[Alpacasite] Re: Detecting Genetic Collagen Ear Defect

Yes, these archives are difficult to search. I did find some references, but they were
sufficiently vague. It is a line (or more) of huacaya, but in several places around the
country. Seems these alpaca get around!

I hope that there wouldn't be a reluctance to discuss how to properly check for health and
conformation in public, but perhaps there is.

Assuming this is a single dominant gene, many of the progeny are just fine - and there are
some nice animals. Just looking for some help in detecting the milder form of expression,
as it is seems heritable in the more severe form, and any information to confirm that is is a
case of simple dominance.

Thanks and Best Regards,

Jeff Groene
Cranston, RI
a749970@cox.net

--- In Alpacasite@yahoogroups.com, Tim Wilson <tpwilson2@a...> wrote:
>
> jeff,
>
> Thanks for the clarification. I believe this has been discussed on our
> list before. Unfortunately I am a poor researcher and the archives seem
> rather difficult to search. I seem to recall that something like this
> has occured in a line of huacayas originating somewhere in the
> NE(nothing disparaging against huacaya but it is what I recall).
> Hopefully someone might contact you privately as many are ruluctant to
> share that type of information publically. If I am incorrect and the
> discussion was about a line of suri, I apologize ahead of time.
>
> Good luck on your population.
>
> Tim Wilson
> Sterling Forrest Alpacas
> Chagrin Falls OH
>
> ih_james wrote:
>
> >Thanks Tim. Sorry for the lack of infomation - we are located in Rhode Island. The
farm
> >name is still under discussion. The barn, fencing and other systems are coming
together
> >nicely - it's time to get them populated!
> >
> >We have been inspecting animals and reading/gathering supplies and equipment for
about
> >six months now. Have personally looked at a couple hundred animals to this point,
> >seriously considered a dozen, and this particular topic has come up several times.
> >
> >Unfortunately I have only been able to learn what I related in the post. There doesn't
seem
> >to be anything in the OSU archives. A local vet and some of his clients have been
gracious
> >enough to give us some hands-on experience with various procedures, but he has
been
> >unable to help with this.
> >
> >Best Regards,
> >
> >Jeff Groene
> >Cranston, RI
> >a749970@c...
> >
> >
> >--- In Alpacasite@yahoogroups.com, Tim Wilson <tpwilson2@a...> wrote:
> >
> >
> >>Jeff,
> >>
> >>Never too many questions and I don't think you are making unwarrented
> >>assumptions. What might help in responding is to give your farm name (if
> >>applicable) and a city/state location. This might help someone guide you
> >>to someone in your area that has had experience in your problem.
> >>
> >>Good Luck.
> >>
> >>Tim Wilson
> >>Sterling Forrest Alpacas
> >>Chagrin Falls, OH
> >>
> >>ih_james wrote:
> >>
> >>
> >>
> >>>As a relative newcomer to the industy I haven't inspected that many alpaca ears,
but
> >>>
> >>>
> >would
> >
> >
> >>>be interested in any advice on examining alpacas for the collagen-type genetic ear
> >>>
> >>>
> >defect.
> >
> >
> >>>Apparently, it is not always clearly expressed in some animals that have passed this
> >>>
> >>>
> >defect
> >
> >
> >>>along.
> >>>
> >>>I have read descriptions of narrowed ear canals and various lumps, bumps, and
> >>>
> >>>
> >swelling.
> >
> >
> >>>There are pictures of animals with severe expression that show obvious deformity,
but
> >>>
> >>>
> >of
> >
> >
> >>>more concern to me is detecting animals that have inherited the condition and
exhibit
> >>>
> >>>
> >only
> >
> >
> >>>a mild expression, but are apparently capable of producing offspring with more
> >>>
> >>>
> >extreme
> >
> >
> >>>problems. Also, does this condition resemble scarring as a result of aural
hematoma?
> >>>
> >>>
> >Is
> >
> >
> >>>there any way to tell the difference? Is there any evidence that this condition
results in
> >>>more ear infections or other ear problems?
> >>>
> >>>Information seems a bit hard to come by, but what I have read is that this is
suspected
> >>>
> >>>
> >to
> >
> >
> >>>be a simple dominant gene, with varying degrees of expression. Is there any new
> >>>information that it is a more complicated inheritance, or any evidence that it is
gender
> >>>specific? I have not seen any examples of a mother with mild or severe expression
> >>>
> >>>
> >that
> >
> >
> >>>have passed this along.
> >>>
> >>>I did some limited searching of the archives on this site, but didn't find much. Was
> >>>
> >>>
> >there a
> >
> >
> >>>month/year when such discussions took place?
> >>>
> >>>Too many questions? 8-)
> >>>
> >>>As I said, I am a newcomer to alpacas. If I am making any unwarranted
assumptions
> >>>
> >>>
> >or if I
> >
> >
> >>>seem to have bad information please feel free to correct - I'm not proud. Also feel
> >>>
> >>>
> >free to
> >
> >
> >>>contact me off-site.
> >>>
> >>>Thanks,
> >>>
> >>>Jeff Groene
> >>>a749970@c...
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
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> >>>http://aaalpacas.com
> >>>
> >>>
> >>>
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> >
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