I read with interest the analysis on antibiotic residue in chicken ("Hatching superbugs", August 1-15, 2014). I found that the data published in the article is not interpreted vis-a-vis international recommended limits. The permissible limit as per norms of the European Union (EU) or the US Food and Drug Administration (FDA) is expressed in parts per million, or PPM. The results in the article are expressed in microgram per kg. If this unit is converted into PPM, the value for antibiotic content is well within the permissible limit as per EU and FDA guidelines. In a nutshell, the issue has been exaggerated and can mislead the public. Another important point on the transmission of antibiotics
to the food chain, which is missing in the article, is the dissemination of antibioticlaced poultry feed and faecal matter discharged from poultry farms into the soil and water.
Y ASHOK BABU