Lysozyme as alternative 
to antibiotics in swine

With the Food and Drug Administration (FDA) issuing stricter guidelines for the usage of antibiotics, the search for alternatives is growing in North America. Trials around lysozyme, a naturally occurring enzyme, appear positive for nursery pigs. By William Oliver and Jim Wells, USDA-ARS, US Meat Animal Research Center, Clay Center, US Lysozyme, also known as muramidase, is a naturally occurring enzyme found in bodily secretions such as tears, saliva, and milk. It functions as an antimicrobial