The Visual Guide to
Canine Reproduction
- Testis and Epididymis
- Scrotum
- Accessory Sex Glands
- Penis
- Prepuce
- Semen
- Breeding Soundness Evaluation
- Castration
Male Reproductive System: Semen

Bacterial Contamination.
Bacterial contamination of the India ink used to make the semen smear. Normal spermatozoon.
Shille VM (1980)