HISTOLOGICAL AND HISTOCHEMICAL-STUDIES INTO PRENATAL DEVELOPMENT OF WOOL FOLLICLES IN EGYPTIAN FAT-TAILED SHEEP

Thickness of epidermis, diameter and density of follicles as well as the ratio of secondary to primary follicles went up with significance (P < 0.01) along with development. Medium concentrations of neutral and acid mucopolysaccharides were histochemically recorded from the corium, while high levels were present in basal stratum and hair pivots. High concentrations of alkaline phosphatase were recorded from basal stratum, hair pivots, and papillae and moderate concentrations from sweat and sebaceous glands, with the latter containing also glycogen and lipids.