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Congratulations to Stelbro Michelle Rubens-Red-Et, winner of Alltech's Miss Yea-Sacc1026 competition. In addition to the title, her owner, Kurt Loehr of Egan, Wisc., received a $500 cash scholarship from Alltech to help defray the costs of their trip to the World Dairy Expo.
The Miss Yea-Sacc1026 competition, a two-month-long contest among cows fed Yea-Sacc1026, received several excellent entrants. The winner was chosen based on the appearance of the animal using common judging guidelines.
Other awards held by Stelbro Michelle Rubens-Red-Et include:
Research shows Yea-Sacc1026 can have a beneficial effect on dairy cows by creating a better working environment for fiber-digesting bacteria. As explained by David Wilde, Alltech's ruminant technical manager, Yea-Sacc1026 stabilizes pH, helping reduce the acidity of the rumen by stimulating the growth of the lactic acid-consuming bacteria.
"Stabilizing the pH not only creates a more stable environment in which cellulolytic bacteria can multiply," said Wilde, "but they also appear to speed up their ability to digest fiber in the rumen, allowing greater dry matter intakes."
In addition to stabilizing rumen pH, Yea-Sacc1026 performs a key role in ensuring that the rumen is operating efficiently. "Yeasts are aerobes and require oxygen to survive so the primarily anaerobic conditions in the rumen mean they have to be replaced on a daily basis," Wilde explains. "As the animal takes in feed it also ingests oxygen, which is toxic to the anaerobic bacteria in the rumen."
Yea-Sacc1026 effectively mops up the oxygen to create the anaerobic conditions that the rumen bacteria need for growth. As they run out of oxygen Yea-Sacc1026 sends out a distress signal in the form of a peptide protein, which again stimulates the growth of the fiber-digesting and lactic acid-metabolising bacteria.
"To gain any benefit, yeast cultures must consist of live cells," stresses Wilde. "Since they are working in a largely anaerobic environment, yeasts have a limited lifespan so they have to be replaced on a daily basis through the diet to maintain any improvement in rumen function."
Alltech's feed supplement, Yea-Sacc1026 contains the live yeast strain S. cerevisiae 1026.