Protein and cholesterol content of Araucana chicken eggs

Poult Sci. 1977 Sep;56(5):1636-40. doi: 10.3382/ps.0561636.


Comparative data collected over two years are presented which refute the popular press claims that blue-shelled eggs of Araucana chickens have higher protein levels and lower cholesterol levels than market eggs. These comparisons were made between the eggs from the strains of Araucanas and those of White Leghorns and Sex-links. None of the differences found between test groups in % protein/g. albumen and % protein/g. yolk were shown to be consistently related to any one test group type. However, all Araucana test groups were significantly (P less than .01) lower in their total egg protein content than either control group by from 2.8--6.5%. This lower total protein content was the result of a consistent increase in the yolk/albumen ratio of the Araucana eggs over the market eggs. The Araucana eggs were consistently higher in their cholesterol levels on a mg./g. yolk basis than either of the market eggs. These increased concentrattions ranged from 2.0--6.9%.

Publication types

  • Comparative Study

MeSH terms

  • Animals
  • Breeding
  • Chickens / metabolism*
  • Cholesterol / analysis*
  • Egg Proteins / analysis*
  • Egg White / analysis
  • Egg Yolk / analysis
  • Eggs / analysis*
  • Female


  • Egg Proteins
  • Cholesterol