Abiotec II - Antibiotics in Manure and Digestate - Program

The workshop was part of a Thuringian project called ABIOTEC II, which aimed to addess methods and technological solutions for reduction of antibiotics in environmental compartments

Protecting livestock in modern intensive animal husbandry is typically based on the use of specialized veterinary pharmaceuticals. Through the use of the excretion products, there is a direct or indirect application onto agricultural areas and into the water cycle.

The fermentation of manure might be suitable as a process, which reduces the potential for environmental toxicological harm from certain substances, but it can also pose environmental risks. Are there other methodological approaches or procedures to reduce the pollutant input and thus to reduce the pollution? Which factors should be prioritized in order to be used in everyday agricultural life? Does reducing or even eliminating antibiotics solve the problem? And perhaps most importantly – how can we monitor it?

On April 17th and 18th in Weimar researchers from Germany, Netherlands, Denmark and USA shared their results on topics such as how antibiotics affect soil, the alteration of the soil microbiome and the role of antibiotic resistant bacteria and genes, as well as effects they have observed in treatment options, and approaches for monitoring.

Abiotec II Versuche

Day 1, April 17th, 2023

12:30

Registration and snacks / light lunch

13:30

Welcome to the ABIOTEC II Workshop

Dr. rer. nat. E.- Peter Kulle, MFPA Weimar

Burkhard Danz, MFPA Weimar

Angela Clinkscales, Institute for Biogas, Waste Management and Energy

13:45

ABIOTEC I and II

Carl Telle, MFPA Weimar 

14:10

Bio2Geo

Philipp Lorber, Bauhaus University Weimar

14:30

Management options for reducing the transfer of antibiotics, and antibiotic resistant bacteria (online)

Lisa Durso, Ph.D., USDA Agricultural Research Service, Agroecosystem Management Research Unit

15:00

Coffee break

Impact of manure and digestate application on farmlands on antibiotic resistance genes

15:30

The fate of antibiotics in manure after soil application

Bjorn Berendsen, PhD, Wageningen Food Safety Research

16:00

Manure affects the fate of antibiotics in soil

Prof. Dr. agr. habil. Sören Thiele-Bruhn, Trier University

16:30

Short break

16:40

Fate of Disinfectant Quaternary Alklyammonium Compounds in Biogas Digestates, Manures and Soils

Dr. Ines Mulder, Justus-Liebig University Giessen

17:00

Antibiotic and disinfectant resistant bacteria in manure and biogas plant digestates

Dr. rer. nat. Stefanie Glaeser, Justus-Liebig University Giessen

17:20

Fate of antibiotic residues, antibiotic-resistant bacteria, and antibiotic resistance genes in US dairy manure management systems (online)

Carlton Poindexter, Ph.D., University of Maryland

 

17:50

Concluding Remarks for Day 1

19:00

Dinner and Discussion

Day 2, April 18th, 2023

Approaches for monitoring antibiotic use

8:30

Monitoring locally – non-target analysis for establishing orientation values (online)

Assoc. Prof. Martin Hansen, Aarhus University

9:00

Monitoring antibiotic use in the poultry sector

Bjorn Berendsen, PhD, Wageningen Food Safety Research

9:30

Discussion in groups on selected questions / topics

10:30

Break

11:00

Presentation of results and feedback from stakeholders

12:00

Closing Remarks

12:30

Snacks / light lunch

Funded by

Organized by

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