I don't know about the ejaculate, but they say the testes of bulls are very tasty and useful for the male "beginning" that is, spermatogenesis. It is customary for many peoples of the world, especially men, to have the testes of bulls, as a sign of masculinity and courage. They are actually delicious. They are not just eaten, but fried.
To answer this question, I invite the person who asked the question to find out by trial and error. Methods and results can be reported on specialized resources.