Hay in a Tray: Does Barley Fodder Increase Unsaturated Fat in Eggs?

Overview

Objectives/Goals The objective of this experiment was to determine if giving Barley Fodder to a chicken will increase the amount of unsaturated fat in their eggs. Methods/Materials To find out how much unsaturated fat is in the chicken's eggs, I put Iodine into a test tube filled with egg yolk and counted the amount of Iodine that was added. In a different test, I put Bromine Water into the test tubes filled with egg yolk. There wasn't enough room for the Bromine Water to fully react with the egg yolk. Next I put an egg yolk diluted with water into a beaker. I added Bromine Water to the mixture until it stopped reacting with the unsaturated fat in the mixture and the color of the Bromine Water reappeared. Results The experiment showed that there was slightly more unsaturated fat in the eggs from chicken's whose feed was supplemented with Barley Fodder than the eggs from chicken's whose feed was not supplemented. Conclusions/Discussion When I put Bromine Water in the beaker the color of the solution turned white because it was reacting with the carbon-carbon double bond in the unsaturated fat. After adding a little more Bromine Water to the solution the brown color of the Bromine Water came back because there was no more unsaturated fat in the egg yolk mixture. I discovered that supplementing chicken's feed with Barley Fodder does increase the unsaturated fat in their eggs, although not a lot.

Awards (1)

• Honorable Mention

Competition history

• CSEF 2016 Biochemistry/ Molecular Biology · Entry J0522

Resources

• CSEF project summary ↗

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