Perception of poultry veterinarians on the use of antimicrobials and antimicrobial resistance in egg production

Torres, Mariana Costa; Vieira, Tatiana Regina; Cardoso, Marisa; Siqueira, Franciele Maboni; Borba, Mauro Riegert

doi:10.1016/j.psj.2022.101987

Cited by 6 publications

(4 citation statements)

References 37 publications

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“…This situation leads veterinarians to feel frustrated and stigmatized, which may contribute to redirection to other antimicrobial prescribers and users, such as farmers, small-animal practitioners, and human doctors and patients for inappropriate AMU and AMR. Dairy farmers from the same region manifested similar other-blaming attitudes in our previous qualitative study [21] and the same phenomenon has been reported in poultry veterinarians and human medicine [39,40]. In our work, dairy farmers and veterinarians expressed the perception that they did not use more antimicrobials than necessary to meet their wish and duty to support animal health and welfare.…”

Section: Discussionsupporting

confidence: 84%

Understanding the role of veterinarians in antimicrobial stewardship on Canadian dairy farms: A mixed-methods study

Cobo-Ángel¹,

Roche²,

LeBlanc³

2023

PLoS ONE

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The aim of this study was to describe the factors that influence dairy cattle veterinarians´ antimicrobial prescribing, their attitudes toward reducing antimicrobial use (AMU) in the dairy industry, awareness of antimicrobial resistance (AMR), and perceived barriers to improving antimicrobial stewardship (AMS) on Canadian dairy farms. We used quantitative and qualitative research methods to consider the complexity of the antimicrobial prescription decision-making process. We designed and distributed an online survey, followed by four online focus groups with practicing veterinarians. We used frequency tables and unconditional associations to analyze quantitative data, and thematic analysis to analyze qualitative data. In total, 107 participants from four Canadian provinces responded to the survey, and 26 veterinarians participated in the focus groups. Results from both studies were triangulated to draw our key findings. We found that 1) Veterinarians must weigh numerous intra-personal and contextual considerations that could be conflicting in their decision-making process for prescribing antimicrobials. 2) Although less experienced veterinarians showed greater awareness of AMR and motivation to improve AMS than more experienced veterinarians, they also reported feeling more pressure to adapt their prescribing practices to farmers’ wishes than more experienced veterinarians. 3) Some veterinarians experienced conflict between prescribing antimicrobials to maintain animal health, productivity, and welfare, and AMS, which could result in blaming others for inappropriate antimicrobial use and reducing the opportunity to critically review their own prescribing practices. 4) There were strategies and barriers in common between veterinarians and farmers such as collaborative reviews of disease treatment protocols and improving preventive medicine on dairy farms. 5) The main barriers to reducing AMU on dairy farms reported by veterinarians were concerns about animal welfare and AMU on dairy farms without consultation with the veterinarian. Our results can inform the development of AMS programs in the Canadian dairy industry.

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Section: Discussionsupporting

confidence: 84%

Understanding the role of veterinarians in antimicrobial stewardship on Canadian dairy farms: A mixed-methods study

Cobo-Ángel¹,

Roche²,

LeBlanc³

2023

PLoS ONE

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“…In a study from Bangladesh, antimicrobials such as ciprofloxacin, amoxicillin, tetracyclines, macrolides, and others were used in layer production ( 17 ). Finally, a survey conducted in Brazil of veterinarians working with layers reported that fluoroquinolones and macrolides were two of the most common antimicrobials used ( 18 ). With different countries having different antimicrobial classes approved for use in layer chickens, and very few of the datasets including on-farm usage, it would seem ill-advised to make comparisons of AMU in the table egg industry across countries.…”

Section: Discussionmentioning

confidence: 99%

Estimates of on-farm antimicrobial usage in egg production in the United States, 2016–2021

Singer

2023

Front. Vet. Sci.

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Very few data exist globally regarding the use of antimicrobials in the table egg industry. Antimicrobial use data from broiler chickens and turkeys cannot be used as a surrogate of layer chickens because of the fact that table eggs for human consumption are produced daily by laying hens. To avoid the possibility of antimicrobial residues in the eggs, there are very few antimicrobials approved for use in layers in the U.S. The objective of this study was to collect on-farm antimicrobial use data from the U.S. table egg industry and to have it be representative of the national layer flock. Participation was voluntary. Data were collected for the period 2016 through 2021 and are reported on a calendar year basis. Using production statistics from USDA:NASS as a denominator, the data supplied by participating companies accounted for 3,016,183,140 dozen eggs (~40% of national egg production) in 2016 and 3,556,743,270 dozen eggs (~45% of national egg production) in 2021. All of the replacement chicks placed on pullet farms during the study period were estimated to have received 0.2 mg/chick gentamicin at the hatchery. Most of the antimicrobial administration in U.S. egg production is via the feed. The ionophores monensin and salinomycin were used in the pullets, bacitracin was used in both pullets and layers (primarily for control of necrotic enteritis), and chlortetracycline was used primarily in layers for the treatment of E. coli-related disease. In the layers, between 0.10 and 0.19% of total hen-days were exposed to chlortetracycline. Only two water-soluble administrations were recorded during the entire study period, both involving lincomycin to pullet flocks for the treatment of necrotic enteritis. Overall, antimicrobial use in the U.S. layer industry was focused mainly on controlling necrotic enteritis in the pullets and treating E. coli-related disease in the laying hens.

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“…Відсутність нових протимікробних препаратів, здатних боротися з резистентними штамами мікроорганізмів, і зростаюча поширеність патогенів з комплексною лікарською стійкістю дозволяє передбачити, що мікроорганізми, стійкі до протимікробних препаратів, можуть представляти собою основну загрозу здоров'ю людства в найближчі роки. Нераціональне використання протимікробних препаратів призводить до природного відбору серед мікроорганізмів, що сприяє колонізації резистентними бактеріями організму людей, а також переносу стійкості генів у патогенну та коменсальну мікробіоту (Torres et al, 2022).…”

Section: анотація у статті висвітлено результати науково-виробничого ...unclassified

The Influence of the Disinfectant "Iodopovidone" on the Biochemical Parameters of Laying Hens

Shevchenko,

Zasyekin

2023

Sučasne ptahìvnictvo

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The article reflects the results of a scientific and production experiment, the purpose of which was to carry out air sanitation in the presence of laying hens by spraying a hot fog aerosol of the disinfectant "Iodopovidon" produced by LLC "Basalt" (Ukraine), to establish its effect on the body of laying hens, livestock productivity indicators, degree of microbial air pollution in poultry premises. The experiment was carried out in accordance with the requirements of the European Convention for the Protection of Vertebrate Animals Used for Scientific Experiments or for other scientific purposes and the Law of Ukraine "On the Protection of Animals from Cruelty" on the basis of PJSC "Agrofirm Berezan Poultry Farm" during March 2023 using the group-period method, using Laying hens of the Novogen Brown cross. Biochemical studies were carried out at the Vetmedservice clinic, microbiological studies at the Department of Epizootology, Microbiology and Virology of the Faculty of Veterinary Medicine of the National University of Bioresources and Environmental Management of Ukraine. The positive effect of preventive disinfection of a poultry house for keeping laying hens with the drug “Iodopovidone” at a dose of 0.3 ml/m3 of air on poultry population productivity indicators has been established: a decrease in the percentage of deaths of chickens by 0.04%, stabilization of egg production. A decrease in microbial contamination of poultry house air by almost 100 times was revealed after preventive disinfection. On the fourth day after using the drug, stabilization of the biochemical parameters of the blood serum of laying hens was found. Disinfectant "Iodopovidon" is a promising drug for use in poultry farming. Therefore, the prospects for further research consist in the continuation of a series of research and production studies on other types of agricultural poultry, and on meat production chickens.

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Perception of poultry veterinarians on the use of antimicrobials and antimicrobial resistance in egg production

Cited by 6 publications

References 37 publications

Understanding the role of veterinarians in antimicrobial stewardship on Canadian dairy farms: A mixed-methods study

Understanding the role of veterinarians in antimicrobial stewardship on Canadian dairy farms: A mixed-methods study

Estimates of on-farm antimicrobial usage in egg production in the United States, 2016–2021

The Influence of the Disinfectant "Iodopovidone" on the Biochemical Parameters of Laying Hens

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