ウズラのファブリキウス嚢の形態学的研究 : III.組織学的生後変化

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The purpose of this study was to clarify the histological changes with age as precisely as possible. The one hundred and fourty six female Japanese quails used in this investigation were 30 weeks of age from the day of hatching. 1. The bursae of Fabricius in the Japanese quails were divided into 5 stages based upon their histological profiles ; viz., growth, maturation, early involution, late involution and residual stages. 1) The growth stage (to 2 weeks of age) : Bursae were characterized by partial formation of the cortex in the lymphoid follicles. 2) The maturation stage (1 week to 5 weeks of age) : The cortex enveloped the medulla fully. The bursae had large and developed lymphoid follicles. 3) The early involution stage (4 weeks to 9 weeks of age) : The bursae were characterized by a hyperplasia of the connective tissue. This hyperplasia led to a fusion of the plicae into one another from base to top. The bursal lumen was reduced by the fusion. 4) The late involution stage (5 weeks to 30 weeks of age) : The fusion of the plicae was completed and the bursal lumen disappeared. The lymphoid follicles were smaller than in the early involution stage. 5) The residual stage (after 18 weeks of age) : The residual bursae were composed of fibrous connective tissue and adipose tissue with smooth muscular fiders and blood vessels. There were no normal lymphoid follicles in the residual bursae. 2. During growth and maturation of bursa, there was general enlargement of bursal lymphoid follicles and plicae. During bursal regression, follicular size decreased, connective tissue proliferated, plicae fused up and bursal lumen disappeared. The bursal lymphoid follicles, disappeared due to regressive and cystic changes. The fibrous bursae : were displaced with adipose tissue and finally disappeared. 3. When compared with chicken bursae, quail bursae showed more immaturity at hatching, more rapid growth and slower involution.
帯広畜産大学の論文
1977-07-25

ウズラのファブリキウス嚢の形態学的研究 : III.組織学的生後変化

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