Prenatal Development of Vas Deferens in Goats (Capra hircus)

Abstract

The anatomical studies on vas deferens of 60 goats embryos/foetii ranging from 30 days to full term were conducted. The demarcation between the epididymis and the vas deferens was observed at 60^th day of gestation. After 98^th day, the vas deferens had extra abdominal and abdominal parts. Microscopically, it was lined by simple columnar epithelium with a very small lumen at 66^th day of gestation which showed slight tendency of pseudostratification at 86^th day. The longitudinal mucosal folds were observed after 125 days. The
luminal border of epithelial cells showed intense reaction for PAS, acid mucopolysaccharides and alkaline phosphatase. Lipid granules were observed in various parts of epithelial cells. Lamina propria and tunica muscularis could not be separable upto 77^th day of gestation. At 84^th day of gestation, the terminal part of vas deferens showed the dilatation, the ampulla, which was lined by high-pseudostratified columnar epithelium with few basal cells. The primordium of ampulary glands was noticed at 144^th day of gestation.