Through selective breeding, an almost solid ground color has been produced.

This can be done through conventional breeding but would take over 50 years to achieve.

Through selective breeding, efforts to develop tea trees strong in cold weather have been undertaken for many years.

The organization takes the view that the diversity of plants and animals offers opportunities not only through breeding but also by delivering many other benefits.

Many breeds arose through selective breeding, and they are still very popular today for their voice.

At least one of the new elephants is a bull, and eventually the herd will include calves through breeding.

Through selective breeding, they have become well adapted to the soil in northern Estonia.

He also advocated efforts to purify the American population through selective breeding.

Others will be created through traditional breeding and food production.

Once an initial group of fish was created this way, the rest could be produced through conventional breeding.