MICROMORPHOLOGY OF THE TWISTED-BLIND VEIN IN SHEEP OF STAVROPOL BREED IN THE POSTNATAL PERIOD OF ONTOGENESIS
Data on the structure of the wall membrane of the twisted-blind vein in Stavropolsky sheep are submitted. The dynamics of their micro- morphological indices and the periods of the most intensive growth of their cells, as well as of elastic and collagen fibres of all the membranes of the vessel wall, have been studied.