No. Deer velvet is merely a special thin layer of skin that grows on antlers during their growth period before being shedded prior to the rutting or mating season.
Fuzz on deer antlers are called velvet.
Whitetails shed their velvet in fall
Deer antlers are made from bone. The velvet on the outside of the antlers carries the blood vessels to the antlers while they are growing. When they have grown to full maturity, the velvet dies and falls off.
Velvet.
By rubbing them off trees bark or in the duel with another deer
The antlers. It is shed by the deer rubbing against something rough - or by fighting with their peers.
velvet
If by they, you mean deer, then yes. Velvet covers deer's antlers and feeds the antlers the vitamins and minerals it needs to grow. There is a base at the base of each antler, and when the antlers have received enough vitamins and minerals, the base cuts off the blood flow to the antlers, causing the velvet to dry out, shrivel up, and fall off. The velvet is itchy, so the deer rub up against trees and such to help get the velvet off. Basically the only reason the deer's antler's bleed is because the blood may not be fully cut off and the deer still find it itchy so they try to scratch it off themselves.
No. Human growth hormone or HGH comes from the human body, specifically from the pituitary gland, not from deer antler velvet. However, it has been reported from scientific journal articles about IGF-1 (Insulin-like Growth Factor-1) being a factor in the growth of deer antlers, and consequently may play a role in stimulating Human Growth Hormone enabling people taking deer antler velvet supplements to have more growth over those who do not. Note the keyword: stimulating, not made from nor produced or any other synonym you can think of relating to "made from."
velvet
velvet
A silk fabric, having a short, close nap of erect threads. Inferior qualities are made with a silk pile on a cotton or linen back., The soft and highly vascular deciduous skin which envelops and nourishes the antlers of deer during their rapid growth., Made of velvet; soft and delicate, like velvet; velvety., To pain velvet., To make like, or cover with, velvet.