E AND QUANTITATIVE CELL TYPE POPULATION IN THE PARS DISTALIS OF THE PITUTARY GLAND IN THE MALE GOAT AROUND THE YEAR

HIFNY, A.; HASSAN, A.H.S.; KAMEL, G.; EL-KERDAWY, A.

doi:10.21608/avmj.1983.191489

E AND QUANTITATIVE CELL TYPE POPULATION IN THE PARS DISTALIS OF THE PITUTARY GLAND IN THE MALE GOAT AROUND THE YEAR

Document Type : Research article

Authors

10.21608/avmj.1983.191489

Abstract

The quantitative analysis, the topographical loclaization and the histochemical studies of the different cell forms in the pars distalis of the pituitary gland of 36 mature buckling during the year were performed. During summer and spring seasons, the LTH-cells showed a moderate degree of cellular activities and their p < /strong>ercentage were highly increased (15.27%, 15.24%). The STH-cell and the chromophobes showed their maximal percentages (20.26%, 45.20%) during summer. The FSH-and ICSH-cells were significantly increased in number reaching about 10.46% and 5.44% resp < /strong>ectively of the total cell count and were found in a condition of maximal activity in autumn. The percentage of TSH- and ACTH-cells were siginificantly high (10.20%, 1.95%) and exhibited maximal signs of cellular activity during winter. The topographical localization of the different cell forms varied among the various regions of the pars distalls during different seasons of the year attributing to the percentage as well as the activities of these cell forms.