The cholesterol content of eggs produced by the Slovenian autochthonous Styrian hen

The cholesterol content of eggs produced by the Slovenian autochthonous Styrian hen in comparison with eggs of the Isa Brown, reared in two different rearing systems, was determined. Eggs were collected four times during the year. The cholesterol content was determined by the enzymatic-spectrophotometric method. The influence of genotype, in two different rearing systems, on the cholesterol content in eggs was studied. The cholesterol content determined in eggs from cages was 13.1 ± 0.43 mg g−1 yolk of the Styrian hens as compared to 11.4 ± 0.49 mg g−1 yolk of Isa Brown hens. The cholesterol content determined in free range eggs was 13.6 ± 0.22 mg g−1 yolk of the Styrian hen and 11.8 ± 0.30 mg g−1 yolk of Isa Brown.