Japanese Journal of Veterinary Research;Volume 23, Number 1

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MORPHOLOGY OF BURSA OF FABRICIUS IN BURSECTOMIZED AND THYMECTOMIZED DUCKS

SUGIMURA, Makoto;HASHIMOTO, Yoshiharu;YAMADA, Junzo

Permalink : http://hdl.handle.net/2115/2061
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Abstract

The morphology of the bursa of Fabricius was described in hormonally bursectomized, surgically thymectomized and control ducks, aged 5 to 7 weeks. In the control ducks, the bursa showed two prominent longitudinal folds packed with numerous lymphoid follicles. It was clearly demonstrated that the follicle-associated epithelium showed ability to absorb India ink. In the bursectomized ducks, the bursa significantly diminished in weight and size. The histology of the bursa clearly showed an atrophy of folds and a disappearance or diminution of the lymphoid follicles, although this did not always completely inhibit the formation of lymphoid follicles. It was noted that each of the remnant follicles was perfectly normal in structure. In 5 surgically thymectomized ducks, 4 bursae were normal in structure, but in a bursa, lymphoid follicles have almost completely disappeared.

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