found: Work cat.: Hayward, L.S. Elevated maternal corticosterone alters offspring development, physiology, and behavior in quail, 2004:abstr. (transfer of maternal glucocorticoids into yolk and their effects on offspring; egg yolk; elevated yolk corticosterone has a range of effects on offspring development and adult phenotype; avian egg yolk)
found: McGraw-Hill dict. of sci. and tech. terms, c2003(yolk [BIOCHEM] 1. Nutritive material stored in an ovum. 2. The yellow spherical mass of food material that makes up the central portion of the egg of a bird or reptile)
found: Henderson's dict. of biol. terms, 2000(yolk: nutrient material rich in protein and fats, forming a large part of the ova of many egg-laying animals (e.g. amphibians, reptiles and birds) and which nourishes the developing embryo)
found: MESH(Egg Yolk: for both ovum nutrient & dietary portion of eggs)