rumpless gene ? (Tim this means you)

[Lauravonsmurf]

I would like more info too as I have found several breeds of chicken not in the USA of course that are rumpless breeds, darn currious now about this trait.

 

[sol2go]

popping another note into this thread:

This spring I hatched a rumpless crested cream legbar.
I have read this thread and a reference that a BYC member directed me to:
http://www.araucana.com/Rumplessness.htm

I was interested to read @tadkerson's comments re: possible effects of incubation and wonder how it may relate to this case.

While the cockerel still has no tail at 4 months, his sisters from the same hatch developed tails right away; they are offspring from the same Roo but possibly different hens.
All eggs were shipped from Texas to California. The same shipment included Marans which had a higher hatch rate than the CL.

Initially I thought his tail would develop over time, as I had purchased a CL pullet a couple of years back that did not develop a tail until after 10 weeks or so. This pullet was one of several sisters I bought; the only one that was slow to develop a tail; and her offspring have had normal tail development so far.

Any other info is appreciated.

 

[Lauravonsmurf]

I found this if it helps anyone: http://www.browneggblueegg.com/Article/Rumplessness.html

 

[sol2go]

I found this if it helps anyone: http://www.browneggblueegg.com/Article/Rumplessness.html

thanks I also read that one
I'm hoping to connect with someone who has the practical experience which might include visual assessment. While I realize it is not the most definitive, the browneggblueegg article led me to think my Roo may be incomplete dominant or recessive rumpless, rather than accidental rumpless.

It can be so much easier to differentiate what the words mean if someone has practical experience.

 

[Lauravonsmurf]

Yeah I know, maybe these will also help though: I am thinking of keeping Rumpless Bantams and I would like more info too.

http://www.genetics.org/content/30/5/403.full.pdf : On the Recessive

http://www.araucana.com/Rumplessness.htm : On the Dominate

 

[sol2go]

Thanks for the data. I did a quick skim, the scoliosis component caught my eye, that would be sad if he twists like that, interesting that their gait doesn't reflect it.

Are there known problems with the rumpless bantams?

I have always been interested in the Araucanas but reached my rooster limit a long time ago...of course this physical condition is a new twist in the plan..as if there could be an orderly chicken plan...

 

[Lauravonsmurf]

Well the recessive gene seems to have a higher mortality rate too, and extra ribs. I am a little concerned about the lack of oil glands, & I want more info on how that effects flock health and feathers. I do not know what bantam breeds are in the USA with this trait besides the Araucana, I thought the Quail tailed Chabos where beyond cool though I found on the net.

http://www.aviculture-europe.nl/nummers/12E02A13.pdf Just some rumpless eye candy & breeds.

 

[sol2go]

Well the recessive gene seems to have a higher mortality rate too, and extra ribs. I am a little concerned about the lack of oil glands, & I want more info on how that effects flock health and feathers. I do not know what bantam breeds are in the USA with this trait besides the Araucana, I thought the Quail tailed Chabos where beyond cool though I found on the net.

http://www.aviculture-europe.nl/nummers/12E02A13.pdf Just some rumpless eye candy & breeds.

Such a different look. I thought for sure this guy would get tail feathers, I guess I'm still not over that. Now my focus is on how healthy is he? Seems fine, is the boss of a similarly aged group of 9 which includes males and females. At 4 months, he has been actively mating for awhile now. I had to add an older pullet so he would leave the younger ones alone. So his balance seems fine and he is a growing well. He was born with a distinctive personality, very friendly and chatty.

 

[Lauravonsmurf]

Well if he seems healthy & you like him, start a breeding project... if he is carrying the dom. gene you should know after a few clutches as you are bound to get a few tailess chicks, if he is rec. you will have to do backcrossing the F1s to him for it to show quicker & if I have understood "accidental" you'll only get normal tailed offspring.

 

[sol2go]

that is more or less what I've heard.
Thanks for your input =)
He is part of a small breeding project, so it is a tough call for me to figure out where he is in the line-up, including "rooster" space.

The Japanese bantams you directed me to have such a severe tail angle it seems interesting that they might have no tail at all.