Nan-Young Park

Effect of Sea Urchin Shell on Egg Quality

We investigated the quality characteristics of eggs produced from laying hens fed with non-supplemented diets (A) and diets supplemented with 3% (B) and 5% (C) of sea urchin shell powder for efficient applications of sea urchin shell. There was no significant difference in the proximate composition. Ca and Fe contents of (B) and (C) groups were higher than those of (A) group. Contents of phosphorus and magnesium, however, showed no significant differences among the groups. (B) and (C) groups had higher in essential amino acid contents than (A) group except tryptophan. Taurine was detected in all groups. Analysis of fatty acid showed that (B) and (C) groups contained more unsaturated fatty acids. The DHA contents of (A), (B) and (C) groups were 0.56%, 0.68% and 0.89%, respectively. These results show that sea urchin shell possesses the potential as supplement of laying hens diets to produce functional eggs.