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Abstract
Mansouri, S.H. and Mehrabi, J. 2000. Ultrastructural observations on bufallo parotid gland. J. Appl. Anim. Res., 18: 215–220.
The fine structure of the parotid gland of buffalo was studied by electron microscopy. The parenchyma of the gland consisted of compound tubulo-alveolo-acinar serous secretory units, intercalated ducts, nonstriated intralobular ducts and excretory ducts. The secretory units were mostly tortuous and lined with cells of variable heights, giving a scalloped appearance to secretory lumina. Secretory cells contained rough endoplasmic reticulum, Golgi apparatus and numerous mitochondria with dark granules. A few electron-dense secretory granules of different sizes were also found in the apical cytoplasm of secretory cells. Unlike other ruminants, the luminal surface of the secretory units and intercellular canaliculi were devoid of any microvilli. Secretory granules were not found in the cytoplasm of intercalated and nonstriated intralobular duct cells.