The Circle H Laboratory is an accurate and timely resource offering services in the areas of animal disease diagnostics, food safety testing, raw milk testing, and DHIA component testing. We are certified with the Texas Department of State Health Services and National Dairy Herd Improvement Association (DHIA).  We participate in proficiency testing with the American Proficiency Institute (API), USDA Market Administrator, Texas Department of State Health Services, DHIA, and Wibby Environmental.

 

Pick your area of interest to learn details about our testing abilities:

        Animal Diagnostic                Food Safety               Raw Milk              DHIA

   Submission Forms               Certifications

 

 

Our laboratory offers the following services in the area of animal diagnostic testing:

  • Bacteriology - We are proficient at identifying organisms and determining their significance in cattle and swine tissues, bedding, equipment, milk, semen, water, environment, feedstuffs and others.  We are able to isolate and save organisms that may need further characterization, such as DNA fingerprinting or for use in autogenous vaccine production.

  • BioPRYN Pregnancy Detection - This test is a non-invasive, quick response, 97% accurate, embryo safe, quality assured pregnancy test for livestock (cattle, sheep, elk, goats, bison and deer).  To learn more visit www.biotracking.com/benefits.php

  • Boar Semen - We routinely offer analysis of boar semen.  Our package of tests includes: standard plate count, bacterial identification, total sperm cell count and motility/morphology estimates.  Environmental swabs of collection and laboratory areas are screened to ensure effective sanitation methods.  We can report results against our database. 

  • BVD Persistent Infection (PI) testing - Our methodology includes both ELISA antigen capture (ACE) methodology or Real Time PCR detection.

  • Mastitis Identification - We are proficient at identifying the cause of mastitis in milk samples.  Our reports can be customized and can be uploaded into your dairy management software (Dairy Comp 305 and DHI Plus).  We can help you with periodic reviews to select the correct mastitis therapy programs for your operation.

  • Packed Cell Volume - We routinely measure packed cell volumes on neonatal swine blood to assess iron levels. 

  • PRRS PCR Real Time Testing - Our fast turn-around time is a important benefit for swine farms that want to maintain and verify PRRS negative status. 

  • Serology - We are able to process blood samples for further serological testing.  We can split samples and can hold large volumes of serum for diagnostic projects that may require scheduled submission to other laboratories.  A list of serology that can be performed in-house includes: PRRS ELISA, Mycoplasma ELISA, APP ELISA, SIV ELISA (H3N2 and H1N1)

  • Serum Protein Testing - Our laboratory tests serum protein levels utilizing a refractometer.  Our reports help characterize if your calf colostrum program is on-target.

 

 

Our food safety testing services utilize AOAC performance tested methods for accurate and repeatable results.  We provide certificates of analysis on request either in hard copy or via a pdf file. 

  • Aerobic Plate Count (APC)

  • Aflatoxin Screening

  • Antibiotic Screening

  • Coliforms

  • E. coli

  • E. coli O157:H7

  • Listeria species

  • Salmonella species

  • Staph aureus

  • Yeast and Mold

 

 

 

We offer a full range of raw milk tests.  Whether you are a dairy producer or dairy processor, we can fulfill all of your testing needs.

  • Antibiotic Screening

  • Antibiotic Confirmatory Testing

  • Antibiotic Sensitivity

  • Aflatoxin Screening

  • Bulk Tank Cultures

  • Coli Counts

  • Component Testing - butterfat, protein, somatic cell count (SCC), lactose, total solids, MUN, solids not fat

  • E. coli Counts

  • Freezing Point

  • Laboratory Pasteurized Counts (LPC)

  • Mastitis Identification

  • Mycoplasma Cultures and PCR

  • Sediment Test

  • Somatic Cell Counts (DMSCC or ESCC)

  • Standard Plate Counts (SPC)

  • Staph Only Cultures

  • Strep Cultures

 

 

Whether you use our Circle H Testing Service or an independent tester, our fully certified, independent DHIA laboratory will get reliable results to you in a timely manner.

  • Component Testing - includes all of the following at one competitive price: fat, protein, SCC and MUN

  • Clean, biosecure vials and racks delivered to the farm

  • Ability to work with any Dairy Record Processing Center (DRPC) and DHIA State Affiliation

 

Sample Submissions

Do you have samples com'in our way?  Print off one of our forms to help communicate what we can do for you today!  Our shipping address is listed on each form.  Additionally, you can click the "label" button for a generic mailing label for your convenience. 

                Cattle Serology                                                                   Submission

                                                           Label

 

Certifications

We don't mean to brag, but we are proud of our accomplishments!  Below are some of our certifications that may be of interest.  Just as we have these framed and hung on our laboratory wall, we have "hung" them here as well. 

 

 API            Johne's Serology              Johne's Milk             TX DSHS         QCS