SPECIAL STORY 62 FEED & ADDITIVE MAGAZINE April 2023 THE POTENTIAL OF YEAST DERIVATIVES The main goals for the producer pre-weaning are to ensure: • a balanced intestinal microbiota, • a well-prepared digestive system • a well-functioning immune response. Good management practices and nutrition are keys to help young ruminants cope with early pathogens and digestive challenges. In this context, a new generation feed ingredient YANG including specifically selected yeast fractions has been proven to help maintain the health of calves and other young ruminants by reinforcing immunity and improving gut microbiota balance. YANG is a multi-strain yeast derivative formulated to strengthen animals' natural defenses with a patented, synergistic effect on the immune response. It combines two complementary actions that reinforce animals' natural defenses: - A strong pathogen binding capacity, effective against a wide range of undesirable bacteria compared to single-strain yeast derivatives - A broad and balanced immune modulation (patented), providing higher immune system modulation without risk of over-stimulation sometimes observed in cases of single immune receptor activation by traditional yeast derivatives. This was confirmed by a recent trial conducted at Lublin University and presented during the 2022 World Buiatrics Congress (Villot et al., 2022). This trial evaluated the benefits of YANG to the fecal microbiota and health status of young calves fed with milk replacer. The study confirmed a reduction of diarrhea cases and respiratory diseases in calves fed with the yeast derivatives, that could be in direct link with some changes also observed in the fecal microbiota. YANG increased positive lactic acid bacteria (Bifidobacterium, Lactobacillus) and Akkermansia, a bacteria associated with the stimulation of mucin production and immune system regulation (Figure 2). Figure 2. Fecal microbiota from YANG-fed calves versus control calves and their main potential functions.
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