Animal Health Diagnostic Laboratory

The Animal Health Diagnostic Laboratory analyzes about 400 samples per day. Many milk pregnancy and Johne’s analyses are run on samples that are already tested in the milk lab for standard DHIA component analyses. Using the same sample allows for greater efficiency both on the farm and in the lab. With one sample per cow, sample data is easily tracked throughout the entire process.

For those farms that are not on a regular testing schedule or who do not have dairy cows, Dairy One has a variety of ways to make it as easy as possible to get samples into the lab for processing.

Dairy One’s Milk Pregnancy test is now A2LA Accredited! This accreditation demonstrates that the Milk Pregnancy test is being performed according to the requirements of the ISO 17025:2017 International Standard. Dairy One’s AHDL is committed to providing every customer with the best possible testing experience and results.

Summary of Services: Animal Health Diagnostic Laboratory

 Milk PregnancyBlood PregnancyJohne'sBVD
MediumMilkBloodMilkBloodBulk Tank SupplyDHIA Milk Sample
AnimalCows, GoatsCows, Goats, SheepCowsCows (composite sample of no more than 400 cows)Cows
Min. DPB2829n/a
Min. DIM6090
Price$4.50/sample$2.50-$4.17$6.00/sample60.00 through Cornell; $45.00 through Antel Bio$6.00 through Antel Bio
KitsFree shipping: 10+ samples; $10.00 for 50-vial kit; $5.00 for 10-vial kit*Multiple options; see details under Blood Pregnancy section$5.00 for 10-vial kitKits available by requestn/a
Results InterpretationPregnant; Open; Recheck.
No charge for tests with “Recheck” results. Retest animals with “Recheck” results after 2 weeks.
Positive; Negative; Call Us(Indicates that requirements were not met).
Read comments for further instructions.
Positive; Negative; Suspect. Retest animals with “Suspect” results after 2 weeks.Positive; Negative. Retest all positive animals after 3 weeks.

*Milk Pg Kits: sample vials, preservative tablets, submission forms, shipping envelopes and shipping labels.

Milk Pregnancy Testing

Milk Pregnancy Testing

The use of milk as a medium for pregnancy testing allows you to receive more data from the samples you are already submitting for component testing.

Developed by IDEXX Laboratories, one of the world’s leading diagnostic testing manufacturers, the test works by detecting Pregnancy Associated Glycoproteins (PAGs), which are only present in a pregnant animal. The test is 98% accurate, with false-negatives being exceptionally rare.

Taking a Sample

If your herd is already testing with Dairy One, let your technician know that you would like samples submitted for pregnancy testing. If you are not on a DHIA testing program with Dairy One, please contact our Supply Department at 607-252-7540, to set up an account and order supplies.

Test Day Samples
Individual DHIA samples can also be submitted for milk pregnancy testing. If your milk samples have already been collected and you decide to test for milk pregnancy, please contact us as soon as possible at 800-344-2697.

Between Test Days: Strip-Sample Testing
Strip samples from individual cows can be submitted between test days and shipped to the lab. Test kits are available from the Dairy One Supply Department.

Submitting a Sample

Samples do not need to be refrigerated when shipped, but for best results refrigerate them during the time between sample collection and shipping.

Please include a completed copy of the Milk Sample Submission Form when submitting samples.

Dairy One provides free shipping when farms submit 10 or more samples for analysis at one time using Dairy One milk pregnancy test kits. Samples can be sent on the Dairy One Sample Transportation System or via UPS using the preprinted labels in the kit. The test costs $4.50 per sample. There is no charge for “Recheck” results.

Receiving Results

Results will be sent to you as indicated on the sample submission form. If an e-mail address is not provided, results will be sent via US Postal Service. Results will be automatically downloaded to Dairy Comp if a valid Dairy One herd code is provided. Your Dairy Records Service Specialist will also receive an email with results.  

The lab tests milk pregnancy samples Monday through Friday with the exception of major holidays, and also usually tests on either Saturday or Sunday. Once your samples arrive at the lab, you can generally expect the testing to be completed within 24 hours. If your herd is also being tested for other components in the milk lab, your pregnancy samples usually arrive in the Animal Health Diagnostics lab either on the same day or the next day. If you do not receive your results, please contact us via phone Monday through Friday, 8:00 am through 4:00 pm, at 800-344-2697, or via e-mail at ahd@dairyone.com. We may need to update our records with a current mailing address or e-mail address.

How do I interpret the results?

A “Pregnant” result indicates that the animal is pregnant.

An “Open” result indicates that the animal is not pregnant. While most milk pregnancy results provide a “Positive” or “Open” result, a small number of samples cannot provide a definitive answer as to whether or not the animal is pregnant, resulting in a

Recheck” result. A “Recheck” result indicates that the animal may be experiencing a loss of pregnancy.

Dairy One does not charge for any sample that has a “Recheck” result, as long as the sample was taken in accordance with the manufacturer’s label. Eligible animals currently must be at least 60 days in milk after giving birth, and 28 days post breeding.

Blood Pregnancy Testing

Blood Pregnancy Testing

Developed by Conception Animal Reproductive Technologies, the DG29 blood pregnancy test works by detecting Pregnancy Associated Glycoproteins (PAGs), which are only present in a pregnant animal. The test is 99% accurate. For more information, please e-mail us at ahd@dairyone.com .

Please contact our Supply Department via phone at 607-252-7540 to set up an account and order supplies.

Taking a Sample

Cross contamination (using one needle for more than one animal) can cause samples to coagulate. Please avoid this, as it makes testing the sample difficult.

Testing Options

Full Kits
Full kits include red-top blood tubes, disposable needles, needle holder, hazardous material shipping containers, shipping to the farm, and test analysis.

CodeDescriptionUnits
DGK6DG29 Complete 6 Test Kit6
DGK24DG29 Complete 24 Test Kit24
DGK48DG29 Complete 48 Test Kit48
DGK72DG29 Complete 72 Test Kit72
DGK144DG29 Complete 144 Test Kit144

Tube Kits
Tube Kits include red-top blood tubes, hazardous material shipping containers, and test analysis (needles and shipping charges to farm not included).

CodeDescriptionUnits
DGT48DG29 48 Testing Samples48
DGT72DG29 72 Testing Samples72
DGT144DG29 144 Testing Samples144
DGT288DG29 288 Testing Samples288

Submitting a Sample

Samples do not need to be refrigerated when shipped.

Please include a completed copy of the Blood Sample Submission Form when submitting samples. 

Please visit our online store for current pricing. The cost of the test is included in the cost of sampling supplies listed in the store. If you choose to use your own sampling supplies, the cost is $4.17 per sample. If you use Dairy One’s transportation network, the cost is $7.00 per use, regardless of the number of samples. Billing for blood pregnancy tests is done at the end of the month. You may also choose to pay for your sample kit when ordering it through our supply department. Sample kits can also be purchased through our online store.

Receiving Results

Results will be sent to you as indicated on the sample submission form. If an e-mail address is not provided, results will be sent via US Postal Service. Results will be automatically downloaded to Dairy Comp if a valid Dairy One herd code is provided.

The lab tests blood pregnancy samples Monday through Friday, with the exception of major holidays. Once your samples arrive at the lab, you can generally expect the testing to be completed within 24 hours. If you do not receive your results, please contact us via phone Monday through Friday, 8:00 am through 4:00 pm, at 800-344-2697, or via e-mail at ahd@dairyone.com. Your samples may not have arrived yet. Consider using the Dairy One transportation network for faster sample results.

How do I interpret the results?

Positive” result indicates that the animal is pregnant.  

Negative” result indicates that the animal is not pregnant.

Call Us” result usually indicates that the requirements for days post breeding or after giving birth were not met.

Please check the comments section of the results report for further details.

Johne's Analysis

Johne’s Analysis

Dairy One offers Johne’s analysis for cows using either a milk or blood sample. Using a milk sample for Johne’s testing allows you to receive more data from the samples you are already submitting for component testing. This test requires a special report from your Dairy Records Service Specialist to be delivered with the sample. It must accompany the lab report and be included in the sample box.

Developed by IDEXX Laboratories, one of the world’s leading diagnostic testing manufacturers, the test works by detecting the presence of antibodies associated with the disease; it does not test directly for the disease itself. Antibodies are produced by the cow as an immune response to the presence of the disease.

Taking a Sample

It is best to test for Johne’s when the cow is experiencing stress, usually associated with the pre-calving dry-off period. While most of the Johne’s samples that the laboratory receives are sampled during regular component testing intervals, samples can be submitted at any time by ordering a Johne’s test kit from Dairy One’s supply department. If your herd is already being tested with Dairy One, let your Dairy Records Service Specialist know that you would like to begin Johne’s testing. If you do not currently test with Dairy One, please contact our Supply Department at 607-252-7540, to set up an account and order supplies.

Testing Options

Test Day Samples
Individual DHIA samples can be taken on test day.

If your herd samples have already been collected and you then decide to test for Johne’s, please contact us as soon as possible at 800-344-2697 to let us know you what samples you would like tested.

Between Test Days: Strip-Sample Testing or Blood Testing
Strip samples from individual cows can be submitted between test days and shipped to the lab. Blood kits are available upon request from Dairy One’s Supply Department. Samples do not need to be refrigerated when shipped, but please refrigerate them during the time between sample collection and shipping for best results.

Submitting a Sample

Strip-sample test kits with 50 vials and paperwork can be ordered through the Supply Department via e-mail at supply@dairyone.com or via phone at 607-252-7540. The cost of the kit is $10.00, which includes the cost of shipping the kit to you. The price of the test is $6.00 per sample.

Please include a completed copy of the Milk Sample Submission Form when submitting samples. 

Receiving Results

All results are sent via USPS. We will send results via e-mail if an address is provided. Results are also automatically uploaded to Dairy Comp. We do not send results to veterinarians.

The Animal Health Diagnostics lab usually tests Johne’s samples a minimum of twice per week. Your results may be available 1-3 business days after arriving at the Animal Health Diagnostics lab. If you need your results sooner, please let us know, as we may be able to accommodate your request. If you do not receive your results, please contact us via phone Monday through Friday, 8:00 am through 4:00 pm, at 800-344-2697, or via e-mail at ahd@dairyone.com. We may have an incorrect mailing address or e-mail address on file.

How do I interpret the results?

Positive” result indicates that the animal has produced antibodies associated with Johne’s disease.

Negative” result indicates that the animal has not produced these antibodies.

Suspect” result indicates that the animal may have the disease or may have been exposed to the disease but not contracted it. Due to the nature of the antibody test, it is recommended that an animal that has tested suspect be retested to ensure that the antibodies are present from the contraction of the disease, as opposed to exposure which did not result in contraction of the disease.

BVD Testing

BVD Testing

Dairy One offers BVD testing for cows using bulk tank samples or individual DHIA samples. Analysis is performed through Cornell University’s Animal Health Diagnostic Center or through Antel Bio.

Developed by IDEXX Laboratories, one of the world’s leading diagnostic testing manufacturers, the test works by the presence of antibodies associated with the disease; it does not test directly for the disease itself. Antibodies are produced by the cow as an immune response to the presence of the disease.

Taking a Sample

BVD Tank Samples Through Cornell University’s Animal Health Diagnostic Center

The sample should be between 200-700 ml with a maximum of 400 cows contributing to bulk tank per sample. The sample should be kept cold, but not frozen.

BVD Tank or Individual DHIA Cow Samples through Antel Bio

A maximum of 400 cows contributing to bulk tank per sample
$45.00 plus shipping per bulk tank sample
$6.00 plus shipping per individual cow sample

Submitting a Sample

BVD Tank Samples Through Cornell University’s Animal Health Diagnostic Center

Samples must be submitted by a licensed veterinarian within 24 hrs of being taken. The price to analyze these samples is $60 per sample.

BVD Tank or Individual DHIA Cow Samples through Antel Bio

$45.00 plus shipping per bulk tank sample
$6.00 plus shipping per individual cow sample

Receiving Results

Our records support group can help you with any questions you may have about the sample submission process as well as questions concerning receiving your results.  Email them at support@dairyone.com.

How do I interpret the results?

Positive” result indicates that the animal has produced antibodies associated with BVD.

Negative” result indicates that the animal has not produced these antibodies. 

Due to the nature of the antibody test, it is recommended that an animal that has tested positive once be retested to ensure that the antibodies are present from the contraction of the disease, as opposed to exposure which did not result in contraction of the disease. It is recommended to take a retest sample at least 3 weeks after the initial positive sample.

FAQ

What animals can I use these tests be used for?

Milk Pregnancy: Cows and goats at least 28 days post-breeding and 60 days post-calving

Blood Pregnancy: Cows, goats, and sheep at least 28 days post-breeding and 90 days post-calving

Johne’s: Cows

BVD: Calves that are pre-colostral or over 3 months old can be tested using blood. Any cow can be tested with milk or ear notches.

How accurate are these pregnancy tests?

Milk Pregnancy: 98% accurate with very rare false-negative results

Blood Pregnancy: 98% accurate

When is the best time to test for Johne’s or BVD?

Johne’s: At high periods of stress, such as the pre-calving dry-off period

BVD: Immediately after the calf is born

How do I start testing?

Contact the Dairy One Supply Department to set up an account and order sampling supplies at 607-252-2697 or supply@dairyone.com.