For reasons that aren't yet well understood, cloned animals often abort spontaneously or are born with defects.

由于无法搞懂的原因，克隆动物通常会自行流产，或者具有天生缺陷。

youdao

The international trade in semen and embryos from cloned animals created in north and south America and beyond was effectively impossible to police.

在北美，南美以及其他一些地方生产的精子和克隆动物胚胎，其在国际范围内的交易已经无法加以有效监管。

youdao

Other cloned animals had been found to have high rates of abnormalities.

克隆动物出现畸形和异常的几率相当高。

youdao

Yeah? Food from cloned animals Food from cloned animals - you didn't expect that to be Biomedical Engineering?

嗯,来自克隆动物的食品,来自克隆动物的食品,你觉得这不是生物医学工程范畴

耶鲁公开课 - 生物医学工程探索课程节选

Food supplies - food from cloned animals.

食品供应,来自克隆动物的食物

耶鲁公开课 - 生物医学工程探索课程节选

Controlling quality because cloned animals are all genetically identical and so you wouldn't have variability that way, and so potentially you could have - pick an individual that has a really good quality meat and always reproduce that same thing.

克隆动物食品的品质具有可控性,是因为它们有相同的基因,所以动物个体的品质没有差异,所以假设你能够挑选出一个这样的个体,它的肉质非常好,就能利用该技术反复制造,完全相同的肉类产品

耶鲁公开课 - 生物医学工程探索课程节选

He told the Parliament that there were no health concerns about eating meat from cloned animals.

BBC: Cloned meat debate

Cloning creates abnormalities in the genetic read-out, which is the reason that cloned animals are so often sick.

CNN: Human stem cell cloning: 'Holy Grail' or techno-fantasy?

All of the published data shows that there is a great deal of individual variation between cloned animals.

FORBES: Magazine Article