Australians eat lamb cutlets battered with egg yolk and breadcrumbs. Antigens are also injected into chickens for generation of polyclonal antibodies in egg yolk. Lutein is the most abundant pigment in egg yolk. There is debate over whether egg yolk presents a health risk. It is also found in high concentrations in chicken egg yolk. They can be small like caviar or as large as an egg yolk. When mixed with egg yolk it turns green-grey. Some Native American versions are cooked by coating fish with semolina and egg yolk. Immediately after hatching, turtles are dependent on egg yolk material for sustenance. On the Baird-Parker agar with egg yolk supplement, colonies appear small and black. If it has a smaller percentage of egg yolk solids, it is considered ice cream. B6 helps prevent dandruff and can be found in cereals, egg yolk and liver. Nevertheless, such interior egg yolk contamination is theoretically unlikely. The proteins and lecithin in the egg yolk serve as emulsifiers in mayonnaise. The main emulsifier in egg yolk is called lecithin, which is a phospholipid.