Scientists are using biotechnology as well as traditional breeding methods to develop water-saving crops to feed a growing world.

VOA: special.2009.03.23

They are engaged in raising livestock, which in Greece is more likely to be sheep and goats than cattle, but also breeding horses, which is very important for the aristocracy for carrying on warfare.

他们擅长豢养牲畜,在当地似乎养绵羊和山羊比牛要来的容易,但是他们同样养马,这对于贵族阶层发动战争很重要

耶鲁公开课 - 古希腊历史简介课程节选

They have been using conventional breeding methods to develop and test soybeans that can grow well under dry conditions.

VOA: special.2009.03.23

And,it means that transgenic marmosets can be produced from breeding instead of by the lengthy process of injecting fertilized eggs.

VOA: special.2009.06.23

In a disputed decision, officials took the wild condors into captivity so that their breeding could be supervised and protected.

VOA: special.2009.11.18

She says combining many different genes into one plant without genetic engineering requires a lot of plant breeding.

VOA: special.2011.02.22

They have been using traditional breeding methods to develop soybeans that can grow well under dry conditions.

VOA: special.2009.01.20

But plant breeding reduced the fibers, and now the beans are known as snap beans.

VOA: special.2009.03.24

But some people are concerned that breeding has reduced genetic differences among cattle.

VOA: special.2009.05.05

Anna McClung heads a rice-breeding center for the United States Agriculture Department.

VOA: special.2011.02.22

"We have a breeding program that would result in oysters that have a higher meat yield in it during the summer time."

VOA: standard.2010.07.13

It calls for genetic improvement of crops through conventional plant breeding and through direct genetic modification of crops.

VOA: standard.2009.10.21

Those facilities are so overcrowded that men are sleeping outside, exposed to malarial mosquitoes breeding in standing water.

VOA: standard.2009.09.08

(NO TRANSCRIPTS) "Through his contributions and his example and personal effort, this approach to crop breeding has scaled up to a global effort."

VOA: standard.2009.09.16

And so Tai will be sent to one of the large breeding programs in Sichuan province, where he'll be paired with a mate.

VOA: standard.2010.02.02

But his big breakthrough came later, breeding high-yielding wheat varieties that more than tripled the harvest.

VOA: standard.2009.09.16

The research was aimed at breeding oysters that would remain fat through the summer.

VOA: standard.2010.07.13

According to Ren Wang, Borlaug's legacy is his scientific approach to crop breeding.

VOA: standard.2009.09.16

The discovery should dramatically speed up the process of breeding better strains.

VOA: standard.2010.02.01

The pools become a breeding ground for mosquitos. ...

VOA: standard.2010.03.29

Clive Atyeo has been breeding orchids for 48 years.

VOA: standard.2010.02.21

It was a return to his roots. He began his work in the 1940s in Mexico, breeding wheat crops that were immune to another type of wheat rustthat had devastated crops there.

VOA: standard.2009.09.16