The morphometrical and morphological features of the infundibulum and ampulla of the
uterine tubes of adult cattle were studied. The materials used in this study were consisted
of 12 pairs of uterine tube of healthy cows at age of 16–36 months, collected from Assiut
slaughterhouses. Through observations of the ovaries, follicular and luteal phases of estrous
cycle of each cattle were specified. Semithin sections of ampulla and infundibulum at follicular
and luteal phases were made and histochemical analysis of the ampulla by use of
PAS, Alcian Blue, Sudan Black B was also done. In addition, acid phosphatase activity of the
ampullar epithelium was demonstrated. Histological analysis of the epithelium of bovine
oviduct revealed that it was consisted of non-ciliated secretory cells, two populations of
ciliated cells (CC), basal cells and Peg cells. At the luteal phase, the secretory cells possessed
many cytoplasmic protrusions that extended beyond the luminal borders of the
ciliated cells and exocytosis of secretory materials was observed. While at the follicular
phase, the ciliated cells were predominated. The histochemistry of the ampullar epithelium
revealed increase in secretions of neutral, acidic mucopolysaccarides and lipid from
the secretory cells at the luteal phase with moderate acid phosphatase activity. Histomorphometric
examinations of infundibulum and ampulla indicated that the mean number
and height of primary folds as well as the thickness of the epithelium were increased
significantly at the follicular phase.