UC Davis Horse Tests
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UC Davis offers a variety of clinical diagnostic testing for horses. The links below contain specific information including cost, turnaround time, and sample submission.
*In many cases sample submissions and testing requests must be made by a veterinarian.
For additional testing options or related questions, contact the respective laboratories (see box at right). For questions about other equine-related veterinary services, contact the UC Davis veterinary hospital large animal clinic at (530) 752-0290.
Frequently Used Equine Tests
Complete Blood Count (CBC) and Chemistry/Biochemistry Testing
Corynebacterium pseudotuberculosis (pigeon fever) - CAHFS, UCD veterinary hospital Clinical Laboratory. Learn more about pigeon fever in horses.
Equine Blood Type and Antibody Screen (including neonatal isoerythrolysis (NI))
Equine herpesvirus 1 - 5 (PCR Lab); EHV-1 (CAHFS) - Learn more about EHV-1.
Equine influenza virus (HI-A2, Alaska ’91, HI-A2, Kentucky ’07) - Learn more about equine influenza.
Equine Protozoal Myeloencephalitis (EPM) - SarcoFluor™ and NeoFluor™ - Learn more about equine protozoal myeloencephalitis.
Fecal float (also available here)
Fragile Foal Syndrome (FFS) Type 1 genetic test - Learn more about fragile foal syndrome here.
Myosin-Heavy Chain Myopathy (MYHM) genetic test (immune-mediated myositis (IMM) and non-exertional rhabdomyolysis). Learn more about MYHM/IMM.
Parentage/Genetic Marker report
Polysaccharide Storage Myopathy Type 1 (PSSM1) genetic test - Learn more about polysaccharide storage myopathy (including current information about PSSM2 testing).
Quarter Horse & Related Breeds Disease Panel (5-panel plus) (If testing is for registration purposes, please contact breed organizations directly.)
Salmonella (also available here) - Learn more about Salmonellosis in horses.
Additional Equine Tests
Equine Diagnostic PCR Panels
Available equine diagnostic PCR panels (most also offered as individual tests):
- Equine Neurological Panel: Equine herpesvirus 1, Borrelia burgdorferi, Sarcocystis neurona, Neospora hughesi/caninum
- Equine Respiratory Panel: Equine herpesvirus 1, equine influenza A (H3N8), equine herpesvirus 4, Streptococcus equi subsp equi, equine rhinitis A virus, and equine rhinitis B virus
- Equine Lower Airway Panel: Streptococcus equi subsp zooepidemicus, Actinobacillus equuli, Klebsiella pneumoniae, Rhodococcus equi, Corynebacterium pseudotuberculosis, Coccidioides immitis/posadasii, Aspergillus fumigatus
- Equine Standard GI/Diarrhea Panel: Equine coronavirus, Clostridium difficile toxins A and B, Lawsonia intracellularis, Neorickettsia risticii, Salmonella spp
- Foal & Neonate GI/Diarrhea Panel: Clostridium difficile toxins A and B, equine coronavirus, Lawsonia intracellularis, Neorickettsia risticii, Salmonella spp, Cryptosporidium spp, equine rotavirus, Rhodococcus equi, Clostridium perfringens (antigen and toxins CPA, CPB, CPB2, netF, CPE)
- Equine Vector-borne Panel: Anaplasma phagocytophilum, Bartonella spp, Rickettsia spp, Borrelia burgdorferi
- Fever of Unkonwn Origin Panel (Swab): Equine herpesvirus 1 & 4, equine influenza A (H3N8), Streptococcus equi subsp equi, equine rhinitis A & B viruses, Streptococcus equi subspecies zooepidemicus, Rhodococcus equi
- Fever of Unkonwn Origin Panel (Blood): Anaplasma phagocytophilum, Neorickettsia risticci/N. findlayensis, Equine herpes, virus 1
- Fever of Unkonwn Origin Panel (Feces): equine coronavirus, Neorickettsia risticii/N. findlayensis
- Standard Equine Abortion Panel: Amycolatopsis spp, Crossiella equi, Escherichia coli, equine herpesvirus 1, Pantoea agglomerans, Klebsiella pneumoniae, Leptospira spp, Panfungal, Pseudomonas aeruginosa, Streptococcus dysgalactiae subsp equisimilis, Streptococcus equi subsp zooepidemicus
- Equine Supplementary Abortion Panel: Actinobacillus equuli, equine arteritis virus, Salmonella spp, Staphylococcus aureus (MRSA)
- Equine Ocular Panel: Pseudomonas aeruginosa, Aspergillus fumigatus, Staphylococcus aureus (Methicillin resistant), Staphylococcus aureus (not Methicillin resistant), Staphylococcus epidermidis, Streptococcus equi subsp zooepidemicus, equine herpesvirus 2 & 5, Fusarium solani
- Antibiotics/Anthelmintics (Beta-lactam Screen, Macrolide Endectosides Screen, Praziquantel)
- Electron Microscopy (Direct EM, Thin section EM - Fixed tissue, Thin section EM - wax histoblocks)
- Equine Chemistry/Toxicology/Pharmacology Tests (Anabolic steroids, NSAIDs, Nutritional Analysis, Nutritional Supplement Testing, Performance Horse Testing, pK Analysis, Pre-purchase drug screen, Fluixin, Ketoprofen, Phenylbutazone, TCO2, TOBA Protocol testing)
- Failure of passive transfer, Immunoglobulin (IGG) quantitation (Radial immunodiffusion (RAD))
Amoebal/Fungal Tests
- Acanthamoeba
- Balamuthia
- Coccidiomycosis (valley fever)
- Fungi (culture, ID, dermatophyte culture, KOH wet mount), Fungal culture and identification
- Naegleria fowleri
Bacterial Tests
- Avibacterium paragallinarum
- Bacteria (aerobic culture, anaerobic culture, bacterial aerobic identification, bacterial anaerobic identification, Gimenez stain from tissue smear), E. coli (ELISA) - K99, MIC Antimicrobial Test, aerobic & anaerobic (blood) culture and sensitivity, Mycobacterium culture and sensitivity, urinalysis
- Brucella
- Campylobacter culture
- Chlamydophila
- Clostridium (botulinum, chauvoei, difficile, novyi, perfringens, septicum, sordellii) - Learn more about Clostridium perfringens in horses.
- Contagious equine metritis - Learn more about CEM.
- Leptospira (IHC, MAT - L. bratislava, L. canicola, L. grippotyphosa, L., hardjo, L. icterohemorrhagiae, L. pomona, PCR)
- Listeria (IHC)
- Rhodococcus equi - Learn more about Rhodococcus equi.
- Treponema
Biopsy/Histology/Necropsy
Genetic Tests
Breed-specific genetic testing panels
- Appaloosa Panel 1
- Appaloosa Panel 2
- Arabian Health Panel
- Friesian Health Panel
- Quarter Horse & Related Breeds Disease Panel (5-panel plus) (If for registration, contact breed organization directly.)
Equine coat color genetic testing - panels
- Full color/pattern panel
- Horse coat color panel
- Red factor and agouti panel
- Shetland pony coat color panel
- White pattern panel 1
- White Pattern panel 2
Equine coat color genetic testing - individual tests
- Agouti (Bay/Black)
- Appaloosa Pattern-1 (PATN1)
- Brindle coat texture
- Camarillo white (W4)
- Champagne
- Cream
- Dominant White Mutations - W5, W10, W13, W20, W22
- Dun dilution
- Gray Presence/Absence, Gray Copy Number
- Leopard Complex & Congenital Stationary Night Blindness - Learn more about CSNB.
- Lethal White Overo - Learn more about LWO.
- Mushroom
- Pearl
- Red factor
- Roan zygosity
- Sabino 1
- Silver
- Splashed White Mutations (SW1-8)
- Tiger Eye
- Tobiano
Equine genetic disease testing - individual tests
- Androgen Insensitivity Syndrome (AIS)
- Cerebellar Abiotrophy (CA) - Learn more about cerebellar abiotrophy in horses.
- Congenital Myotonia (CM) in the New Forest Pony
- Congenital Stationary Night Blindness (CSNB2) in Tennessee Walking Horses - Learn more about CSNB in horses.
- Connemara Pony Hoof Wall Separation Disease (HWSD) - Learn more about HWSD.
- Distichiasis in Friesians - Learn more about distichiasis in Friesian horses.
- Embryo Pre-Implantation Genetic Diagnosis
- Equine Familial Isolated Hypoparathyroidism (EFIH) in Thoroughbreds - Learn more about EFIH.
- Equine Juvenile Spinocerebellar Ataxia (EJSCA)
- Foal immunodeficiency syndrome (FIS) - Learn more about FIS.
- Fragile Foal Syndrome (FFS) Type I - Learn more about FFS.
- Friesian Horse Dwarfism - Learn more about dwarfism in Friesian horses.
- Friesian Horse Hydrocephalus - Learn more about hydrocephalus in Friesian horses.
- Glycogen Branching Enzyme Deficiency (GBED) - Learn more about GBED.
- Hereditary Equine Regional Dermal Asthenia (HERDA) - Learn more about HERDA.
- Hyperkalemic Periodic Paralysis (HYPP) - Learn more about HYPP.
- Junctional Epidermolysis Bullosa (JEB1) in Belgians - Learn more about JEB1.
- Junctional Epidermolysis Bullosa (JEB2) in Saddlebreds
- Lavender Foal Syndrome LFS - Learn more about LFS.
- Malignant Hyperthermia MH - Learn more about MH.
- Multiple Congenital Ocular Anomalies (MCOA)
- Myosin-Heavy Chain Myopathy (MYHM) - Learn more about MYHM.
- Naked Foal Syndrome in Akhal-Teke
- Occipitoatlantoaxial Malformation OAAM - Learn more about OAAM.
- Ocular Squamous Cell Carcinoma (SCC) - Learn more about ocular SCC.
- Polysaccharide Storage Myopathy (PSSM1) - Learn more about PSSM.
- Severe Combined Immunodeficiency (SCID) - Learn more about severe combined immunodeficiency in horses.
- Skeletal Atavism
- SynchroGait®
Parasite Tests
- Cryptosporidia (ELISA, smear) - Learn more about Cryptosporidiosis in horses.
- Ectoparasite identification
- Endoparasite/Ectoparasite identification (Exotic)
- Parasites (blood-borne, intestinal, ectoparasites)
- Toxoplasma gondii (fecal float, IHC, ToxoFluor™, CSF Fluid Analysis)
Toxicity/Deficiency Tests
- Algae toxicities (Anatoxin-A, Cylindrospermopsin, Domoic Acid, Microcystins, Saxitoxin)
- Cobalt confirmation
- Fluoride
- Fungi/mold toxicities (Amanitin, Mycotoxin)
- Glycerol
- Heavy metals
- Inorganic Compounds
- Ionophores screen
- Monensin in formulated feeds
- Nutrition/Trace Elements
- Organic anions
- Pesticides
- Plant toxicities
- Speciated arsenic
- Toxicology
Viral Tests
- Equine coronavirus - Learn more about equine coronavirus.
- Equine infectious anemia virus - Learn more about EIA.
- Equine rhinitis virus (A&B) - Learn more about equine rhinitis viruses.
- Equine viral arteritis
- Rotavirus qPCR, ELISA - Learn more about equine rotavirus.
- Vesicular stomatitis virus - Learn more about vesicular stomatitis virus.