ISSUE FOCUS 34 FEED & ADDITIVE MAGAZINE May 2024 “Initially introduced in the 1980s, the xylanase’s use has expanded globally without notable advancements. Despite shifts in production methods, processing technologies, and the incorporation of various by-products, xylanase enzymes have not evolved correspondingly. This has left a gap in meeting the dynamic needs of today's commercial nutritionists. However, the landscape is set to change...” For over 30 years, the application of xylanase in broiler diets has remained largely unchanged. Initially introduced in the 1980s, the xylanase’s use has expanded globally without notable advancements. Despite shifts in production methods, processing technologies, and the incorporation of various by-products, xylanase enzymes have not evolved correspondingly. This has left a gap in meeting the dynamic needs of today's commercial nutritionists. However, the landscape is set to change with the advent of cutting-edge in-feed xylanase technology. WHY THE SHIFT TO INNOVATIVE XYLANASE ENZYMES IS CRUCIAL Historically, xylanase enzymes were adapted from industries outside of animal production to address gut viscosity issues in broilers fed wheat-based diets. This adaptation proved effective in mimicking the growth performance achievable with low-viscosity corn/soya diets, while also reducing disease risks by diminishing anti-nutritional factors (ANFs) and gut viscosity. The introduction of xylanase not only facilitated nutrient release from previously indigestible feed components but also allowed for the adoption of an energy matrix value, optimizing feed formulation costs. Despite its widespread use, with penetration rates exceeding 50%, traditional xylanase solutions have inherent limitations, particularly in diets predominantly based on corn-soybean, which are rich in insoluble arabinoxylans. ADVANTAGES OF GH10 OVER TRADITIONAL GH11 XYLANASE The GH10 xylanase differs fundamentally from the GH11 family, which has been commonly used but is less effective against insoluble arabinoxylans found in corn-soy based diets. GH10 enzymes require fewer unsubstituted xylan monomers to act effectively, allowing them to break down arabinoxylans more efficiently, even near branched areas. This results in a broader and more effective degradation of feedstuffs, including complex fiber components. THE FUTURE OF XYLANASE IN FEED: ENHANCED FLEXIBILITY AND COST-EFFECTIVENESS Axxess XY from EW Nutrition is from GH-10 family of xylanases and is designed for optimal performance across a wide range of feed substrates NEW XYLANASE UNVEILS UNTAPPED POSSIBILITIES FOR BROILER FEED Dr. Ajay Awati Global Director Enzymes EW Nutrition
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