ウズラのファブリキウス嚢の形態学的研究 : II.組織発生

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The purpose of this study was to clarify the histogenesis of the bursa of Fabricius in Japanese quails. The one hundred and sixty five quails embryos used in this study were mainly from 10 to 16 days of incubation. The bursae were investigated histologically, histochemically and by electron microscopy. The main findings obtained in this study are as follows. 1. The bursae of Fabricius in the quail embryos were divided into 4 stages based upon their morphological profiles : viz., primordiurn, lumen formation, lymphoid follicle formation and growth stages. 1) Primordium stage (4 1/2 to 8 days incubation) : Bursae having a lumen of bursal primordia separated from the proctodeum by a bursal membrane. 2) Lumen formation stage (9 to 11 days incubation) : Bursae identifiable by the conection of bursal lumen and proctodeum. 3) Lymphoid follicle formation stage (11 to 14 days incubation) : Bursae characterized by the formation of epithelial buds, and lymphoid follicles. Lymphoid follicles consisted of medulla only. 4) Growth stage (on and after the 14th day of incubation) : Bursae characterized by partial formation of cortex in lymphoid follicles. 2. The mucous cells, basal cells, follicle-associated epithelial cells, border epithelial cells and epithelial reticular cells were derived from undifferetiated transitional epithelium of bursa. Border epithelial cells and epithelial reticular cells were differentiated at the 11th day of incubation, mucous cells and basal, cells were differentiated at the 12th day of incubation, and follicle-associated epithelial cells were differentiated at the 14th day of incubation. 3. In the propria mucosa, heterophils and mast cells were found at the 10th and 13th days of incubation, respectively. In the capsular region, melanocytes and smooth muscular fibers occured at the 10th and 11th days of incubation, respectively. 4. In the bursal lymphoid follicles, small lymphocytes, macrophages and cortex formations were found at the 14th day of incubation.
帯広畜産大学の論文
1977-01-17

ウズラのファブリキウス嚢の形態学的研究 : II.組織発生

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