Projects per year
Personal profile
Research
My primary research area is the reduction of methane emissions from cattle and horses.
The research work includes responsibility for quantifying methane output using methane chambers, conducting experiments with various feeding strategies and feed additives, as well as data collection and model calculations.
The focus is on the interaction between nutrition, methane emissions, production parameters, digestibility, rumen function, energy and protein metabolism, and nutritional physiological mechanisms. I am also responsible for the models and calculations that form the basis of the Danish standards for the content of nitrogen (N), phosphorus (P), and potassium (K) in livestock manure.
Keywords
- Nutrition and production
- Manure and standard values for manure
- Animal nutrition
- Greenhouse gas emissions (methane) from animal production
- Feedstuff evaluation
- Cattle
Areas of expertise
- Animal Science
- Cattle nutrition
- Enteric methane
- Feeding
- Environment and climat
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
-
Annual update of normative values for N, P and K in animal manure
Børsting, C. F. (Project manager), Sørensen, M. T. (Participant), Lund, P. (Participant), Hellwing, A. L. F. (Participant), van der Heide, M. E. (Participant), Kai, P. (Collaborator), Hansen, M. J. (Collaborator) & Adamsen, A. P. S. (Participant)
01/05/2021 → 31/12/2027
Project: Research
-
Krydsningsopfølgning (Follow-up on crossbreeding)
Kargo, M. (Project manager), Hein, L. (Participant), Hellwing, A. L. F. (Participant) & Vestergaard, M. (Participant)
01/01/2023 → 31/12/2023
Project: Research
-
Metanproduktion fra heste fodret med forskellige grovfoderrationer
Hellwing, A. L. F. (PI), Jensen, R. B. (Participant) & Clausen, E. (Participant)
01/01/2022 → 31/12/2023
Project: Research
-
Extending the Danish Normative Values for Animal Manure to include carbon to model the emission of green house gasses from farm animals, stables and storage
Børsting, C. F. (Project manager), Lund, P. (Participant), Sørensen, M. T. (Participant), Nørgaard, J. V. (Participant), Woyengo, T. A. (Participant), Weisbjerg, M. R. (Participant), Lashkari, S. (Participant), Hellwing, A. L. F. (Participant), Adamsen, A. P. S. (Participant), Dalby, F. R. (Participant), Hansen, M. J. (Participant), Kai, P. (Participant), Hafner, S. D. (Participant), Møller, H. B. (Participant), Nielsen, O.-K. (Participant), Mikkelsen, M. H. (Participant), Albrektsen, R. (Participant) & Gyldenkærne, S. (Participant)
01/06/2021 → 31/12/2025
Project: Research
-
The effect of a blend of essential oils on performance, feed conversion rate, methane emission and rumen microbiome in lactating dairy cows under Danish conditions
Børsting, C. F. (Project manager), Hellwing, A. L. F. (Participant), Lund, P. (Participant) & Noel, S. J. (Participant)
01/04/2021 → 31/12/2023
Project: Research
Research output
-
Ændringer i normtal for N og P udskillelse ab lager for økologiske grise 2025/2026
Sørensen, M. T., Hellwing, A. L. F., Sattarova, E. & Eskildsen, M., 10 Oct 2025, 9 p.. No. 2025-0793084, Oct 10, 2025. (Rådgivningsnotat fra DCA - Nationalt Center for Fødevarer og Jordbrug).Research output: Memorandum/exposition › Memorandum
Open AccessFile31 Downloads (Pure) -
A preliminary study on the effects of red Bonnemaisonia hamifera seaweed on methane emissions from dairy cows
Thorsteinsson, M. M., Schönherz, A. A., Noel, S. J., Cai, Z., Niu, Z., Hellwing, A. L. F., Lund, P., Weisbjerg, M. R. & Nielsen, M. O., Mar 2025, In: JDS Communications . 6, 2, p. 217-222 6 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access2 Citations (Scopus) -
Early life interventions in dairy calves for persistent methane mitigation.
Maigaard, M., Giagnoni, G., Vestergaard, M., Smith, M., Roelofs, K., Benoit, S., van der Heide, M. E., Hellwing, A. L. F. & Lund, P., Dec 2025, Proceedings of the 9th International Greenhouse Gas & Animal Agriculture Conference.Research output: Contribution to book/anthology/report/proceeding › Article in proceedings › Research › peer-review
File -
Effects of feeding beets and ensiled beets on postabsorptive ethanol metabolism and enteric gas emission in dairy cows
Hvas, E. M. V., Hanigan, M. D., Weisbjerg, M. R., Hellwing, A. L. F. & Larsen, M., Sept 2025, In: Journal of Dairy Science. 108, 9, p. 9433-9448 16 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access1 Citation (Scopus) -
Enteric methane mitigation in dairy heifers: The effect of Bovaer in different doses
Maigaard, M., Hellwing, A. L. F., Lund, P. & Vestergaard, M., Oct 2025, Proceedings of the 9th International Greenhouse Gas & Animal Agriculture Conference (GGAA).Research output: Contribution to book/anthology/report/proceeding › Article in proceedings › Research › peer-review
Activities
-
NSERC Industrial Research Chair for Colleges in Marine Macroalgae, Cégep de la Gaspésie et des Îles, Grande-Rivière, Québec, Canada
Hellwing, A. L. F. (Member)
21 Feb 2024 → 14 Mar 2024Activity: Presentations, memberships, employment, ownership and other activities › Member of evaluation panel
-
Methane emission from rose veal calves feed a corn cob silage-based or grass silage-based ration
Hellwing, A. L. F. (Lecturer) & Vestergaard, M. (Lecturer)
31 Aug 2023Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
-
Methane Emission from purebred Holstein, Nordic Red an F1 crossbred cows of the tow breeds
Hellwing, A. L. F. (Lecturer), Vestergaard, M. (Lecturer) & Kargo, M. (Lecturer)
31 Aug 2023Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
-
In vitro gas production of pre-treated or untreated feedstuffs using cecum inoculum from horses
Jensen, R. (Lecturer), Jensen, R. B. (Lecturer), Nielsen, M. O. (Lecturer) & Hellwing, A. L. F. (Lecturer)
29 Aug 2023Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
-
74th Annual Meeting of European Federation of Animal Science
Hellwing, A. L. F. (Participant)
26 Aug 2023 → 1 Sept 2023Activity: Participating in or organising an event types › Participation in or organisation af a conference
Press/Media
-
Køerne tager prisen, men: 175.000 heste forurener også med metan
23/10/2023
1 item of Media coverage
Press/Media: Press / Media
-
-
Portrætudsendelse om Forskningscenter Foulum
27/01/2011
1 Media contribution
Press/Media: Press / Media