ISSUE FOCUS FEED & ADDITIVE MAGAZINE November 2022 47 bial disease in animal production and represent, thus, a relevant alternative to antibiotics use. The complementary effects of association carefully selected ingredients in various animal challenges, allow to combine multiple modes of action in the gut, such as antimicrobial, physiological, and immunological properties contributing also to better health and performance in broiler chickens and piglets. About Dr. Clarisse Techer Clarisse Techer obtains a Msc degree in Microbiology at the Rennes 1 University (Fr) in 2009. After this period, she works on the impact of dietary fibers in piglet feed and on the establishment of sensitive and specific immunological methods for the detection of staphylococcal enterotoxins in dairy products. In 2012, she joins the Animal nutrition and processing domain of the Avril group (Fr) and undertakes PhD research in the joint research unit “Science and Technology of Milk and Egg” between Agrocampus Ouest and the National Research Institute for Agriculture, Food and Environment (INRAE). Her PhD work concerned the control of spoiling bacteria in refrigerated food composed of egg products. Since 2015, she works in the Department of Research, Innovation and Development (RID) of Mixscience (Avril group) as researcher in microbiology and then as RID manager. Her main current research interests include animal gut health management, search for alternative solutions to the use of antibiotics in animal feed and mycotoxin risk management. About Pauline Duménil Pauline Duménil recently graduated with a degree in agricultural engineering specializing in marketing and sales management of food and agricultural products at VetAgro Sup (Fr) in 2020. She started by working for a veterinary pharmaceutical company. Her mission was to launch a new product for cattle and swine respiratory diseases worldwide. She joined MiXscience in March 2021, first for a temporary assignment but stayed to strengthen the product manager team. Now, her current main mission is to pilot the swine offer of MiXscience innovative feed solutions. She works in collaboration with MiXscience swine experts and commercial teams to promote products in the best way to customers and prospects. About Claire Le Dain Claire Le Dain has a Master’s Degree in Agricultural engineering, specialized in animal production, from ESA, in Angers (Fr). She started working as feed formulation specialist in a French firme-services. She joined Avril Group in 2008, first as poultry product manager in France, and has moved to a position of poultry specialist, providing technical support for the Mixscience customers. She has a substantial background in nutrition and zootechnics. She has now the responsibility of monogastric products portfolio, and is in charge of promoting them from their development to their sales in France and abroad. Figure 5. Villus length (µm) in different groups (control, positive control with antibiotic treatment - Fatty acids esters low- and high dosage (p<0.1)) Figure 4. Effects of fatty acid esters (low- and highdosage) on ileal microbiota composition compared to nontreated group and treated groups in a poultry NE challenge
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