[Ultrastructural study of the interrenal tissue in the Pekin duck(author's transl)].

The fine structure of the interrenal tissue in the Pekin duck has been studied utilizing intravascular perfusion method of fixation. The adrenocortical cells were found to contain considerable amounts of lipid droplets, mitochondria, ergastoplasm, endoplasmic reticulum and a well-developed Golgi apparatus. The subcapsular and central regions of the adrenal cortex can be distinguished mainly by the abundance of liposomes and mitochondrial size and shape.