Effects of Heat Stress on Gut Health and Immune System Nutrient Requirements


Dr. Lance Baumgard, Iowa State University

Heat stress and ketosis reduce efficiency. Decreased feed intake experienced during both situations is unable to fully explain the suboptimal productivity. Heat stress and ketosis affect herds of all sizes and almost every dairy region of the U.S. Dr. Baumgard hypothesizes the common etiological origin of both metabolic disorders as "leaky gut." Leaky gut and the resulting endotoxin infiltration alters nutrient partitioning and is a causative agent in metabolic disruption during heat stress and ketosis. Identifying dietary approaches that can improve gut barrier dysfunction is paramount in developing nutritional strategies aimed at improving intestinal health.


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