The National Pork Board is calling for comprehensive literature reviews of certain classes of antimicrobial alternatives.

The call is specifically addressing the usefulness and effectiveness of carbohydrates, yeast, bacteria and direct-fed microbials, acidifiers, functional animal proteins and botanical extracts to enhance growth and feed efficiency. 

Reviews will include all available sources of information, as well as including a discussion of the availability and practicality of these products to the industry. Proposals need to be submitted by May 17.

 “There are producers looking into or operating alternative production systems, including antibiotic-free production, where there is still a learning curve,” says Mark Boggess, director of animal science for NPB.

To find out more about the call for proposals, go to and click on the “NAPEs Literature Review” on the right-hand side.

National Pork Board