Shop

Shop All Products → Best Sellers› Vitamins & Minerals› Gut Health› Hoof Health› Joint Health› Skin & Coat› Metabolic Health› Mood & Behavior› Performance› Topline & Muscles› Respiratory Health›
About

About Us
Our Story Our Team Research Program Performance Athletes Testimonials

Find The Right Product For Your Horse

We make it easy to balance your horse’s diet in support of optimal health and performance.
Start Here →

Backed By Science

We formulate every product with research-backed ingredients you can trust.
Explore Ingredients →
Learn

Academy
Articles Breed Guides Case Studies Feeding Guides Health Conditions Research Database Videos Veterinary Portal →

Tools
Nutrition Calculator Feed Database Feed Comparison Tool Forage Analysis Heat Index Air Quality Index Electrolyte Calculator

Gain a deeper understanding of your horse’s nutritional needs and how to balance their diet with this free introductory course.
Enroll Now for Free →
Support

Support
Contact Us Find In Stores FAQ

Nutrition Consult

Get free personalized guidance on your horse’s diet from our expert nutritionists
Talk To A Nutritionist →

We're Here to Help

Our friendly customer happiness team is here to help with anything you need. Contact us or reach out below!

1-833-623-2276 info@madbarn.com
Account

Account
Dashboard Addresses Settings Log In Create Account →

Orders
Orders Subscriptions Payment Methods

My Horses

Add your horses to your account so it's easy to track their feeding program and get personalized guidance.
View Horses →

Charles W. Hartzell, DVM

Be the first to recommend Charles W. Hartzell, DVM.

Company:	Hartzell Veterinary Service
Phone:	(937) 548-4606
Email:	hartzellvet@yahoo.com
Website:	http://hartzellvetservice.vetstreet.com/
Address:	5646 Horatio Harris Crk Rd, Greenville, OH, United States, 45331

Dr. Charles Hartzell graduated from The Ohio State University College of Veterinary Medicine in 1994. He focuses mainly on equine and large animal practice. The son of Robert and Margaret Hartzell of Greenville, Ohio, Dr. Charles Hartzell grew up in Darke County showing sheep and farming. He now enjoys spending time with his children Lauren and Warren, raising Standardbred horses, and farming. (Source)

Be the first to recommend Charles W. Hartzell, DVM.

Recommend this Service or Practitioner

Find Equine Services

Use our online tool to find trusted equine practitioners and service providers in your region.

Equine Practitioners & Services

Browse through our directory of equine practitioners and services to find recommended service providers in your geographic area. Please share your recommendations for professionals you have worked with! Submit your information online to get listed in our directory.