In recent years, however, captive breeding has become more popular.
Captive breeding has been an option for conservation efforts also.
When the animals are taking part in serious captive breeding then thats fine but that is only about 1% of the time.
Captive breeding of marine organisms has been in development since the mid-1990s.
Captive breeding is meant to save species from going extinct.
Despite this, captive breeding of house snakes for color and pattern continues.
However, there has been very little success with captive breeding and few of the cubs which are born survive past the first year.
Birds from captive breeding will be introduced on new islands.
It is the world's first conference on captive breeding.
"Reintroduction is not the primary reason for captive breeding," he said.