Hippocrates did exist (although some scholars dispute even this) and was well known in the Greek world. Apparently born about 460 B.C. on the island of Cos, he died about 370 in Thessaly. He was a teacher on Cos, an itinerant practitioner of medicine, and the presumed author of a number of treatises.
Males: Castration is a relatively minor operation, which can be performed as soon as the testicles descend (10-12 weeks) although most vets wait until the rabbit is 4-5 months old. The testicles are removed via the scrotum or the lower abdomen.p to 80% of unsprayed female rabbits develop uterine cancer by the age of 5. Females who are not spayed when young and in good health may have to undergo the operation as an emergency in later life (e.g. cancer or pyometra) develops.
Over 100 million pigs are marketing in the USA each year. With half of these animals being males, we understand that over 50 million male pigs are sent to market. In the USA virtually all males are physically castrated at a young age (predominantly) with no anesthesia or analgesia (pain relief).The market weights of pigs are 260-300 lb today. Onset of puberty varies with genetic line, but most males pigs enter puberty in the 220 to 240 lb range (now about 5 months of age).he Science of the Pain of Castration. The first scientific paper on the pain of castration was published in 1988. In this work, McGlone and Hellman castrated piglets (3 days old) or nursery-age pigs (7 weeks old) with and without local or general anesthesia.