Mazzoleni Spa has reported that its live yeast product, BioCell® R, improved fiber digestion, feed efficiency, and milk production in a study of 170 Italian Holstein dairy cows. A study conducted on 170 Italian Holstein dairy cows has found that supplementation with BioCell® R, a live yeast product developed by Italian animal nutrition company Mazzoleni Spa, was associated with more efficient digestion, improved feed utilization, and increased milk production.