Reducing Antibiotics in Pig Farming – Multilevel Approach

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Pigs".

Deadline for manuscript submissions: closed (31 March 2025) | Viewed by 1889

Special Issue Editors


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Guest Editor
Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland
Interests: problems with different parameters influencing pig health and production; production and quality of colostrum; passive immunity transfer
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Guest Editor
Department of Animal Nutrition and Feed Management, Wroclaw University of Environmental and Life Sciences, J. Chełmońskiego 38D, 51-630 Wroclaw, Poland
Interests: scientific research focuses on animal nutrition and feed production, in particular, it includes the use of yeast (including beta-glucans, mannans), feed products containing isolated active substances (phytobiotics), organic and mineral forms of the elements; feed additives increasing the productivity and health of animals

Special Issue Information

Dear Colleagues,

Antibiotics can be used in animal production for therapeutic, sub-therapeutic and prophylactic purposes. Reducing antibiotic use in pig farming is a great challenge and necessity. A link was suggested between antibiotic use in feed animals and antibiotic resistance in human. Banning the use of antibiotics as a feed additives has intensified research into possibility of using other additives such as, for instance, probiotics, prebiotics, synbiotics, postbiotics, acidifires and herbs. This ban resulted from concern for human health, the observed development of antimicrobial resistance, the theoretical possibility of transfers of bacterial genes responsible for bacterial resistance between animals and humans, and animal waste pollution of the environment.

Although feed antibiotics were used to promote animal health and growth, in reality their use quite often reflected a primary goal of alleviating the negative effects of poor hygiene and management. We cannot forget about the indirect effects of their use, resulting from contact with resistant organisms that have been spread to various components of the ecosystem (soil, water) as a result of antibiotic use in farm animals.

This Special Issue invites researchers to submit either original research papers or review articles that evaluate, summarize and suggest new resolutions in animals nutrition, management and biosecurity, in addition to contributing health monitoring and prophylaxis strategies which can increase pig health, welfare and yield without the use of chemotherapeutics.

Prof. Dr. Anna Rząsa
Dr. Anna Szuba-Trznadel
Guest Editors

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Keywords

  • pigs
  • antibiotics
  • prophylactic ban
  • antibiotic alternatives
  • health protection
  • production efficiency
  • management
  • maintenance

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Published Papers (1 paper)

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Research

12 pages, 1255 KiB  
Article
Antimicrobial Susceptibility of Commensal Escherichia coli from Pig Fecal Samples and Enhanced Sensitivity for Direct Detection of the blaCTX-M Gene by Nested PCR
by Nutchaba Suchanta, Naeem Ullah, Pitak Santanirand, Nutthee Am-In and Nuntaree Chaichanawongsaroj
Animals 2024, 14(18), 2630; https://doi.org/10.3390/ani14182630 - 10 Sep 2024
Viewed by 1151
Abstract
The commensal Escherichia coli in the gut of pigs is a major reservoir of antimicrobial resistance and can result in possible transmission to humans through the food chain. Direct detection of E. coli from fecal samples is challenging and can be used as [...] Read more.
The commensal Escherichia coli in the gut of pigs is a major reservoir of antimicrobial resistance and can result in possible transmission to humans through the food chain. Direct detection of E. coli from fecal samples is challenging and can be used as a bioindicator of antimicrobial resistance. This study aimed to compare the antimicrobial susceptibility profiles in commensal E. coli from antibiotic- and nonantibiotic-using pig farms and developed the direct detection of ESBL genes in pig fecal samples using nested PCR (nPCR) and multiplex PCR (mPCR) techniques. All direct genotypic results were validated with the results of PCR sequencing of isolated E. coli colonies. The ESBL-producing E. coli were found in 98.6% (145 isolates) and 96.6% (144 isolates) of antibiotic-using and nonantibiotic-using farms, respectively, predominantly CTX-M-55. The nPCR decreased the limit of detection (LOD) from sPCR about 100 times, and the lower LODs of 102, 101, and 1 CFU/mL were reached after incubating samples in an enrichment medium for 2, 4, and 8 h, respectively. The mPCR, sPCR, and nPCR techniques showed sensitivities of 30.15%, 69.85%, and 91.91%, respectively, compared to PCR sequencing. The stability and recycling of ESBL genes were independent of antibiotic usage in commensal E. coli originating in pig farms. Full article
(This article belongs to the Special Issue Reducing Antibiotics in Pig Farming – Multilevel Approach)
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