A—PATHOLOGY OF THE GENITAL TRACTS OF MATURE STERILE OR INFERTILE BULLS

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│R. Sem. Vesicle│L. Sem. │ Ductus │ R. Testis

│ │Vesicle │ Deferens │

─┼───────────────┼────────┼──────────────┼──────────────

1│Desquamation │Same as │Both │Apparently

│ and │ right.│ apparently │ normal.

│ degeneration │ │ normal. │

│ of lining │ │ │

│ membrane. │ │ │

│ │ │ │

│Debris and │ │ │

│ exudates in │ │ │

│ lumen. │ │ │

│ │ │ │

│ │ │ │

─┼───────────────┼────────┼──────────────┼──────────────

2│Most vesicles │Same as │Right │Most tubules

│ degenerating.│ right.│ apparently │ apparently

│ │ │ normal. │ normal.

│ │ │ │

│ │ │ │

│ │ │ │

│ │ │ │

│Interstitial │ │Left shows │Some show

│ cellular │ │ degeneration│ degeneration

│ infiltration.│ │ of the │ of the

│ │ │ lining │ seminal

│ │ │ membrane. │ epithelium.

│Necrosis in one│ │ │

│ large area. │ │ │

─┼───────────────┼────────┼──────────────┼──────────────

3│Entire gland │Same as │Slight │Some tubules

│ degenerated. │ right.│ desquamation│ normal.

│ │ │ and │ Others show

│ │ │ degeneration│ degeneration

│ │ │ of mucosa of│ of the

│ │ │ right │ seminal

│ │ │ ductus. │ epithelium.

│Coagulation │ │ │

│ necrosis of │ │ │

│ interstitial │ │ │

│ tissue. │ │ │

│ Debris and │ │ │

│ exudates in │ │ │

│ the vesicles.│ │ │

─┼───────────────┼────────┼──────────────┼──────────────

4│Same as No. 3. │Same as │Epithelium │Much

│ │ No. 3.│ entirely │ degeneration

│ │ │ denuded in │ and

│ │ │ both ducts. │ desquamation

│ │ │ │ of the

│ │ │ │ seminal

│ │ │ │ epithelium.

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│R. Epididymis │ L. Testis │ L. Epididymis

│ │ │

─┼──────────────┼───────────────┼───────────────

1│Acute │Apparently │Degeneration

│ desquamation│ normal. │ and

│ and │ │ desquamation

│ degeneration│ │ in some

│ in some │ │ tubules.

│ tubules. │ │

│ │ │Others

│ │ │ atrophied due

│ │ │ to a chronic

│ │ │ interstitial

│ │ │ inflammation.

─┼──────────────┼───────────────┼───────────────

2│Degeneration │Most tubules │Same as right,

│ and │ becoming │ but some

│ desquamation│ atrophied due│ tubules are

│ of │ to a chronic │ becoming

│ epithelium │ inflammation.│ atrophied due

│ of the │ │ to a chronic

│ tubules. │ │ inflammation.

│ │ │

│ │ │

│ │ │

│ │ │

│ │ │

│ │ │

│ │ │

─┼──────────────┼───────────────┼───────────────

3│Much of the │Same as right. │Same as right.

│ epithelium │ │

│ denuded. │ │

│ │ │

│ │ │

│ │ │

│ │ │

│Debris and │ │

│ exudates in │ │

│ the lumen. │ │

│ │ │

│ │ │

│ │ │

│ │ │

─┼──────────────┼───────────────┼───────────────

4│Desquamation │Same as right. │Same as right.

│ of most of │ │

│ lining- │ │

│ membrane. │ │

│ │ │

│ │ │

│ │ │

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A study of some factors influencing fertility and sterility in the bull · 第 13 / 38 题