Legacy began in an effort to raise awareness among Dexter breeders of imported bulls/semen of animals bred from the English upgrade/appendix registry. The US dexter associations at no time in their history ever permitted upgrading(outcrossing). A Legacy founder discovered these upgraded bloodlines and their overwhelming presence in the US registrations. US breeders had never been advised of the upgraded/outcrossed bloodlines and the traditional foundation pure bloodlines in the US were disappearing at an alarming rate.
Breeders interested in preserving these bloodlines were required to DNA genotype their cattle and to parentage confirm their calves to maintain integrity in the preservation effort. UCD-VGL was the choice for this testing. Legacy also worked to make a DNA record of all the oldest Dexters in the US using donated funds. As the DNA database and interest in the preservation effort grew Legacy began to expand the testing and registration program to all Dexter owners.
Legacy was determined to provide the least expensive testing at the most experienced laboratory for all available tests at one location. Legacy was first to establish a genotype database registry for Dexter cattle in the western hemisphere. Legacy was first to provide all tests at one location. Legacy negotiated with A2 Corporation to bring the A2 test to American breeders via UCD-VGL, and did the same thing with the PHA test, and then polled testing and casein tests. Legacy secured contract pricing with UCD-VGL that was less than half what breeders were paying at other laboratories, and effectively forced other labs to reduce their pricing. Legacy then set out to give breeders the ability to test direct with UCD-VGL with affiliated contract pricing and worked with UCD to develop and implement Legacy's idea. Today, ALL Dexter groups are now using UCD-VGL for testing, another goal accomplished by Legacy. Legacy has focused on the best interests of the Dexter breed and it's owners achieving amazing innovative success in a short period of time. Legacy will continue to work to the interests of Dexters and their owners.
Legacy tests with the Veterinary Genetics Laboratory, Davis Campus, University of California.
UC Davis developed the DNA technology for cattle and began testing in the 1950's. Over the decades they have tested all breeds of cattle and maintained samples and databases for owners, groups, and associations.
UCD-VGL enjoys a world-wide reputation for excellence. They are professional, friendly, and accessible. UCD-VGL reports DNA markers typed with microsatellite technology. They routinely test and report on 16 markers, more than any other cattle testing laboratory. The ISAG names and requires that 11 markers be reported by all laboratories. The additional 5 markers used by UCD-VGL are markers from the cattle genome determined to be the most unique which offers more options to qualify animals for parentage.
A legacy participant should use the Services Application. Complete the application by providing required information for the test and/or registration. Upon completion the services application is automatically sent to the Legacy registrar where the information is entered into the UC-Davis database. Completed test forms are generated and emailed to you in PDF format. If you have not received a reply to your request within 24 hours of submitting your Services Application please email inquiry to . Once you receive the test forms download the file and print the forms, attach the tail hair sample, mail to the UCD- Veterinary Genetics Laboratory address on the form.
When the test(s) are completed the results are emailed and reported in PDF format. Download the test results and if desired save an electronic copy and/or print a hard copy for your records. If the completed test is a DNA genotype the tested Dexter is automatically recorded in the Legacy genotype database registry. The registration number is entered in the Legacy Dexter Cattle Registry and published in the online pedigree and an electronic copy of the registration certificate is emailed in PDF format to the owner of the tested Dexter. Hard copies are mailed at the end of each month to participants. Payment for tests may be made by check or by Paypal. Paypal payments are made to:
DNA GENOTYPE $25.00
All DNA genotyped Dexters are included in the Legacy genotype registry with emailed certificate for $5.00 database registration fee.
MILK PROTEIN TESTS
A2 Beta Casein Milk Test $20.00 - Beta Casein (A2) is an important gene for milk production traits. The VGL test identifies the 2 most common variants: A1 and A2. The A2 variant has been shown to have a positive association with milk yield and protein content. The A2/A2 genotype is also considered to have positive effects on human health.
A2 milk is natural milk. It is the milk that all humans and animals produced in nature. At some point in time a mutation occurred in cattle . . now identified as A1 beta casein. Research on A1 milk has determined it may be responsible in part for coronary heart disease (more so in men than women), diabetes, autism, and mental disorders. An excellent book on the A2 research and debate is: Devil in the milk by Keith Woodford, available at most book retailers as well as Abebooks.com (One of the largest used book outlets in the world).
Kappa Casein Milk Test $25.00 - is an important gene for protein yield and percentage in milk. The VGL test identifies the 2 most common variants A and B. The A variant and AA genotype are associated with higher milk production. The B variant and BB genotype are associated with increased milk protein and casein content, and better cheese yield. Relative to protein content and cheese production, BB is the most favorable genotype, AB is intermediate and AA is the least favorable.
Beta Lactoglobulin Milk Test $25.00 - is the major whey protein gene. The VGL test identifies the 2 most common variants A and B. The A variant is associated with increased milk yield and whey protein content. The B variant is associated with increased casein and fat content and is favorable for cheese production.
This test determines whether your Dexter is a carrier of the genetics of dwarfism. The results are reported as carrier or non-carrier.
PHA $20.00 ( Pulmonary Hypoplasia with Anascara )
This is a lethal gene in Dexters which can cause early abortions or deformed calves unable to survive at birth.
Polled Status $20.00
From the time when livestock was first domesticated, modifications to the wild types have been selected both for animal husbandry and aesthetic reasons. Unique and large horns define cattle breeds such as Texas Longhorn, Highland Cattle and Ankole Watusi. However, in modern times many cattle are maintained in more crowded conditions such as barns and small fenced pastures where polled phenotypes are more desirable for both beef and dairy breeds.
Recently, candidate mutations associated with polled phenotype in European breeds of cattle were found. There are 2 independent origins of polled, one found in Holstein-Friesian and Jersey breeds (Pf), the other in many European breeds of Celtic origin (Pc) such as Angus, Blonde d’Aquitaine, Dexter, Limousin, Charolais, and Hereford, among others. Polledness is dominant; a polled animal can have one or two copies of the gene. All offspring of a bull with 2 copies of polled (homozygous) will be polled. Genetic testing is a cost-effective means to determine if a polled animal has 1 or 2 copies of the gene.
The Veterinary Genetics Laboratory offers a test for the polled gene to assist breeders in selecting cattle that have 2 copies of Polled gene. Test results are reported as follows;
H/H HORNED. No copies of either Polled molecular marker are present.
Pf/H POLLED. One copy of the Polled-Friesian molecular marker is present. At least 50% of the offspring will be polled
Pf/Pf POLLED. Two copies of the Polled-Friesian molecular marker are present. All offspring will be polled.
Pc/H POLLED. One copy of the Polled-Celtic molecular marker is present. At least 50% of the offspring will be polled.
Pc/Pc POLLED. Two copies of the Polled-Celtic molecular marker are present. All offspring will be polled.
Pc/Pf POLLED. One copy of Polled-Celtic and 1 copy of Polled-Friesian molecular markers are present. All offspring will be polled.
Color testing $20.00
You may test your Dexter for the status of black, red, or dun. Some black cattle are homozyous for the color black and carry no recessive color or dun. Some carry red or dun as recessives.
The genetic tests for chondrodysplasia, PHA, polled, and the colors red or dun may be batched from one sample at the following price: First test $20.00. . . . each additional test $10.00. ( All five tests - $60.00 total).
For Legacy testing or registration services use the Services Application.
ALL TESTS ARE PERFORMED ON TAIL HAIRS FROM YOUR COW'S TAIL SWITCH. IT IS IMPORTANT TO PULL THE TAILHAIRS IN SUCH A MANNER THAT YOU GET THE ROOTS/FOLLICLES ATTACHED. THE DNA IS EXTRACTED FROM THE FOLLICLES. THE BEST METHOD TO ASSURE YOU HAVE GOOD ROOTS ON THE SAMPLE IS TO GATHER THE TAIL SWITCH IN ONE HAND AND A SMALL CLUMP OF HAIR IN THE OTHER AND JERK UPWARDS TO PULL OUT THE HAIRS. YOUR HANDS SHOULD BE CLEAN OR GLOVED AND THE TAIL SWITCH SHOULD BE AS CLEAN AS POSSIBLE. ONCE THE HAIRS HAVE BEEN PULLED PLACE THEM IN AN ENVELOPE IMMEDIATELY SO THEY DO NOT COME IN CONTACT WITH DIRT OR MANURE OR OTHER CONTAMINANT. BE ESPECIALLY CAUTIOUS THAT THE ROOTS DO NOT TOUCH ANYTHING THAT COULD CONTAMINATE THE SAMPLE.
For questions or further information email: