
Tests offered
- Aerobic culture
- Anaerobic culture
- Antibiotic susceptibility (each)
- Antibiotic susceptibility, MIC
- Blood culture
- Campylobacter sp. culture
- Clostridium perfringens culture
- Clostridium perfringens toxin typing PCR
- Fungal culture
- Gram stain
- Environmental culture
- Leptospira sp. PCR
- MALDI-TOF
- Microbial sequencing including bacterial, viral and fungal
- Mastitis culture Quarter/composite aerobic sample
- Mastitis Herd survey (>8 cows, all 4 quarters per cow)
- Mastitis Mycoplasma
- Mastitis Mycoplasma 10 samples/pool
- Bulk tank milk analysis
- Bulk tank milk analysis (quant. culture) with Mycoplasma
- Mastitis Species ID from plates slants/isolates
- Mycoplasma sp. culture
- Mycoplasma PCR (species, MG, MS, bovis, hyopneumoniae)
- Quantitative bacterial culture
- Salmonella cultures
- Salmonella enteriditis (SE) PCR
- Salmonella serotyping
- Salmonella serogrouping
- Special stains
- Water analysis for coliforms
Penn State no longer performs the anitibiotic residue testing
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Section Supervisor
Dr. Philma Muthuraj
Email: pzm5552@psu.edu
Office: 814-863-0837
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Laboratory Technicians
Jacob Kardelis
Email: jck5536@psu.edu
Office: 814-863-1257
Tammy Matthews, MLT, (ASCP)
Email: tlm8@psu.edu
Office: 814-863-1257
Traci Pierre, MT, (ASCP)
Email: tap129@psu.edu
Office: 814-863-1257
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Animal Diagnostic Laboratory
Hours: Monday - Friday, 8 a.m. - 5 p.m. After-hours submission available daily.
- Email adlhelp@psu.edu
- Office 814-863-0837
- Fax 814-865-3907
2025 Holiday Hours
- Memorial Day: May 26, CLOSED
- Juneteenth: June 19, CLOSED
- Independence Day: July 4, CLOSED
- Labor Day: September 1, CLOSED
- Thanksgiving Holiday: November 27-28, CLOSED
- Christmas Eve: December 24, OPEN 8 a.m. -12:00 p.m.
- Christmas Day: December 25, CLOSED
- Holiday Break: December 26, 29-31, OPEN 8 a.m. - 12:00 p.m.
- New Years Day: January 1, 2026 CLOSED
Animal Diagnostic Laboratory
Hours: Monday - Friday, 8 a.m. - 5 p.m. After-hours submission available daily.
- Email adlhelp@psu.edu
- Office 814-863-0837
- Fax 814-865-3907
2025 Holiday Hours
- Memorial Day: May 26, CLOSED
- Juneteenth: June 19, CLOSED
- Independence Day: July 4, CLOSED
- Labor Day: September 1, CLOSED
- Thanksgiving Holiday: November 27-28, CLOSED
- Christmas Eve: December 24, OPEN 8 a.m. -12:00 p.m.
- Christmas Day: December 25, CLOSED
- Holiday Break: December 26, 29-31, OPEN 8 a.m. - 12:00 p.m.
- New Years Day: January 1, 2026 CLOSED