Methods: Cafeteria Experiment

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Methods Cafeteria Experiment

• 21 Male Sprague-Dawley Rats
• 12 hour light/dark cycle, RC H2O ad libitum
  except
• Experimental Day (18 hour food deprivation)
• Foods presented simultaneously
• Froot Loops
• Onion Rings
• Rat Chow
• 3 rats per week
• Counterbalancedover 7 weeks

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Experimental Timeline
Latency is the time from presentation of the food
to first bite.
End Experiment Remove and weigh all foods
Foods removed, weighed, and returned to cages
Begin Experiment Insert 3 foods
800 AM
810
820
830
840
850
900
920
930
910
18 hour food deprivation
Foods removed, weighed, and returned to cages
Two indices of palatability 1) Latency to eat
each food (minutes) 2) Intake of each food (grams)
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Results of Cafeteria Experiment

• Palatability Hierarchy
• RC lt OR lt FL

Next Experiment
3 Course Meal
Food Intake
Effects of Palatability on
Caloric Intake