The three traits which could be desired in a sheep are;
1. They grow faster.
2. They are larger.
3. They are disease free.
This trait can be passed from one generation to another in that by breeding and inbreeding.
Sheep is a ruminant animal which is kept as a livestock. They are members of Artiodactyla.
They have deeply entrenched place in human culture.
Sheep is associated with pastoral and arcadian imagery. They were used as sacrificial animals in ancient religious.