Reducing crude protein content in the diet of lactating dairy cows improved nitrogen-use-efficiency and reduced N excretion in urine, whilst having no obvious effects on the rumen microbiome
The results demonstrate that diet CP can be reduced with no loss in cow performance, but with an associated reduction in N excretion. The abundance of microbial populations differed between low and high efficiency cows, which may contribute to the differences in efficiency observed.
Authors
- C.P. Ferris (ORCID: https://orcid.org/0000-0001-8623-5983)
- Nicholas J Dimonaco (ORCID: https://orcid.org/0000-0002-3808-206X)
- Abebe Zeleke (ORCID: https://orcid.org/0000-0002-0898-4441)
- Katie Lawther (ORCID: https://orcid.org/0000-0003-3562-1301)
- J. M. Moorby (ORCID: https://orcid.org/0000-0002-4449-8432)
- Anna Lavery (ORCID: https://orcid.org/0000-0003-3122-6208)
- Sharon Huws (ORCID: https://orcid.org/0000-0002-9284-2453)
Institutions
- Institute of Biological, Environmental and Rural Sciences (GB)
- Agri Food and Biosciences Institute (GB)
Publication Details
- Journal
- Journal of Animal Science and Biotechnology/Journal of animal science and biotechnology
- Published
- 2025-08-08
- DOI
- https://doi.org/10.1186/s40104-025-01240-7
- Primary Topic
- Ruminant Nutrition and Digestive Physiology
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Department of Agriculture, Environment and Rural Affairs, UK Government
- UK Research and Innovation
- Biotechnology and Biological Sciences Research Council