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Position: Home > Articles > Novel and disruptive biological strategies for resolving gut health challenges in monogastric food animal production Animal Nutrition 2015,1 (3)

Novel and disruptive biological strategies for resolving gut health challenges in monogastric food animal production

作  者：
Ming Z. Fan;Tania Archbol
单  位：
Center for Nutrition Modeling, Department of Animal Biosciences, University of Guelph, Guelph N1G 2W1, Canad;Center for Nutrition Modeling, Department of Animal Biosciences, University of Guelph, Guelph N1G 2W1, Canada
关键词：
Antibiotic;Antimicrobial resistance;Endotoxin;Lipopolysaccharid
摘  要：
Use of feed antibiotics as growth promoters for control of pathogens associated with monogastric food animal morbidity and mortality has contributed to the development of antimicrobial resistance, which has now become a threat to public health on a global scale. Presently, a number of alternative feed additives have been developed and are divided into two major categories, including 1) the ones that are supposed to directly and indirectly control pathogenic bacterial proliferation; and 2) the other ones that are intended to up-regulate host gut mucosal trophic growth, whole body growth performance and active immunity. A thorough review of literature reports reveal that efficacy responses of current alternative feed additives in replacing feed antibiotics to improve performances and gut health are generally inconsistent dependent upon experimental conditions. Current alternative feed additives typically have no direct detoxification effects on endotoxin lipopolysaccharides (LPS) and this is likely the major reason that their effects are limited. It is now understood that pathogenic bacteria mediate their negative effects largely through LPS interactions with toll-like receptor 4, causing immune responses and infectious diseases. Therefore, disruptive biological strategies and a novel and new generation of feed additives need to be developed to replace feed antibiotic growth promoters and to directly and effectively detoxify the endotoxin LPS and improve gut health and performance in monogastric food animals.

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