ZRabbits":38rf94rf said:
skysthelimit":38rf94rf said:
Not saying that surprises don't happen, just saying they are not random, and the whole color thing is not a futile shot in the dark. Color rules are rules, and there are some things that just don't happen. There are scientific mysteries, but things just don't defy the laws of physics.
Surprises happen, but the whole litter should not be a mystery, and for the most part, is very predictable if people stay within the color rules. I think breeders who have the philosophy that colors are a shot in the dark should not mix and match colors they don't understand. I've seen some things on peds and wondered why in the world that person mixed those colors together, because it just creates genetic mayhem.
For instance, I have a color listed on my holland ped as an Opal from two torts. That is NOT genetically possible. I know this lady had been breeding for some time, at least 15 years, but clearly she does not understand color rules, or she would know that you cannot get an agouti from two selfs, so either she has her colors wrong, or back on the ped, she had her colors wrong.
Not everyone who has been breeding for a long time understands the color genetics of the rabbits they breed.
Know all about color rules, and not saying that you don't know what to expect by following these color rules. But it's not an EXACT science. That's all I'm saying. Things pop up all the time. Heck stray white hairs in black will be a DQ even though you been following the color rules. Or white toe nails as well.
It's a good rule to follow for show colors, but show people who know the color rules also admit how hard it is to get the colors just right. If it was EXACT, it wouldn't be a challenge. And every color in the rainbow would be showing in every breed.
Karen
I think there is confusion with genotype and phenotype. The science is exact, the colors do what science says they should do, the application is not exact. The gene formula for making colors is exact. If not, you could never get predictable colors. Many breeders successfully breed certain colors with predictable results all of the time. And they perfect these colors.
You are talking about getting phenotype right for colors, what we see and what we think is perfect. Putting the right genes together makes that color, whether or not we think it is the best representation. Some colors are hard to get what we call perfect, but they are still the predictable colors. Castor is a hard color to get right. What you see may not always be the best representation, due to hidden genes, that also follow rules. If you knew those hidden genes, you could get what you want all of the time.
Pop ups do not mean that the science is not exact. The science does allow for pop ups, for solving for the x factor. But self to self will never get agouti. You can't get much more exact than that. With agouti, they can hide every possible gene, so be the scientist and find out what you have.
The fact that every color does not show in every breed shows just how exact it is. Unless someone mixed things up, I will never have a steel in a Rex. Nor a sable martin. Or a VM or BEW. They do not happen spontaneously. Those genes must be interjected into the lines.
White hairs and two nails are predictable as well, watching pedigrees and following a pattern. With enough information. They just don't come from no where. They tend to come from VM animals, BEW and brokens in the ped. Sometimes they are not genetic and are caused by the hair turning white from a scratch. You need to know your animals far enough back.
I don't have any problems predicting colors, or creating them. "Where did that comes from" situations only serve to complete the picture, not derail it.
__________ Tue Nov 20, 2012 10:42 pm __________
The main challenge is breeding all of the crap out of the lines to get what you want. My goal is to eliminate REW from my herd. I have a buck that has never produced it, and every doe will be test bred in rotation until I am satisfied that she does not carry it.<br /><br />__________ Tue Nov 20, 2012 10:58 pm __________<br /><br />I'm sorry, I'm going to let it rest. We have not had the same experiences obviously.