Mating of good quality animals to produce highly productive and suitable animals for enhancement of overall performance in the subsequent generations and to increase production and profitability is termed animal breeding. In other words controlled mating followed by selection to obtain good quality of domesticated animals is known as animal breeding.

Main aims of animal breeding are:

• Increased yield and better quality of "animal products like milk, eggs, meat and wool.
• Longer productive life and higher reproductive rate.
• Higher growth rate.
• Resistance to various diseases.

Types of Animal Breeding:
On the basis of type of breeds being employed in animal breeding practices, animal breeding is of two types: 
Inbreeding and 
outbreeding.