While a horse with one testicle can still produce sperm, it is not guaranteed that they can father offspring.
Here's why:
* Sperm production: One testicle can still produce sperm, but the quantity and quality may be affected.
* Hormonal balance: While a single testicle can produce testosterone, the hormonal balance might be slightly different, potentially impacting fertility.
* Other health factors: There may be other health issues that contributed to the horse having only one testicle, which could affect their overall fertility.
If you're considering breeding a horse with one testicle, it's crucial to consult with a veterinarian. They can evaluate the horse's overall health and fertility, and advise you on the best course of action.
It's also important to remember that ethical and responsible breeding practices are essential. Consider the potential health implications for both the stallion and any offspring, as well as the overall welfare of the horse population.