two testes which have a spherical shape and are relatively small compared to the animal's body. They are wrapped in particular wraps and after their descent into the abdominal cavity they are contained in the scrotum which can be seen posteriorly between the thighs.
The function of the testicles is twofold:
1. sperm formation (spermatogenesis). This process is under the direct control of pituitary hormones and can be compromised by endocrine imbalances, dietary, psychic factors, temperature changes and diseases;
2. production of male hormones or androgens (testosterone). This very important role distinguishes the male from the female and influences animal behavior. The epididymis is applied to each of the testicles, where spermatozoa are collected which reach full maturity.