Table 2.
Frequency (%) of gross changes in rams experimentally infected with Actinobacillus seminis or Histophilus somni.
| Macroscopic changes in infected sheep (n = 10) | Actinobacillus seminis | Histophilus somni |
|---|---|---|
| Abscess in the left epididymis tail | 50% | 50% |
| Abscess in the left epididymis body | 20% | 40% |
| Abscess in the right epididymis tail | 10% | 0% |
| Scrotal swelling | 10% | 0% |
| Fibrin in the pampiniform plexus | 0% | 30% |
| Fibrinous periorchitis | 20% | 30% |
| Hemorrhage adjacent left epididymis tail | 20% | 10% |
| Tunica vaginalis thickening with fibrous adhesion | 40% | 60% |
| Hypotrophy left testis | 50% | 10% |
| Increase in volume of vesicular glands | 30% | 0% |
| Increase in volume of the left urethral bulb | 10% | 10% |
| Inguinal lymphadenomegaly | 60% | 20% |
| Iliac lymphadenomegaly | 50% | 20% |