The effect of storage on egg quality and fatty acid content in PUFA-enriched eggs

The study was conducted on 90 thirty-week-old Messa H-43 layers divided int o 3 groups. The control group was fed a diet without oil seeds, while the R LP and RLP+E groups were given a diet containing a mixture of 00 rapeseed, linseed, and evening primrose seed. Vitamin E, 200 mg/kg, was added to the RLP+E diet. After 4 weeks, egg quality, fatty acid content, and the lipid o xidation level were determined. Half of the collected eggs were examined th e next day and the second half, after 20 days of storage at 12 degreesC. No effect of feeding was found on egg quality. Eggs from groups RLP and RLP+E had less saturated fatty acids and more polyunsaturated fatty acids. Egg w eight and albumen quality decreased and yolk content increased during stora ge, irrespective of the diet. Changes in fatty acid content in yolk during storage were found. Diet and the storage had insignificant effect on oxidat ion of yolk lipids.