Antibiotics Resistance:Antibiotics in Animal Feed-Overuse of Antibiotics for Growth Promotion (Download PDF)


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US-based Center for Disease Dynamics, Economics, and Policy (CDDEP), found samples from 530 birds in 18 poultry farms in Punjab found resistant to a range of critical antibiotics.

Image shows the examples of How Antibuotic Resistance Spreads

Image Shows the Examples of How Antibuotic Resistance Spreads

Image shows the examples of How Antibuotic Resistance Spreads

  • Found high levels of antibiotic resistant pathogens in chickens for eggs and meat posing serious health hazards for humans.
  • Two-thirds of the farms were using antibiotic for growth promotion
  • Farms using antibiotic factors three times likely to be multidrug resistant
  • Reservoirs of resistance found across both types of farms
  • Meat farms had twice the rates of antimicrobial and multidrug resistance than egg-producing farms
  • High levels of multi-drug resistance, ranging from 39 % for ciprofloxacin —used to treat endocarditis, gastroenteritis, cellulitis, and other infections - to 86 % for nalidixic acid, a common treatment for urinary tract infections.
  • Presence of enzymes in E coli signaling drug resistance to medications used to treat E coli, bacterial pneumonia, and other infections.

Antibiotic Resistance from Animals Feed to Humans

Antibiotic Resistance from Animals Feed to Humans

Antibiotic Resistance from Animals Feed to Humans

Antibiotic Resistance from Animals Feed to Humans

Why Are Antibiotics Used in Livestock?

  • Antibiotics are used in livestock for treatment or sub-therapeutic doses in animal feed and water is used to promote growth and improve feed efficiency.
  • Use of antibiotics for growth promotion in farm animals has increased worldwide in response to rising demand for food animal products
  • Use of antibiotic for growth has been banned in US (2017) and in Europe (2006)

What is Antibiotic Resistant and Its Spread?

  • All animals carry bacteria- antibiotics kill many bacteria, but resistant bacteria can survive and multiply- according to Darwin’s survival of fittest.
  • Food animals when slaughtered and processed contaminate the meat or other animal products with antibiotic resistant bacteria.
  • These bacteria can also get into the environment through animal stool and spread to agricultural produce irrigated with contaminated water.
  • Food also is contaminated whether the bacteria are resistant to antibiotics or not.

How Do Resistant Bacteria Move from Animals to Humans?

  • From handling or eating raw or undercooked food from animals or produce contaminated with resistant bacteria
  • From contact with animal stool (either directly or when it gets into water for drinking, swimming or growing plants)
  • From touching or caring for animals

Effects of Resistant Infections on People

  • Some resistant bacteria cause severe illness. People with these infections:
  • May be more likely to be hospitalized and have higher medical expenses
  • May take longer to get well again
  • May die from the infection with no antibiotic working against the infection

- Published/Last Modified on: August 9, 2017


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