SACC MIX… Yeast Based Support to Stabilize Rumen Health and Performance in Dairy and Beef Cattle

From rumen challenges to the need for rumen health support

Modern dairy and beef herds are pushed to deliver maximum milk and growth, often on diets rich in concentrates and exposed to heat stress and frequent ration changes. These conditions put constant pressure on rumen function and make it difficult to maintain stable fermentation day after day. When the rumen is unstable, cows cannot fully exploit the nutrients in their feed, and rumen health support becomes essential to protect performance and profitability. SACC MIX was developed by ADEMIXvet as a practical tool to bring targeted rumen health support into everyday herd management without complicating farm routines.​

What is SACC MIX and why Saccharomyces cerevisiae matters for the rumen?

SACC MIX is a feed additive based on selected Saccharomyces cerevisiae yeast, formulated to be mixed into dairy and beef rations at practical inclusion rates. Each kilogram contains a high concentration of Saccharomyces cerevisiae cells, providing a consistent dose of live microbial activity to the rumen. Research has shown that Saccharomyces cerevisiae can stimulate beneficial rumen bacteria, help remove oxygen that enters with feed and water, and create conditions that favor fiber digesting and lactate using microbes. These effects make yeast a valuable tool for rumen health support, because they help stabilize fermentation and improve the way cows utilize both forage and concentrates. By including SACC MIX in the diet, producers can harness these mechanisms in a controlled and cost-effective way.​

Helping stabilize rumen pH and reduce the risk of subacute acidosis

One of the main challenges in high-producing herds is keeping rumen pH within a healthy range when cows receive large amounts of concentrates. Live yeast has been shown in multiple trials to reduce the time that rumen pH stays below critical thresholds and to decrease the proportion of cows at risk of subacute ruminal acidosis. SACC MIX contributes to rumen health support by encouraging microbial populations that consume lactic acid and by supporting more stable fermentation of starch, which helps prevent sharp drops in pH after feeding. As rumen pH stabilizes, cows experience fewer digestive upsets, better consistency of manure and a lower risk of knock-on problems such as laminitis and loss of body condition. This stabilizing effect is a key reason why many nutritionists now consider yeast-based rumen health support an essential part of high energy feeding programs.

Improving fiber digestion, efficiency and productive output

Good rumen function is not only about avoiding acidosis, but also about extracting as much energy as possible from forage and total mixed rations. Studies on Saccharomyces cerevisiae supplementation report increases in cellulolytic bacteria, improved fiber digestion and better overall feed efficiency in dairy and beef cattle. By enhancing the activity of fiber degrading microbes, SACC MIX supports rumen health in a way that allows cows to get more out of each kilogram of forage, which is especially important where high quality roughage is expensive or limited. Improved fiber breakdown translates into more acetate for milk fat synthesis in dairy cows and more consistent weight gain in beef animals. Over time, this better utilization of feed contributes to higher milk yield, improved milk components or faster growth, and a more favorable cost per liter or kilogram of gain.​

Supporting cows and beef cattle under heat stress and dietary changes

Heat stress and sudden ration changes are two moments when rumen stability is most at risk and when rumen health support is particularly valuable. Under high temperatures, cows change their feeding behavior, spend less time ruminating and produce less saliva, which all reduces the natural buffering of rumen pH and can worsen the impact of acidogenic diets. Research indicates that live yeast supplementation helps maintain rumen pH, rumination time and feed efficiency in dairy and beef cattle under heat stress, thereby limiting the drop in production that often occurs in hot weather. Similarly, during transitions such as moving from dry cow to early lactation diets or adjusting finishing rations in beef, SACC MIX can support rumen health by helping the microbial population adapt more smoothly to new substrates. This support reduces the risk of off-feed events and keeps animals on a more stable performance trajectory.​

Working with ADEMIXvet to integrate rumen health support into your herd

Implementing rumen health support does not have to be complicated, especially when products are designed to fit easily into existing feeding systems. SACC MIX allows veterinarians and nutritionists to add proven yeast-based rumen health support to dairy and beef rations in a straightforward and scalable way. To get the best results, we encourage you to work with the ADEMIXvet technical team to design simple protocols for SACC MIX to use around high-risk periods, such as early lactation, intensive finishing or hot seasons. We invite you to follow ADEMIXvet articles and educational content on ruminant health, explore the full range of our solutions for dairy and beef, and contact us if you would like tailored recommendations for rumen health support or are interested in representing ADEMIXvet products in your market.​