Cytology of the Pituitary Gonadotrophs, Histological Characteristics of Interrenal and Chromaffin Cells in Relation to Testicular Activities in Mystus Vittatus (Siluriformes, Bagridae) During Growth, Maturation and Spawning Phases

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histological features of interrenal and chromaffin cells in relation to seasonal testicular activities in notopterus notopterus (pallas, 1769)

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Histological Changes in the Activity of the Thyroid Follicles and Its Impact on Ovarian Tissues in Mystus Vittatus (bloch, 1794) during Growth, Maturation and Spawning Phases

The thyroid gland of Mystus vittatus was unencapsulated, composed of follicles scattered mainly around the ventral aorta in the sub pharyngeal region. Each follicle provided with agranular eosinophilic colloid materials in the central lumen was encircled by a single layer of epithelial cells. The follicular cells varied according to the secretary activity in harmony with the reproductive cycle....

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ژورنال

عنوان ژورنال: Vestnik Zoologii

سال: 2018

ISSN: 2073-2333

DOI: 10.2478/vzoo-2018-0017