Zinc plays vital role in animal and human fertility, can help scientists quickly diagnose infertility

 

Infertility affects about 20 percent of the U.S. population and can be incredibly costly; it also costs the livestock industry billions of dollars each year. Researchers at the University of Missouri have found that zinc plays a key role in promoting fertility in males, a discovery that has implications for improved in vitro fertilization and artificial insemination in livestock, and for human infertility diagnostics and therapies.

 

“Zinc is linked directly with fertility,” said Peter Sutovsky, a professor of animal science in MU’s College of Agriculture, Food and Natural Resources. “We have known that giving males zinc supplements—whether pigs or humans—improves fertility. Now we know that analyzing zinc signatures can help us quickly evaluate the fertilizing potential and quality of sperm.”

Video: How the corn-soy diet transformed swine nutrition

At the 2026 ASAS Midwest Section meeting, Dr. Robert Easter, professor emeritus of swine nutrition at the University of Illinois, spoke at the U.S. Soy sponsored Swine Application Symposium, offering a historical perspective on one of the most important developments in modern pig production: the corn-soybean meal diet. What today is considered a foundational feeding strategy was not always obvious or even accepted.