One in particular was conducted by Judy Carman, Howard Vlieger, Larry Steeg, Verlyn Sheller, Garth Robinson, Catherine Clinch-Jones, Julie Haynes, and John Edwards in 2013.They decided to test the effects of GMO foods and non-GMO foods on pigs. They split the pigs so there was an even number of males and females in each group, fed one group GMO soy and GMO corn, and to the other group non-GMO soy and non-GMO corn. Before they started they measured feed intake, weight, mortality, and blood biochemistry, After 22.7 weeks (the average lifespan of a pig from birth to slaughter) GMO fed pigs had 25% higher uteri and GMO fed pigs had 32% higher rate of stomach