Misconceptions About a Popular Pet Treat (IMAGE) Tufts University Caption A popular dog treat, the "bully stick," could be adding more calories than pet owners realize and possibly be contaminated by bacteria, according to a study published this month by researchers at the Cummings School of Veterinary Medicine at Tufts University and the University of Guelph. Credit Tufts University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.