Alpacas For Sale offers free listings of your alpacas for sale
and your stud males.
And you can have your animals displayed automatically on your own
website!
Search the Alpacas For Sale database for the alpaca the meets your
criteria - male or female, huacaya or suri, white or coloured.
What about a
stud male to use over
my hembras.
There's a range of boys to choose from.
The Profile section allows you to describe your stud and enter
details of your alpacas. You can load your alpaca's image and list them
for sale or stud services.
The Links page has some useful links to alpaca associations,
messageboards and studs.
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July, 2006
Welcome to the Alpacas For Sale website. You are probably here because we are
offering free listing of your alpacas for sale. Obviously,
running this website incurs expenses, and it is hoped that these expenses can
be recovered by advertising and donations. So if you find this service useful
please consider a donation, or if you wish to improve your stud's profile
then contact us for our
extremely inexpensive advertising rates.
I have read with much interest the discussion of
line breeding on the AAA
Forum. I think it's important to note that the purpose of any breeding
program is to
breed animals that are homogenous for certain desirable traits. The breeding
coefficient mentioned is a measure of the percentage of genes
in the offspring that are derived from the 'original'. As you approach 100%
you can expect most of the genes to be derived from the 'original'. If the
'original' was homogenous, for a trait, then the offspring will also be homogenous,
but if we started with an heterogenous animal, then we have one chance in four
of getting the desirable trait to be homogenous. This is further complicated if
we have multiple heterogenous genes. And if we have heterogenous genes on the same
but opposite chromosome, then we need crossover to occur in order to get an
homogenous offspring for both genes. If these genes are close together on the
chromosome,
then we are trying to select for a very small percentage of possible outcomes.
The importance of
homogenous genes is in the predictability you get with regard to future offspring.
Take a suri as a simple case. If one of the parents is an homogenous suri,
then ALL the offspring will be suri. The suri is the result of a single gene, so
breeding homogenous suris is a relatively simple matter. Where the trait being
bred for involves several genes, then the desired result will be exponentially
harder to achieve. I mean exponentially in the literal sense. If only one
heterogenous chromosome
is involved then you have a 25% chance of the desired genes being the ones caried.
If you have 5 chromosomes involved (that contained heterogenous genes in
the 'original')
then only one in 1024 animals with a breeding
coefficient approaching 100% will be homogenous for the desired trait(s). And
if there were another 5 chromosomes containing undesirable recessive genes, then
you would
get one progeny in one million with the desired genetic makeup. Culling
would allow you to remove some animals before the one million mark is reached, but
consider how many animals you would need to devote to this sort of program
BEFORE you start. | |
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