The male alpaca matures more slowly than the female. A male will typically begin to show signs of willingness to breed between 2 1/2 and 3 years of age. He may think he can breed before that and young adolescent males will sometimes exhibit breeding actions with other young females or adult females. The males penis is very long and thin like a pencil and until the age of sexual maturity it is adhered to the prepuce or sheath that covers it. Breeding is done in a prone position and can take anywhere from 10 – 60 minutes. During a breeding the male will move his penis from one of the females “horns” to the other. During this time he is dribbling seman in each horn to await the female eggs for fertilization. Most pregnancies occur in the right horn. While breeding the male makes a continuous orgling sound and moves his front legs occasionally along the sides of the female. The female will remain in a kushed position, moving her head and sometimes looking up and back at her lover. She rarely makes any noise at all and sometimes will eat or just appear to be totally bored with the whole process.
Males should not be bred more than once every 24 hours. This allows him to not only regain his composure and strength, but for the penis to relax, re-enter it’s sheath and his semen to reproduce to sufficient potency for impregnating another female. Male alpacas that are not going to be used for breeding purposes should be castrated at around 2 years of age. These males are often used as companions for females when traveling or for young males being weaned from their dams. Castration also helps to maintain the micron of their fiber in the older years. They are usually sold at much reduced prices as pet quality animals and make wonder PR animals for your farm or for 4H studies and performance training for shows.