ISSUE FOCUS FEED & ADDITIVE MAGAZINE January 2023 23 When fed at higher levels (125 to 155 mg/kg), copper has a bactericidal and bacteriostatic effect on the bad bacteria present in the animal gut microbiome. As bacterial levels are reduced, the gut can increase nutrient absorption, which positively impacts feed efficiency and growth rate. Feed and water offer dual opportunities to support animal health while antibiotics are removed from the diet. As a water acidifier, Selko®-pH contains a blend of buffered organic acids. In feed, the Selko® Presan®-FY gut health additive, containing patented slow-release C12, butyrates, and a phenolic compound, works to stabilize microbiota in the gut and improve the integrity of the gut barrier. Additionally, Selko’s hydroxy trace minerals (Selko® IntelliBond® C) delivers a strong antimicrobial effect and improves growth promotion in regions where feeding copper is highly regulated. RESEARCH VALIDATES EFFICACY OF ANTIBIOTIC ALTERNATIVES EQUAL TO AGPs IN BROILERS Collaborating with research facilities and universities, Selko conducted seven studies in different production environments with varying production schemes and regulatory requirements. The studies were conducted between 2017 and 2020. Researchers evaluated how a combination approach of using Selko-pH in water and Presan-FY (combined or not with IntelliBond C) in feed could influence broiler growth performance and efficacy compared to the use of antibiotic growth promoters (AGPs). Each study compared an AGP group (BMD or zinc bacitracin) with a combination of Selko products (Presan-FY, IntelliBond C, Selko-pH). Results revealed that the performance for birds receiving the Selko additives was equal to the performance of birds receiving AGPs (Figure 2). WHAT IS THE REAL GAIN WHEN REPLACING AGPs IN THE FIELD? A comprehensive, customized approach conducted in collaboration with the customer and combining feed, farm, and health management strategies across the entire value chain can drive even better performance. The combination of feed additives is a crucial part of Trouw Nutrition’s health management strategy Figure 2. Broilers’ performance relative to AGPs in seven independent studies of Selko Presan-FY and Selko IntelliBond C in feed, and Selko-pH in water Horizontal line indicates AGP performance results. BW (body weight), FCR (feed conversion ratio), AGP (antibiotic growth promoter), BMD (bacitracin methylene disalicytate). IntelliBond C included at high levels (125-155 ppm), AGPs (BMD, zinc bacitracin) included at 50-55 ppm. *Including IntelliBond Z and IntelliBond M, ** Including high copper sulphate Trial 1 2 3 4 5 6 7 Selko Feed Additives Presan-FY, IntelliBond C, Selko-pH Presan-FY, IntelliBond C, Selko-pH Presan-FY, IntelliBond C Presan-FY, IntelliBond C* Presan-FY, IntelliBond C Presan-FY, IntelliBond C Presan-FY, Selko-pH AGP Zinc bacitracin BMD BMD BMD BMD, Flavomycin Zinc bacitracin** Zinc bacitracin
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