MDGA Member UC Davis Testing
Carla & Josie Kirby
MDGA is proud to announce we are now providing
reduced G6S, DNA parentage & Casein testing fees!
For Questions please contact us at:
Please fill out this form for
testing your goat(s).
For Payment, go to our
or send check to :
PO Box 1534
Woodland, WA 98674
How the testing works:
Once you submit your MDGA testing
request application and forward your payment conformation to
us, the committee will request a kit(s) from Davis on your
The testing committee will then
forward that test kit to you via email once they receive it
Then follow the instructions in
the kit we forward you.
Testing requires 20-30 Hairs With Roots
Hair root from coarse, longer hair
often found over:
back of hind leg
is the preferred
sample type for goats.
Storing Hair Samples
To store the
sample, you pull the hair, place in a paper envelope
(separate envelope for each goat), and keep at room
temperature away from any chance of bugs getting to it.
Samples are good this way for up
to 10 years.
Never use plastic to store
samples, and do not refrigerate or freeze.
DNA - $35
A DNA profile—which provides allele
sizes for all microsatellite markers—is obtained, and
parentage analysis is performed. A variety of sample types
can be utilized for routine testing, including blood, hair,
semen, buccal swabs and FTA cards. Non-routine sample types
include bone, teeth, saliva, dried blood, urine and feces.
DNA is extracted from the samples, and microsatellite marker
analysis begins with the PCR procedure. In this process a
computer program compares the DNA profile of the offspring
to those of the presumed parents. A parentage analyst
reviews the results and sends the final report. If a listed
parent or parents are excluded, additional analysis is
performed including retesting of samples and the possible
use of additional DNA markers to confirm the exclusion.
Alpha S1 Casein Testing - $25
Alpha s1 Casein is one of the four casein proteins found in
goat's milk and is the most important of the four for cheese
making. The Alpha s1 Casein gene (CSN1S1) that produces the
protein shows polymorphisms which affect the amount of
protein and fat produced, with higher levels associated with
the best cheese making. Research suggests that low levels of
Alpha s1 Casein, may be associated with reduced milk
sensitivities for some people.
G6-Sulfatase Deficiency(G6S, MPSIIID) - $25
G6-Sulfatase deficiency is an inherited metabolic defect
that occurs in Nubian goats and related crosses. A mutation
in the G6-S gene renders the enzyme incapable of degrading
complex polysaccharides known as heparin-sulfate
glycosaminoglycans (HS-GAGs) which then abnormally
accumulate in tissues such as central nervous system and
viscera. Clinically, affected goats exhibit delayed motor
development, growth retardation, and early death. The
disease is inherited in an autosomal recessive fashion.
Therefore, both sexes are equally affected and two copies of
the defective gene must be present for signs of the disorder
to be observed. Breeding two carrier goats, which are normal
but each possesses a single copy of the mutation, is
predicted to produce 25% affected offspring.
All testing information property of
Davis Site. See their site for more in-depth info