The university has been producing a line of Enviropigs since 1999 strictly for scientific study. However, the goal has always been to explore practical options for use of the technology to allow the animals to have positive impacts for both the environment and industry, said associate vice-president (research services) Steven Liss.

The Enviropig was the first transgenic animal created to solve an environmental problem — phosphorus pollution in surface and groundwater.

The pigs are genetically modified so that they can utilize a normally indigestible form of phosphorus in feed grains. As a result, they produce manure that is more environmentally friendly.

Published scientific studies have confirmed phosphorus levels that are 30-65% lower than those of regular pig manure.

Applications to other federal agencies to assess the safety of Enviropigs for human food and animal feed are currently under review both in the U.S. and Canada and there is no set date when or if these reviews will conclude, Liss said.

The University of Guelph is the sole owner and producer of the animals, which are kept in secure facilities. Working closely with the government, the university will continue to breed the animals under strict confinement and control measures, Liss said.