Ruminant nutritionists have used a spectrum of feed
additives to improve ruminal pH and maximize fiber
degradation, namely by directly feeding active dry bacteria
and yeast and yeast culture products. Active dry
yeast products are manufactured in a manner to maintain
a specific number of live cells (>1.5 × 1010 cfu/g
of DM), thus preserving the majority of the products’
ability to ferment forages