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Veterinary Sciences
Special Issues
Antimicrobial Resistance in Pathogenic Bacteria of Food-Producing Animal Origin
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Antimicrobial Resistance in Pathogenic Bacteria of Food-Producing Animal Origin

A special issue of Veterinary Sciences (ISSN 2306-7381). This special issue belongs to the section "Veterinary Microbiology, Parasitology and Immunology".

Deadline for manuscript submissions: closed (15 March 2023) | Viewed by 3674

Special Issue Editor

Prof. Dr. BeiBei Li

E-Mail Website
Guest Editor
Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
Interests: antimicrobial resistance; resistance mechanisms; bacterial disease of swine; vaccine; transmmission mechanism of resistance genes; Streptococcus suis; epidemiology

Special Issue Information

Dear Colleagues, 

Antimicrobial drugs are important for the prevention and treatment of bacterial infections for food-producing animals, such as swine, chicken, cattle and so on. However, due to the massive and long-term use in animal farms, antimicrobial resistance (AMR) of pathogenic bacteria is becoming a more and more serious issue, which significantly affects the control and treatment of bacterial diseases in food-animals industry.

This Special Issue of Veterinary Sciences on “Antibiotic Resistance in Pathogenic Bacteria of Food-Producing Animal Origin” aims to collect scientific researches focusing on the following topics: epidemiological investigation of AMR, resistance mechanisms, transmission of specific resistance genes, AMR diagnosis and new strategy for combating AMR in pathogenic bacteria associated with infectious diseases for all kinds of food-producing animals. Different manuscript forms, including original research, short communication, review, are all welcome in this Special Issue.

Prof. Dr. BeiBei Li
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Veterinary Sciences is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • epidemiology
  • antibiotics
  • antimicrobial resistance
  • resistance mechanisms
  • bacterial diseases
  • pathogenic bacteria
  • horizontal transfer
  • plasmid

Published Papers (2 papers)

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Research

9 pages, 577 KiB  
Communication
Reduction in Rumen Tetracycline-Insensitive Bacteria during a Grain Challenge Using the Isoflavone Biochanin A
by Michael D. Flythe, Brittany E. Davis and Isabelle A. Kagan
Vet. Sci. 2023, 10(4), 273; https://doi.org/10.3390/vetsci10040273 - 4 Apr 2023
Viewed by 1162
Abstract
The isoflavone biochanin A was previously shown to promote weight gain in growing steers by selectively inhibiting rumen bacteria-like growth-promoting feed antibiotics. The hypothesis that biochanin A inhibited the action of drug efflux pumps was tested by enumerating tetracycline-insensitive bacteria from steers in [...] Read more.
The isoflavone biochanin A was previously shown to promote weight gain in growing steers by selectively inhibiting rumen bacteria-like growth-promoting feed antibiotics. The hypothesis that biochanin A inhibited the action of drug efflux pumps was tested by enumerating tetracycline-insensitive bacteria from steers in a subacute rumen acidosis (SARA) challenge. Steers (n = 3/group) treatment groups were forage only, SARA control, SARA with monensin (0.2 g d−1), and SARA with biochanin A (6.0 g d−1). As the steers were stepped up from the forage-only basal diet to 70% cracked corn, the number of rumen bacteria enumerated on two tetracycline-containing media types (nutrient glucose agar and tetracycline, and bile esculin azide and tetracycline) increased (p < 0.05) from as little as 1.7(105) to as great as 6.7(106) cfu mL−1 on the nutrient glucose agar in the SARA and monensin control groups. The biochanin A group maintained the same number of tetracycline-insensitive bacteria as the forage-only controls (p > 0.05). The effects were similar to the more selective media type, but the differences were smaller. These results support the hypothesis that biochanin A inhibits the activity of drug efflux pumps in vivo. Full article
(This article belongs to the Special Issue Antimicrobial Resistance in Pathogenic Bacteria of Food-Producing Animal Origin)
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16 pages, 2313 KiB  
Article
Rothia nasimurium as a Cause of Disease: First Isolation from Farmed Chickens
by Jiahao Zhang, Shaojiang Mo, Hu Li, Ruizhi Yang, Xiangjie Liu, Xiaoyue Xing, Yahui Hu and Lianrui Li
Vet. Sci. 2022, 9(12), 653; https://doi.org/10.3390/vetsci9120653 - 22 Nov 2022
Cited by 4 | Viewed by 1973
Abstract
Rothia nasimurium is a facultative anaerobic Gram-positive coccus belonging to the Rothia genus of the Micrococcaceae family. While Rothia nasimurium is considered an opportunistic pathogen, to date few studies have investigated its pathogenicity and drug resistance. In January 2022, chickens at a poultry [...] Read more.
Rothia nasimurium is a facultative anaerobic Gram-positive coccus belonging to the Rothia genus of the Micrococcaceae family. While Rothia nasimurium is considered an opportunistic pathogen, to date few studies have investigated its pathogenicity and drug resistance. In January 2022, chickens at a poultry farm in China’s Xinjiang Uygur Autonomous Region became ill and died. Treatment with commonly used Chinese medicines and antibiotics was ineffective, causing economic losses to the poultry farm. In order to determine the cause of the disease in these poultry farm chickens, the isolation and identification of the pathogens in the livers and other internal organs of the sick and dead chickens were performed. Further, animal pathogenicity tests, antibiotic susceptibility tests, and the detection of antibiotic resistance genes were carried out to analyze the pathogenicity and drug resistance of the identified pathogens. A Gram-positive coccus was isolated from the livers of the diseased chickens. The isolate was resistant to 17 antibiotics, including ciprofloxacin, chloramphenicol, and florfenicol, and was only sensitive to penicillin, amikacin, and tigecycline, to varying degrees. The results of the drug resistance gene testing indicated that the isolated bacterium carried 13 kinds of resistance genes. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, morphological observations, biochemical tests, and 16S rRNA gene sequence analysis were performed on the isolated bacterium, and it was determined that the isolated bacterial strain was Rothia nasimurium. The animal pathogenicity tests showed that the isolate caused feather loss and death in chicks; the clinical symptoms and necropsy lesions of the test chicks were consistent with those observed in the farmed chickens. A review of the literature revealed that, to date, there are no reports of infection with Rothia nasimurium in chickens. Thus, in this study, Rothia nasimurium was isolated from chickens for the first time and an investigation of the biological characteristics of the bacterium was carried out in order to provide a reference for the clinical treatment, prevention, and control of Rothia nasimurium infection. Full article
(This article belongs to the Special Issue Antimicrobial Resistance in Pathogenic Bacteria of Food-Producing Animal Origin)
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