The project here is called Enviropig. The animals inside the clean, warm barns look like normal pigs and behave like normal pigs, but they are living, breathing wonders of modern science.
Each one contains genes from mice and E.coli bacteria, which have been inserted into their DNA with absolute precision.
Those genes make a small but important difference to the way these pigs process their food.
Ordinarily, pigs cannot easily digest chemicals called phosphates. That means that the stuff that comes out of the back end can be toxic and damaging to the environment. The phosphates are easily washed into waterways, where they can produce a hugely fertile environment for plants. But the plants grow so rapidly that they choke the stream or river and cause huge damage to the ecosystem.
The genetic modification enables these pigs to digest phosphates, which means they are less polluting and cheaper to feed.
“We need to double food production,” he says. “We currently have a global population of almost seven billion and we are looking at nine, 10 or 11 billion by 2050.
A pious, responsible society would ban such a thing. This boundary oughtn’t be crossed.