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Key questions about heat stress: Digestive system

In this installment, we will discover how heat stress affects the digestive tract of pigs.

Did you know that the intestine is one of the first organs to be affected by heat?
How does heat affect mucin production?
What are heat shock proteins?
What effect does heat have on glucose transport?
And on intestinal digestive capacity?
And on intestinal permeability?
What is the relationship between heat stress and inflammation?

Find the answer to these and other questions in the following slides. Just click on the screen to go to the next one.

333 Staff

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FAQs

How does heat stress affect the digestive system?

Heat redirects blood flow toward the skin to dissipate heat, which reduces intestinal perfusion.
Goblet cells increase the secretion of mucin 2, a glycoprotein that protects the intestinal epithelium.
The intestine produces specific proteins to protect itself from heat, heat shock proteins (HSP70, HSP90).
Glucose absorption in the intestinal epithelium increases, despite lower food consumption.
The activity of digestive enzymes such as sucrase and maltase decreases.
Heat stress facilitates the passage of bacterial endotoxins into the bloodstream.