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Related Experiment Videos

Behavior of sheep drinking ethanol solution

J R Blair-West1, D R Deam, D A Denton

  • 1Howard Florey Institute of Experimental Physiology and Medicine, University of Melbourne, Parkville, Victoria, Australia.

The American Journal of Physiology
|June 1, 1995
PubMed
Summary
This summary is machine-generated.

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Sheep can substitute water with a 10% ethanol solution for drinking, but they still prefer water when thirsty. Chronic ethanol intake affects brain mechanisms related to thirst in sheep.

Area of Science:

  • Neuroscience
  • Physiology
  • Animal Behavior

Background:

  • Chronic ethanol consumption can alter fluid balance and thirst regulation.
  • Understanding the brain's response to thirst stimuli in the context of ethanol intake is crucial.

Purpose of the Study:

  • To investigate the effect of chronic ethanol intake on brain mechanisms controlling thirst in sheep.
  • To determine if sheep can use ethanol as a water substitute and how thirst stimuli influence this behavior.

Main Methods:

  • Sheep were habituated to drinking a 10% ethanol solution or water.
  • Thirst was induced using intracerebroventricular (icv) infusions of angiotensin II (ANG II) or hypertonic saline, and fluid deprivation.
  • Ethanol and water intake were measured under various conditions.

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Main Results:

  • Habituated sheep preferred water over ethanol but did consume ethanol when thirsty.
  • Intracerebroventricular infusions of ANG II or NaCl increased ethanol intake but significantly more water was consumed.
  • Fluid deprivation increased water intake in control sheep but had a limited effect on ethanol intake.

Conclusions:

  • Sheep can accept 10% ethanol as a daily drinking fluid, but it does not fully satisfy thirst.
  • Chronic ethanol intake influences, but does not abolish, the brain's thirst regulatory mechanisms.