Tap to download the app
You are currently viewing the US Edition of Poultry Health Today. Click below to switch to the Global Edition or VFD News Center.

Sponsored By Zoetis



Ionophores look different to other scientists, too

Several organizations have drawn the line distinguishing ionophores from  other types of antibiotics.

The Natural Resources Defense Council, a non-profit, environmental advocacy  group, acknowledged the difference in an issue brief, “Pharming Chickens:  It’s time for the poultry industry to demonstrate antibiotic stewardship.”

The article asserted that the widespread use of antibiotics in poultry production  was breeding drug-resistant bacteria that threaten human health, but in an  endnote, added: “There has been little indication to date that the use of  ionophores [to treat coccidiosis in animals] promotes resistance to antibiotics  important to human medicine.”

A section on antimicrobial feed additives in The Merck Veterinary Manual —  the veterinary edition of the prestigious Merck Manual long used as a reference  by medical doctors — states that “ionophores…do not have any link or possible  effect on antimicrobial resistance to therapeutic antibiotics in either people or  food animals; to group all antimicrobials together for debate about the risk to  therapeutic antibiotics is ill advised and overly simplistic.”

Ionophores are not listed by FDA nor WHO as medically important to  human medicine.1,2

For more articles from this special report on ionophores, click on the titles below:

The case for ionophores: How they’re different from other antibiotics — and why it matters

Omitting ionophores raises ethical conflicts for veterinarians

Are there practical alternatives to ionophores?

Are ionophores antibiotics? That depends on whom you ask

Ionophores: The price of elimination

Canada studies find no links between ionophores, resistance of other antibiotics


1 2013 Summary Report on antimicrobials Sold or Distributed for use in Food-Producing animals, Center for Veterinary Medicine, FDa, 2015 april.

2 Critically important antimicrobials for Human Medicine. 3rd Revision 2011, World Health organization.

tags: ,
  • Gross coccidial lesion scores appear to predict microscores

    Gross coccidial lesion scores appear to be predictors of microscores, Miguel Barrios, a graduate student at the University of Georgia, said at the 2015 International Poultry Scientific Forum.

  • Are there practical alternatives to ionophores?

    Proponents of raising broilers without ionophores and other antibiotics have proposed putting more emphasis on farm management, biosecurity and alternatives to anticoccidials.

  • The Poultry Smith

    In this exclusive interview with Poultry Health Today, Fieldale Farms veterinarian John Smith reflects on his career, the state of the US poultry industry and, most importantly, what it needs to do to ensure a healthier, more sustainable future.

  • The case for ionophores: How they’re different from other antibiotics — and why it matters

    Unlike other classes of antibiotics, ionophores are not considered important to human health by top public health and regulatory agencies.

Google Translate is provided on this website as a reference tool. However, Poultry Health Today and its sponsor and affiliates do not guarantee in any way the accuracy of the translated content and are not responsible for any event resulting from the use of the translation provided by Google. By choosing a language other than English from the Google Translate menu, the user agrees to withhold all liability and/or damage that may occur to the user by depending on or using the translation by Google.