Farms.com Home  › News

Abstract: Review of Regulations and Indications for the use of in-feed Antimicrobials for Production Animals

Abstract: Review of regulations and indications for the use of in-feed antimicrobials for production animals

Antimicrobials have been fed to livestock for more than 60 years. Veterinarians and producers saw tremendous gains in health and performance, and usage became widespread. Over time, improved management reduced some of the benefit of many feed-through antimicrobials except for a few important diseases. As a result of concerns about antimicrobial resistance, the US FDA restricted the use of medically important antimicrobials. Starting in 2017, medically important antimicrobials were restricted to therapeutic purposes only, and only under the order of a veterinarian. The aim of this review is to provide an overview of commonly used antimicrobials in livestock feed and regulatory changes regarding the veterinary feed directive. When used judiciously, in-feed antimicrobials are an important tool to ensure the health and welfare of food animals while preserving the effectiveness for animals and humans.

Click here to see more...

Trending Video

Managing Severe PRRS Outbreaks - Dr. Claire Mtezankuni

Video: Managing Severe PRRS Outbreaks - Dr. Claire Mtezankuni



In this episode of The Swine it Podcast Show Canada, Dr. Claire Mtezankuni, Swine Veterinarian at Carthage Veterinary Service, discusses the growing severity of PRRS outbreaks in sow farms. She explains how respiratory disease and sow mortality are changing outbreak response, why necropsies and bacterial cultures can guide treatment, and how vaccination, biosecurity, pain management, and clear team communication support recovery and elimination. Listen now on all major platforms!

“Emerging PRRS strains can produce severe reproductive and respiratory disease simultaneously, creating substantial health challenges across sow farms during acute outbreaks.”

Meet the guest: Dr. Claire Mtezankuni / claire-mtezankuni-2529b1b3 is a Swine Veterinarian at Carthage Veterinary Service in Illinois, where her work includes commercial farm veterinary leadership, herd health, disease elimination, and veterinary internship coordination. She holds a DVM from the University of Wisconsin–Madison and a Master of Veterinary Science in Livestock Systems Health from the University of Illinois Urbana-Champaign. Learn more from Dr. Claire Mtezankuni on The Swine it Podcast Show Canada, available on all major platforms.