the environmentally friendly pig

Recently we have read an article from a magazine concerning the harm to the environment that a common form of livestock via the pig. The article stated that the common pig excretes a large amount of phosphorus which can have a negative effect on the ecosystem itself. To solve this problem a biologist at the University of Guelph in Ontario Canada genetically modified the DNA sequence of the common pig to absorb more of the phosphate supplements in their diet and excrete 30 to 65 percent less then they once previously did. A factor for any geneticists/biologist to pursue such a task would be that the fecal matter produced by common swine can be absorbed into underground water sources or as runoff from rain into any near water source thus making a breeding ground for algal blooms which steal oxygen from the water and also cause the water to become toxic preventing it from being drinking water.