Evaluation on egg quality of Lushi green-shell layers

100 eggs from 61 to 65 week-age Lushi green-shell layers were selected randomly to determine egg quality.The results showed that average egg weight,egg specific gravity,egg shape index,shell thickness,and yolk to egg weight ratio were 49.15 g,1.09,1.31,356.8 μm,33.16%,respectively.Crude fat concentration and total cholesterol concentration in yolk and total cholesterol concentration in egg were 54.35%,14.27 mg/g,197.38 mg,respectively.SOD concentration in yolk was 6.33 U/mgprot.It indicated that Lushi green-shell eggs were not only better than the common eggs in egg weight,shell thickness,yolk to egg weight ratio,but also had distinct advantage in yolk crude fat concentration,yolk total cholesterol concentration and other indexes.