SPECIAL STORY FEED & ADDITIVE MAGAZINE November 2023 59 for four days, from D17-20. The Cp challenge, following on from the coccidiosis priming, simulated an actual in-field infection. Trial results showed that feed supplementation with Microsaf® at 500 g/t reversed the negative effect of the challenge in relation to body weight (Fig. 3). These results were also assessed as being better than those recorded with a Bacillus subtilis-based probiotic and BMD. In was concluded that, considering livability and the European Performance Index (EPI), Microsaf® was superior to an AGP-like bacitracin (BMD). CONCLUSION Microorganisms from the genus Bacillus have been studied as a sustainable solution to support modern farming, consumer health, and animal welfare. When different species of Bacillus are combined within a single product, they have a broader spectrum of action and provide multiple benefits, which potentially can reduce the use of AGP. Microsaf® combines three species of Bacillus (B. amyloliquefaciens, B. licheniformis, and B. pumilus), which have a complementary mode of action resulting in the inhibition of pathogens by stimulating the immune response in the host (B. amyloliquefaciens and B. pumilus), enzymatic activity (B. amyloliquefaciens), and organic acid production (B. licheniformis). These antimicrobial properties have been demonstrated in numerous studies in poultry and continue proving that Microsaf® is a promising and cost-effective solution in the poultry market. Supplementing birds’ diet with Microsaf® can protect the gastrointestinal tract of birds from the development of necrotic enteritis with improvement in the productive parameters and without the need for AGP. Microsaf®, powered by the GO Technology®, is an efficient sustainable solution, scientifically proven, to protect the gastrointestinal tract of broilers from the negative effects of pathogens while guaranteeing growth performance and cost-effectively reducing antibiotic use. About Dr. Alain Riggi Dr Alain Riggi has rich field working experiences as Chief Veterinarian with different poultry production companies before joining MSD animal health in 2010 where he held different positions including Poultry Technical Director for Europe and North & West Africa. Currently, Dr Riggi is Global species manager – Poultry at Phileo by Lesaffre. As poultry veterinarian, one of Dr Riggi’s core missions at Phileo by Lesaffre is to help large poultry producers in the world (US, China, EU, Brazil, Thailand, etc.) to identify the issues in their farms and provide solutions. About Dr. Ruth Raspoet Ruth Raspoet received a master’s in Biomedical Sciences and Molecular Biotechnology at Ghent University. In 2014 she obtained a PhD in Veterinary Medical Science at Ghent University, studying the survival mechanisms of Salmonella Enteritidis in egg white. After contributing on studies for Salmonella vaccine development with Ghent University, she joined Phileo by Lesaffre in April 2015 as Poultry R&D manager. Raspoet’s core function is to develop new products, services and solutions for the poultry industry. Figure 3. Body weight at D35
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