The human health implication of the use of antimicrobial agents in animal feeds

The Veterinary Quarterly
H L DuPont, J H Steele

Abstract

Antimicrobials given in subtherapeutic levels in feed are credited with having contributed to lower cost of meat, milk and eggs. The practice often is associated with the acquisition of resistant enteric flora by the involved animals, and this may in turn contribute to the human reservoir of antimicrobial resistant coliforms and salmonellae. Associated farm workers may transiently acquire resistant flora and on rare occasions develop salmonellosis. Although irrefutable evidence of growth promotant properties of antibiotics in animal feed was provided 30 to 40 years ago, additional studies on mechanisms of the effect are presently needed. It may be possible to identify factors effective in promoting growth without deleterious effects on flora. A national surveillance programme of antimicrobial utilisation (both subtherapeutic and therapeutic) among food producing animals should be established. Molecular epidemiologic research efforts will need to be undertaken to establish whether genetic information of animal origin importantly contributes to the human environmental pool of antimicrobial resistance. In the meantime, it does not appear that the use of drugs as feed additives, while allowing their unrestricted use for therapy in ...Continue Reading

Citations

Dec 20, 2003·Journal of Controlled Release : Official Journal of the Controlled Release Society·V SnoeckB M Goddeeris
Feb 13, 2003·Preventive Veterinary Medicine·H StegeA Thougaard
Jun 26, 2015·Annals of Clinical Microbiology and Antimicrobials·Ayodele T AdesojiDouglas R Douglas
Jul 15, 2005·Journal of Food Protection·Abiodun AdesiyunKarla Georges
Oct 1, 1992·Clinical Microbiology Reviews·B S SpeerA A Salyers

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