Agroin offers the feed additive, Biopowder, for control of odors, ammonia and other gas emissions around livestock and poultry. The company says Biopowder is a free-flowing powder made with 100% natural Yucca schidigera. Biopowder is air dried and produced with mechanical methods for inclusion of all saponins and glycocomponents of the real Yucca schidigera plant.