Thymol

thymolbehandlung_20170128

In the 1990s, the Bee Research Centre took part in a screening programme testing the potential effectiveness of over 100 essential oils and essential oil components against the varroa mite. Although sage, hyssop and thyme oils proved interesting, only thymol has been used in acaricide products. Thymol treatments require little effort, and there are a variety of preparations on the market. The advantages and drawbacks of thymol use are listed in the articles "Apilife VAR: A new varroacide with thymol as the main ingredient" and "THYMOVAR for Varroa control".

Use of essential oils for the control of Varroa jacobsoni (Oud.) in honey bee colonies (PDF, 1 MB, 20.01.2017)
A. Imdorf, S. Bogdanov, R. Ibáñez Ochoa, N. W. Calderone (1999)

Elenco di pubblicazione

Elenco di pubblicazione

Pubblicazioni Frigga Dohme-Meier

Reiche A.-M., Tretola M., Eggerschwiler L., Pinotti L., Dohme-Meier F.
Former food and cocoa bean shells in early-lactating cows on a herbage-based diet: Effects on ruminal fermentation and blood metabolites.
Animal, 19, (4), 2025, Articolo 101477.

Eichinger J., Reiche A.-M., Eggerschwiler L., Tretola M., Pinotti L., Tintrop L., Fuchsmann P., Huber K., Dohme-Meier F.
Exploring exhaled volatile organic compounds as new indicators for the energy balance of dairy cows: A comparison with serum β-hydroxybutyrate.
In: GfE. 4 March, Ed. Gesellschaft für Ernährungsphysiologie, Göttingen (DE). 2025.

Hendricks J., Reiche A.-M., Eichinger J., Siegenthaler R., Eggerschwiler L., Silacci P., Dohme-Meier F.
Effect of a subclinical ketosis challenge on biomarkers of energy metabolism and liver function and their variability in dairy cows during the transition period.
In: 79th Conference of the Society of Nutrition Physiology. 4 - 6 March, Ed. Society of Nutrition Physiology, Göttingen (DE). 2025, 116.

Dohme-Meier F., Lazzari G., Manzocchi E., Zähner M., Schrade S.
Kondensierte Tannine: Eine Möglichkeit die Proteinverwertung von Wiederkäuern bei grünlandbasierter Fütterung zu verbessern?
In: 23. BOKU Symposium. 27. Februar, Ed. BOKU University, Wien (AT). 2025, 12-15.

Hendricks J., Reiche A.-M., Eichinger J., Siegenthaler R., Eggerschwiler L., Silacci P., Dohme-Meier F.
Effect of a subclinical ketosis challenge on biomarkers of energy metabolism and liver function and their variability in dairy cows during the transition period.
In: 79. Tagung der Gesellschaft für Ernährungsphysiologie. 6. März, Ed. Gesellschaft für Ernährungsphysiologie, Göttingen (DE). 2025.

Eichinger J., Reiche A.-M., Eggerschwiler L., Tretola M., Pinotti L., Tintrop L., Fuchsmann P., Huber K., Dohme-Meier F.
Exploring exhaled volatile organic compounds as new indicators for the energy balance of dairy cows:: A comparison with serum β-hydroxybutyrate.
In: GfE. 4. März, Göttingen (DE). 2025.

Eichinger J., Reiche A.-M., Fuchsmann P., Eggerschwiler L., Münger A., Huber K., Dohme-Meier F.
Pathway mapping of exhaled volatile organic compounds associated with blood and ruminal fluid metabolites to describe the nutritional and metabolic status of lactating dairy cows.
Journal of Dairy Science, 108, (3), 2025, 2947-2963.

Eichinger J., Reiche A.-M., Münger A., Eggerschwiler L., Pimentel G., Fuchsmann P., Huber K., Dohme-Meier F.
Usability of volatile organic compounds from exhaled breath compared with those from ruminal fluid, serum, urine, and milk to identify diet-specific metabolite profiles in lactating dairy cows.
Journal of Dairy Science, 108, (2), 2025, 1474-1494.

Mehaba Fedila N., Schrade S., Keck M., Dohme-Meier F., Schlegel P.
Modélisation : Production d’engrais par un troupeau laitier.
In: 12e Conférence sur la durabilité. 23 janvier, Ed. Agroscope, Zürich (CH). 2025.

Tiercin A., Oltramare C., Sallembien Z., Dohme-Meier F., Berthet A., Zennegg M., Vernez D., Lerch S.
Transfert des dioxines depuis le sol vers le lait et la viande de ruminants et évaluation du risque pour la santé humaine.
In: Rencontres Recherches Ruminants (27e édition). 4 - 5 décembre, Ed. IDELE / INRAE, Paris (FR). 2024, 476.

Manzocchi E., Rothacher M., Vonlanthen T., Hayoz B., Dubois S., Hiltbrunner J., Dohme-Meier F.
Digestibilité apparente in vivo de l'ensilage de sorgho fourrager.
In: Rencontres Recherches Ruminants (27e édition). 4 - 5 décembre, Ed. IDELE / INRAE, Paris (FR). 2024, 521.

Manzocchi E., Viry L., Eggerschwiler L., Hayoz B., Schlegel P., Dohme-Meier F.
Affouragement en vert de sorgho multi-coupes : Effets sur l'ingestion, la production, la composition et l'aptitude à la coagulation du lait.
In: Rencontres Recherches Ruminants (27e édition). 4 - 5 décembre, Ed. IDELE / INRAE, Paris (FR). 2024, 520.

Eichinger J., Reiche A.-M., Dohme-Meier F., Fuchsmann P. Y. G.
Solid phase extraction cartridges for sampling exhaled volatile organic compounds from dairy cows.
In: Exhalomics Forum. 27. September, Ed. Zürich Exhalomics, Zürich. 2024, 1.

Zähner M. E., Pitzen L., Dohme-Meier F., Schrade S.
Reinigungsqualität von "aufnehmenden" Entmistungsrobotern für planbefestigte Flächen.
In: BTU Tagung. 11. September, Ed. LfL und KTBL, Freising (DE). 2024, 187-191.

Keil N., Dohme-Meier F., Berthel R.
Selezione delle razioni miste da parte di ovini e caprini lattiferi: Effetti sulla qualità del foraggio e sul comportamento alimentare e sociale.
Agroscope Transfer, 546, 2024, 1-17.
altre lingue: tedesco | francese

Reiche A.-M., Silacci P., Dohme-Meier F., Terlouw C.
Grazing intensity and associated frequency of human contact, and horn status, influence activity on pasture, physiological pre-slaughter reactions and meat quality in beef heifers.
Livestock Science, 289, 2024, Articolo 105578.

Mehaba N., Schrade S., Dohme-Meier F., Eggerschwiler L., Schlegel P.
Predictive modelling of dry matter intake in lactating dairy cows based on routinely available variables.
In: 75th EAAP Annual Meeting. 1 September, Ed. EAAP, Florence (IT). 2024, 1.

Mehaba N., Schrade S., Dohme-Meier F., Eggerschwiler L., Schlegel P.
Predictive modelling of dry matter intake in lactating dairy cows based on routinely available variables.
In: 75th EAAP Annual Meeting. 1 - 5 September, Ed. EAAP, Florence (IT). 2024, 357.

Morel I., Dohme-Meier F., Siegenthaler R., Hayoz B., Xavier C., Lerch S.
Protein self-sufficiency and nitrogen use efficiency in beef-on-dairy crossbred bulls.
In: Book of Abstracts of the 75th Annual Meeting of the European Federation of Animal Science. 1 September, Ed. EAAP, Firenze. 2024, 821-821.

Manzocchi E., Viry L., Eggerschwiler L., Hayoz B., Schlegel P., Dohme-Meier F.
Green-cut sorghum fed indoor to dairy cows: A strategy to mitigate herbage shortages?
In: 75th Annual Meeting of the European Federation of Animal Science. 1-5 September, Ed. EAAP, Florence (IT). 2024.

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Apilife VAR: A new varroacide with thymol as the main ingredient (PDF, 103 kB, 20.01.2017)
A. Imdorf, S. Bogdanov, V. Kilchenmann, C. Maquelin (1994)

"THYMOVAR" for Varroa control (PDF, 75 kB, 27.01.2017)
F. Bollhalder (1998)


Although the use of thymol leads to residues in the wax and honey, these are negligible from a toxicological viewpoint. Since about 2008 the use of thymol-based products has been declining in Switzerland, and beekeepers making use of these products have tended to experience greater winter losses than those using e.g. formic acid.

Thymol residues in wax and honey after Apilife VAR treatment (PDF, 757 kB, 14.09.2016)
S. Bogdanov, A. Imdorf, V. Kilchenmann (1998) 

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