SAMPLE
HANDLING
For Canine DNA Research at the University of
Missouri
Blood Sample - The ideal sample for DNA extraction is
5-10cc’s of whole blood, in purple-topped (EDTA) tubes. For very small dogs or
puppies, 3ccs should be sufficient. The blood sample needs only to be put in
the tubes and rocked gently a few times to distribute the anticoagulant - do
not spin, extract serum, or anything further. Refrigerate if the sample is
being held for any time before shipping.
Frozen Semen - If there is frozen semen stored from sires
or affected dogs, DNA can be extracted from it. Please send 2 straws. They do
not need to be shipped frozen, but do pack them in a crush-proof container.
Tissue Sample - Upon death of the dog, donating an organ
will provide an endless supply of DNA for research. Please discuss this with
your vet ahead of time if you intend to do this. (If the dog is to be
euthanized, have a blood sample pulled first, if possible, and send both
samples.) First choice is spleen, second choice kidney, and third choice is
liver (only a portion is needed, not the entire liver). One tissue sample is
sufficient. Have the organ removed as soon as possible following death, place
into a labeled freezer bag, place that into a second bag, freeze, and ship.
Label sample with the following;
call name - owner’s last name
(If samples from several
dogs are sent together, number samples and forms)
An Individual Dog Information form
should be completed, and a pedigree
copy must be included with the sample to tie it in with the correct
family. If the dog is not affected but is a relative of an affected, please
indicate the relationship.
Shipping - Ideally the sample should be shipped immediately
(with a tissue sample make certain it is completely frozen first). If samples
are held for a day or over a weekend, blood must be refrigerated, and tissue
samples must be kept frozen. Ship via overnight delivery (US Mail, UPS, or
FedEx). Do not send on a Friday - there will not be anyone to accept
the delivery on a Saturday, and the sample could be unusable by Monday. Pack in
a small insulated container (most vets have these for shipping samples to
labs), with one or more cool packs - it is important that blood samples be kept
cool but not frozen, and tissue samples be kept as frozen as possible.
The delivery
address is;
Dr. Gary Johnson - (Breed of Dog) DNA Research
320
Connaway Hall
University of Missouri
Columbia, MO 65211
If you need clarification, or have any questions
about any of these procedures, please contact Liz Hansen by phone
(573-884-3712), email
(HansenL@missouri.edu), or regular mail (321 Connaway Hall, University
of Missouri, Columbia, MO 65211). Liz
is Dr. Johnson’s Coordinator of Veterinary Information, and can help with any
questions you may have.
Thank you for your cooperation and participation!