To compare the beneficial effects of FO on the enrichment
of n-3 LC-PUFA in eggs with the effects when other
fat sources were used in egg production, an experiment
with laying hens was carried out. The goal of this experiment
was to improve knowledge about the relationship
between precursors given in the diet and the content in
egg of the different n-3 and n-6 PUFA families. Birds were
fed with FO or with alternative mixtures of FO and other
fat sources [linseed oil (LO), rapeseed oil (RO), sunflower
oil (SO), or tallow (T)] in different proportions to attain a
wide range of relative amounts of the different PUFA studied
in eggs.