Hagro is a highly concentrated and stable mixture of essential oils and organic acids and salts with antimicrobial activity in animal feeding. The presence of microorganisms in animal feed in particular and in the production environment in general are a major concern for feed and animal producers, for the consumer and for health authorities. The universal presence of salmonella, their serious health and economic risk call for thorough hygiene management throughout the entire process from feeding to meat processing until consumption. The antimicrobial activity of certain organic acids especially in well-proportioned and reacted synergistic combinations are widely recognised. The addition of essential oils creates a unique flavour which supports appetite and improve feed utilisation.