just to confuse everyone more.. whats a REW? I've seen it on other rat sites. Is it the same as pink eyed white, just called red eyed white instead? Or are there different eye shades in the pink/red spectrum caused by more genetics? -Neb
They're two different colors. I think ruby and red eyes are the same, but I'm not sure. Anyways... ruby eyes are darker than pink, almost black. Pink is pp. Ruby is rr.
http://www.boardmanweb.com/rattery/geneticbasics.htm
Wait- is that the same website that started this thread??
«
Last Edit: November 14, 2004, 12:35:29 PM by luv-animals
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Re: Albino vs PEW?
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Reply #25 on:
November 14, 2004, 12:42:24 PM »
That website made me come up with another question: If rex/wavy coats are dominant, why are there so many standard coated rats?
What kind of marking is this?: Roberts / Essex: H(ro) ? in addition to markings, causes fading of coat
«
Last Edit: November 14, 2004, 12:54:40 PM by luv-animals
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