Professor Galloway says animal protein plays a big part.

VOA: special.2011.04.05

Here's an example of using a large animal by inserting the gene that you're interested in, you can make this animal into a factory for the kind of protein that you would like to make.

这就是一个通过植入你所感兴趣的,基因来利用大型动物的例子,你同样能把这些动物变为,你所需要的目标蛋白的加工厂

耶鲁公开课 - 生物医学工程探索课程节选