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Meet our Poultry Team of Experts

The passion you will find at Huvepharma is fueled by our team of veterinarians and nutritionists working together to deliver best-in-class service to support customers’ needs.

Poultry Professional Services Team


David D. Smith, DVM, MS
Professional Veterinary Services Manager, Poultry

Dr. Smith has over 25 years’ experience in poultry health. His main area of expertise is in poultry vaccines and he has experience in all areas of the poultry health business operations, including technical support, marketing, and sales management. In addition, he has experience with research and development, vaccine production, and regulatory affairs.

  • Animal Science, Bachelor of Science (BS), Northeast Louisiana University
  • Doctor of Veterinary Medicine (DVM), Louisiana State University
  • Veterinary Science, Master of Science (MS), Mississippi State University
    • Areas of interest: Vaccine development and support, technical support, data management


Steven Clark, DVM, DACPV, DAPV
Veterinary Professional Service Manager, Turkeys

Dr. Steven Clark is a poultry veterinarian with over 30 years of industry experience including live production, pharmaceuticals and nutrition. Dr. Clark joined Huvepharma in 2020, specializing in turkeys, providing technical support to producers and industry, and supporting the Huvepharma portfolio of biologics and medicinal feed additives and water solubles. Dr. Clark has authored 13 peer reviewed publications and numerous technical bulletins and lay journal articles and presentations. His specialty is turkey production and anticoccidial programs and intestinal health

  • NC State University (DVM) (1989), Poultry Science (1987), Internship (1990)
  • Board Certified Diplomate (ACPV) (1997) • PAACO Certified Poultry Welfare Auditor (2007)
  • Turkey Course Master - World Veterinary Education Production Animal Health (WVEPAH, 2016


Omar Gutierrez, Ph.D
Poultry Nutrition Professional Service Manager

Dr. Gutierrez's primary roles involve coordinating applied research projects and interacting with customers to promote and troubleshoot nutrition programs. He has taken part in several new product launches, including Bio D® and OptiPhos® during his tenure at Huvepharma. He received his PhD in poultry nutrition from Texas A&M University and has worked previously for Nicholas Turkey Breeding Farms and for Novus International. Omar and his family live in Austin, TX.


Nicholas Brown, DVM
Professional Service Veterinarian

Dr. Nick Brown joined Huvepharma in 2019 where he has spent his time providing technical support and supporting research trials for Huvepharma’s poultry health products after graduating from UGA’s College of Veterinary Medicine. As part of this curriculum, he gained experience with commercial poultry integrators, primary breeders, allied health companies, and diagnostic laboratories.

  • Bachelor of Science in Agriculture (BSA), University of Georgia
  • Doctor of Veterinary Medicine (DVM), University of Georgia
    • Areas of interest: Anticoccidial field research, broiler breeder management


Mark E Jackson. Ph.D.
Senior Professional Service Nutritionist, Poultry

Mark Jackson obtained a PhD degree in Poultry nutrition from the University of Arkansas. Mark has past poultry nutritionist experience with:
• Heartland Lysine, Chicago, Illinois. • Continental Grain, Chicago, Illinois. Duties involved diet formulation, research, and the development of a nutrition model. The nutrition model is currently used by the Ridley Corporation (now known as the Ridley model). • Evonik, Kennesaw, Georgia. Duties involved research and technical promotion of amino acids. • Chemgen, Gaithersburg, Maryland. Duties revolved primarily around the promotion of feed enzymes. • Elanco Animal Health, Greenfield Indiana.
Duties included technical promotion of feed enzymes and other feed additives. 

  • Areas of expertise: Enzymes, Feed composition and additive, Nutrient bioavailability, Protein and amino acid nutrition


Staci Cantley, M.S.
Professional Service Nutritionist

Staci has gained extensive and diverse experience in her 10 years in the poultry industry. In her current role, she serves as a liaison to help convey technical nutritional product information to customers. Prior to her work at Huvepharma, Staci worked as a commercial nutritionist at a multispecies feed mill serving a multitude of poultry production systems. She has comprehensive knowledge in commercial feed formulation, ingredient quality assessment, feed safety programs, and USDA Organic certification and production. Staci currently lives with her family in Morgantown, West Virginia.

  • Bachelor of Science in Agriculture (BSA), West Virginia University
  • Nutrition and Food Science (MS), West Virginia University


Ben Johnson, DVM, MAM, DACPV
Senior Professional Services Veterinarian

Dr. Johnson has over 10 years of experience as a broiler production veterinarian in addition to 8 years of experience in regulatory oversight and diagnostic laboratory management. For the last 13 years, he has worked in the biological and pharmaceutical industry as a consultant, manager, and director. At Huvepharma Dr. Johnson utilizes his wide range of knowledge to develop technical and data management tools to assist customers in utilizing vaccines, pharmaceuticals, and feed additives to their fullest benefit.

  • Bachelor of Science Agriculture (BSA), University of Georgia
  • Doctor of Veterinary Medicine (DVM), University of Georgia
    • Areas of interest: management of coccidiosis, intestinal health, broiler production medicine
  • Master of Avian Medicine (MAM), University of Georgia
  • Diplomate, American College of Poultry Veterinarians (DACPV)
  • Six Sigma Black Belt Certification, Georgia Institute of Technology


Leslie B. Johnson, DVM, MS
Professional Service Veterinarian, Poultry

Dr. Leslie Johnson has extensive customer-facing and diagnostic laboratory experience in the poultry industry. Before joining Huvepharma, she completed a combined Masters/residency training program in Veterinary Medical Science, Poultry Specialty at Mississippi State University. Dr. Johnson provides technical support to customers with an emphasis on coccidiosis control and intestinal health in broiler chickens. 

  • Bachelor of Science (BS), University of Florida
  • Doctor of Veterinary Medicine (DVM), University of Florida
  • Master of Science (MS), Mississippi State University
    • Areas of interest: Epidemiology, Broiler Intestinal Health, Diagnostics, Statistics


Andrea Zedek, DVM, MAM, DACPV
Professional Service Veterinarian

Dr. Zedek is a board-certified poultry veterinarian who has spent over 15 years working in the field as a technical services veterinarian for pharmaceutical companies, as well as a private veterinary consultant. She has extensive experience in poultry production, diagnostics, processing plants and animal welfare. She is also very active volunteering for the American Association of Avian Pathologists (AAAP) and is the current president of the American College of Poultry Veterinarians (ACPV).

  • Poultry Science, Bachelor of Science (BS), North Carolina State University
  • Doctor of Veterinary Medicine (DVM), North Carolina State University
  • Master of Avian Medicine (MAM), University of Georgia, Poultry Diagnostic and Research Center
    • Areas of interest: Management of Coccidiosis, Poultry Welfare