Authors: Natasha Gjorgovska, Kiril Filev

---

Abstract

The last years was appear tendency for production of so called designer eggs in which was strived to regulate the content of some essential minerals. Content of these substances was strived to be higher then in normally produced eggs with the purpose to be used as a food with enriched concentration of some essential element needed for
maintained of human health.

To establish the possibilities for enrichment the hen eggs with selenium it was conducted an experiment with 30 molted hens (hybrid Hisex Brown), divided in three groups, 10 in each and accommodated 2 per cage. The experimental molted hens where aged around 80 weeks on the beginning.

In the feed aimed for group 2 and 3 the content of selenium was on the level of 0.38mg/kg (group 2) and 0.46 mg/kg (group 3). That selenium level was reached with adding the additive (called “kvasel”) which content in feed mix 2 was 0.01%, and in feed 3 – 0.02%.

Laying hens fed with higher amount of selenium in feed: – 0.30; 0.38 and 0.46mg/kg, and with daily consumption of 36.0; 45.6 and 55.2 mg selenium laid eggs which yolk was enriched with this essential mineral, because the average content in eggs in group 1, was 14, in group 2, 15 and in group 3, 24mg selenium in 100g of yolk.

Selenium content in one yolk from these eggs was: – 2.73; 2.90 and 4.62mg, which mean that hens fed enriched feed with selenium, were able part of Se to transfer in the yolk.

Those designer eggs, enriched with selenium, may to be called as a selenium eggs and to be used as a significant source of about 10% of daily requirements for people who consumed one egg per day.

Key words: enriched eggs, hen, selenium.