Jan Lassen
Papers
2
Total Citations
57
H-Index
2
About
Jan Lassen is a leading researcher in sustainable livestock production, with a primary focus on the genetics of methane emissions in dairy cattle. Her work bridges animal science, genomics, and environmental sustainability, aiming to reduce the carbon footprint of dairy farming. A key contribution is her pioneering use of "sniffers"—non-invasive sensors installed in milking robots—to measure methane on commercial farms. In her highly cited 2018 study (33 citations), Lassen validated this approach by comparing sniffer data to gold-standard respiration chambers, demonstrating that on-farm sensors can reliably rank cows for methane output. This breakthrough enables large-scale genetic selection for lower emissions. Further advancing the field, her 2016 work (24 citations) established the genetic and genomic relationship between methane production and milk fatty acid profiles in Danish Holsteins, using both SNP-based genomic matrices and pedigree data. By linking a measurable milk trait to a hard-to-measure emission trait, Lassen provided a practical pathway for breeding low-methane cows. Her research is foundational for integrating climate goals into dairy breeding programs, making her a key figure in the global push for sustainable agriculture.
Research Focus
Key Achievements
Top Papers
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