Sim, J S Effect of dietary factors on serum and egg yolk cholesterol levels of laying hens. [electronic resource] - Poultry science Sep 1977 - 1616-21 p. digital Publication Type: Journal Article ISSN: 0032-5791 Standard No.: 10.3382/ps.0561616 doi Subjects--Topical Terms: AnimalsChickens--metabolismCholesterol--analysisCholesterol, Dietary--metabolismDietary Fats--metabolismEgg Yolk--analysisFemaleOils--metabolismOvipositionSafflower Oil--metabolismGlycine maxSterols--metabolism