Dr. Hans Stein has learned why copper works to improve pig performance.
It’s because copper enhances pigs’ ability to use dietary fat after it’s absorbed by their digestive systems, found the professor of animal science at the University of Illinois.
“Our results indicate copper hydroxychloride is enhancing metabolism of fat, and that’s how the pigs get more energy. And that, we believe, can explain why pigs have better feed conversion rates when we feed this copper source in the diets,” he said.
Pigs fed a ration with 150 milligrams of copper hydroxychloride per kilogram had greater average daily gain and gain-to-feed ratio, representing better feed conversion.