BZD International, Inc., is a worldwide distributor and manufacturer of vitamins, trace minerals, and fermentation products. The premixing facility is located at Lincoln, Nebraska U.S.A. is licensed and GMP certified in 1982, at this location we produce custom premixes of vitamins, minerals, medications and fermentation product blends.

BZD is the exclusive agents of patented fermentation products produced by George A Jeffreys & Company in Salem Virginia. These products include enzymes, yeast, lactic bacteria, waste treatment cultures and various culture blends. BZD have a second domestic and international office located in Brownsville, Texas, U.S.A. as well.

The fermentation products of enzymes and yeast used in animal feed supplements called Zymavite, Zymayeast, or SUBDU. U.S.A patent number is: 3.677.897, 2.505.360 and 4.055.666.

BZD International, Inc. Jarrell, Texas plant is licensed in Texas in 2006 to manufacture and distribute commercial feed. On July, 2008 this office conducted a Good Manufacturing Practice (GMP) inspection. The observations at the time of inspection indicated that the facility was in compliance with all of the requirements of the Association of American Feed Control Officials (AFFCO) Model and the office of Texas State Chemist with Good Manufacturing Practice Regulations for Feed and Feed Ingredients.