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About Us

We are ProByn International Inc. We manufacture and market natural, non-drug products for use in animal feeds. Our products are designed to enhance and increase animal production while simultaneously reducing the usage of pharmaceuticals and antibiotics. Since our foundation in 1998, we have provided exceedingly high-quality products to farmers and feed millers for over 23 years.

Meet The Family

Products

Years of Business

Global Partners

Containers Shipped

Dr. William L. Tuttle

The founder and President of ProByn International is Dr. William L. Tuttle. Dr. Tuttle earned his PhD in Animal Nutrition at Iowa State University; since then he has spent over 40 years developing and marketing natural, non-drug additives for the animal feed industry. His education, background and experience have provided him with practical knowledge about new and evolving technologies that can be applied to the increasingly important field of natural, non-drug animal production.

David P. Tuttle

Dr. Tuttle’s son, David Tuttle, is the Director of Marketing for ProByn International and also manages the daily operations. David studied business and marketing at The University of Iowa where he earned his Bachelor’s degree in Entrepreneurial Business.

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What Our Clients Say

  • ProByn’s top-quality products and superior packaging keeps our customers happy and returning for more.

    Ashfaq Ahmad Asi, Ali Poultry Enterprises, Pakistan

  • Their approach to increase farm production efficiency without relying too much on pharmaceutical products and antibiotic products is not just a marketing gimmick, their natural solutions is backup by research papers. If you prefer natural solution to farm production efficiency, Probyn is probably one of the name that you can’t do without.

    Wong Chuan Wei, Progress Bio Pharma, Malaysia

  • One of the secrets to our success is our partnership with Probyn. We have become one of the leading providers of toxin binders in the Philippine Market today-- thanks to Probyn's Myco-Power. With Probyn at our side, we have delivered excellent service, exceptional quality, and practical pricing to our clients time and time again!

    Enrico Bunyi, Supervet, Philippines

  • Over 400,000 kilograms of Myco-Power, the superior prebiotic product of ProByn, have fed millions of birds and thousands of cattle achieving complete customer satisfaction through the combined effects of toxin binding, alleviating the [negative] symptoms, and improving growth performance rate.

    Dr. Shoukry Atallah, Sure Pharmaceutica, Egypt

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