Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2025
Authors
Nhat Strøm-AndersenAbstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
The study evaluated the effects of replacing whole-plant grass silage with ensiled grass pulp on dairy cow performance and enteric methane emissions. Using a controlled feeding experiment with 40 cows, the results showed reduced dry matter intake but maintained milk production and similar methane intensity due to improved feed efficiency in cows fed pulp. These findings highlight the potential for grass pulp as a viable forage component in green biorefinery value chains.
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Kannan Mohan Sabariswaran Kandasamy Tamilselvan Pachiannan Krishnaswamy Ezhilan Vivekanandan Ramya Preethi Surendran Abirami Ramu GanesanAbstract
The search for renewable and sustainable energy sources is increasing worldwide, urges the identification of biofuels from insects. The possibility of producing biodiesel and biogas from insects has gained significant attention as a better alternative to conventional fossil fuels. This approach is due to the presence of high lipid and protein contents of certain insect species, including black soldier fly larvae, mealworms and crickets, which can be cultivated on organic waste streams. Insects such as black soldier flies and mealworms require minimal water and land for cultivation, and their waste-based diet reduces environmental impacts while promoting waste valorization compared to traditional biofuel feedstocks. Insects’ lipids can be extracted and converted into biodiesel through transesterification, while the remaining biomass, rich in proteins and other organic materials, can be anaerobically digested to produce biogas. This dual production pathway not only maximizes energy output but also generates valuable by-products, such as residual organic fertilizer. This review emphasizes the potential of insect-based biofuel conversion and its recent advances. The challenges in scaling up the process, and optimizing yields are critically evaluated. The environmental and technological parameters of the entire biofuel production process from insects are discussed in terms of their sustainability aspects.
Authors
Adam Eindride Naas Trond Simensen Lasse Torben Keetz Ingrid Vesterdal Tjessem Anders Bryn Rune Halvorsen Peter Horvath Ida Marielle Mienna Olav Skarpaas Joachim Paul Töpper Vigdis Vandvik Liv Guri Velle Catharina Caspara VloonAbstract
No abstract has been registered
Authors
Habtamu AlemAbstract
Dairy farming significantly contributes to global greenhouse gas (GHG) emissions, particularly methane (CH4). This study evaluates the performance of Norwegian dairy farms and the socio-economic factors influencing emissions over 30 years (1991-2020). We assessed dairy farm performance by evaluating both efficiency and environmental impact, with a particular focus on reducing methane emissions. This is crucial for achieving sustainable and resource-efficient farming within a circular economy framework. Methane emissions were calculated using the Intergovernmental Panel on Climate Change (IPCC) Tier 2 methodology, incorporating country-specific data on dairy cattle diet and production. Utilizing a comprehensive panel dataset of 692 dairy farms, we employed a parametric model to analyze the intricate input-output relationships within dairy production. Our findings reveal an average eco-efficiency score of 0.95, suggesting a promising potential for a 5% reduction in resource use and CH4 emissions without compromising production levels. Socio-economic factors, such as land tenure, farm experience, and government subsidies, were found to exert a positive influence on both farm performance and GHG emissions. Conversely, higher debt-to-asset ratios were associated with lower performance. Our research underscores the necessity for policies that support improvements at the farm level, such as facilitating knowledge transfer among farmers and increasing access to subsidies for environmentally friendly technologies. Future research should delve into other environmental impacts, including nitrogen emissions and biodiversity, to establish a more comprehensive framework for sustainable agricultural practices. By identifying opportunities for reducing GHG emissions while maintaining productivity, this study offers valuable insights for policymakers and industry stakeholders seeking to enhance the sustainability of the dairy sector in Norway and beyond.