2Jiang. Z.,D.U,Ahn and J.S.Sim Effect of feeding flaxseed and two types of sunflower seed on fatty acid compositon of yolk lipid classes. Poultry Sci,70:2467～2475
3Nabor. EC.,Modifying vitamin composition of eggs:A Review.J.App l .Poultry.Res., 2: 385～393
4Cator. AU.Effect of feeding selenized yeast in diets of laying hens on egg selenium concentration:A research Resport submitted to the FDA, 1997
5Hargis,PS.Modifying egg yolk cholesterol in domestic fowl-a revew. World Poultry, 1988 ,44:17～29
6Lien,TF.,S.Y.Chen,S.P.Shian et al. Chromium picolinate reduces laying hen serum and egg yolk cholesterol.The Professional Anim. Scientist, 1996,12:77～80
7Elkin,R.G.,Z.Yan,K.K.Buhman,et al. Reducton of egg yolk cholesterol content through inhibition of hepatic cholesterol biosynthesis and simvastatin. A therosclerosis, 1997,134:123 (Abstract )
