Karyometric Study of Sustentacular Cells, Interstitial Endocrinocytes and Spermatogenic Cells in Testicles of Sheep in Different Seasons
Karyometric study have shown that the average diameter of nuclei of spermatogenic cells in the Russian long-haired breed rams undergoes no statistically significant changes in summer and autumn periods. Cross-sectional area of nuclei of the sustentacular cell and the interstitial endocrinocytes greatly increased in the fall compared with the summer period, which indicates an increase of the functional activity of these cells. Area of sustentacular cell and endocrinocytes, the interstitial nuclei increases significantly in the autumn than summer, indicating increased functional activity of these cells.