Deposition of n-3 Fatty Acids in Eggs

Source: Denzil Maurice, Ph.D., C.N.S.
Various sources of n-3 fatty acids are used in feed to modify egg fatty acids and produce designer eggs. Such eggs contain increased amounts of n-3 fatty acids and could provide adequate n-3 fatty acid intake and thus serve as a dietary alternative. Little is known about the rate of deposition of n-3 fatty acids in eggs produced by different strains of commercial layers and the relationship between dietary concentration of the fatty acid source and the amount deposited. Effective least cost formulation to market designer eggs requires information on the quantitative response to different amounts of dietary fatty acids in strains commonly used.

The purpose of this study is to determine the response of yolk lipids to different amounts of n-3 fatty acids in the diet in chickens producing white and brown shell eggs. The second objective is to develop a prediction equation to estimate the amount of n-3 source required to produce eggs with required amounts of n-3 fatty acids.