[Structure of the developing and definitive eye retina in the little suslik]

Using general histological, neurohistological and cytochemical methods, the processes of maturation and structural peculiarities of retina were studied in pre- and postnatal periods of ontogenesis in the ground squirrel--the mammal with day activity. It was shown that in a ground squirrel, similar to what has been noted in all immature-born animals, maturation of the retina took place from its center to periphery and was realized from the innermost layers towards the outermost ones. Differentiation of retinal neurons was finished by the moment of eyes' opening--at the age of 12 days. The dynamics of protein metabolism was studied in ganglion neurons of the retina in the process of ontogenesis.