Teacup dogs are popular today because of their interesting size at maturity; thus, they are commonly bred as they sell very quickly.

Note that in this context domesticated does not merely refer to animals that are commonly bred and raised in captivity, such as alligators.

Meyer's Parrots are commonly bred for the pet trade.

Goldfish are commonly bred on fish farms in many parts of the world.

In the well established breeds, that are commonly bred, a large gene pool is present.

It is one of the most commonly bred milk snakes in captivity.

It is commonly bred in captivity and is found in several color variations.

They are not bred commonly in captivity, so most specimens available are wild caught, and thus are prone to heavy internal parasite load.

Pigs, cattle, sheep, horses and poultry are all commonly bred livestock.

In addition to cattle, commonly bred are pigs and chickens.