Prevalence of antibiotic residues in commercial poultry feed and meat from industrial and backyard poultry in Iquitos, Perú.
Source: PubMed, NCBI / U.S. National Library of Medicine
This study aimed to determine the presence and prevalence of antibiotics in poultry feed and poultry meat in a region with high rates of highly antimicrobial resistantinfections. Poultry feed was collected from local commercial feed stores over a period of 6 months. Standard open bag initial, growth, and fattening mixes were sampled at each commercial retailer. Meat was collected from local supermarkets, a central open-air market, and four open-air markets in small communities that raise their chicken in the community. Animal feed and meat were tested for the phenotypic presence of antibiotics using the Premi-Test, a bioassay that detects antimicrobials from multiple classes. A total of 59 poultry feed samples were obtained, of which 49.2% were found to have detectable antimicrobial additives, and this did not differ between three classes of feed despite no labeling or claims of being a product that contains antimicrobials. Meat samples from 177 industrially produced broilers from supermarkets (n = 85) and open-air markets (n = 92) were evaluated for antibiotic residues. Antibiotics were detected in 27.7% of samples with no significant differences in prevalence between the market types. An additional 99 meat samples were obtained from regional chickens purchased from open markets in urban and rural open-air markets, which had antibiotic residues in 35.4% of samples. There was no significant difference in the prevalence of antibiotic residues in meat from broilers and regional
Abstract
This study aimed to determine the presence and prevalence of antibiotics in poultry feed and poultry meat in a region with high rates of highly antimicrobial resistantinfections. Poultry feed was collected from local commercial feed stores over a period of 6 months. Standard open bag initial, growth, and fattening mixes were sampled at each commercial retailer. Meat was collected from local supermarkets, a central open-air market, and four open-air markets in small communities that raise their chicken in the community. Animal feed and meat were tested for the phenotypic presence of antibiotics using the Premi-Test, a bioassay that detects antimicrobials from multiple classes. A total of 59 poultry feed samples were obtained, of which 49.2% were found to have detectable antimicrobial additives, and this did not differ between three classes of feed despite no labeling or claims of being a product that contains antimicrobials. Meat samples from 177 industrially produced broilers from supermarkets (n = 85) and open-air markets (n = 92) were evaluated for antibiotic residues. Antibiotics were detected in 27.7% of samples with no significant differences in prevalence between the market types. An additional 99 meat samples were obtained from regional chickens purchased from open markets in urban and rural open-air markets, which had antibiotic residues in 35.4% of samples. There was no significant difference in the prevalence of antibiotic residues in meat from broilers and regional chickens. Minimally processed poultry feed and poultry meat frequently had detectable antibiotics across different sectors of the poultry production chain. Antibiotic residues were frequently detected in chicken meat, whether it was purchased in supermarkets or through open-air markets. Backyard chickens reared in the community and thought to represent a more natural food source had the same prevalence of antibiotic residues as industrially produced chicken.