Projects
Nina Aagaard Poulsen , Lars Wiking , Mogens Larsen & Maria Karlsson
Recent studies have shown that nitrate addition to the feed can reduce methane emissions from dairy cows by 10-20%. Thus, nitrate is one of the most promising methane-mitigating feed additives for use in dairy cattle. However, the possible transfer of nitrate to the milk is a concern as it can potentially result in elevated levels in dairy products. This makes dairies and farmers hesitant to implement nitrate. Upon arrival at the dairies, milk is not analysed for nitrate and nitrite, and there is a lack of knowledge about variations in the milk's background level of these compounds and how the variation in milk relate to breed, season, specific feed materials and the gross milk composition.
The project will collect and analyse a large number of milk samples from farmers, specific dairy lines and dairies to map the variation in nitrate and nitrite and elucidate the effect of breed and season. Furthermore, selected feed samples will be analysed for nitrate/nitrite, especially in relation to grass/maize silage and grass at different maturation levels. The nitrate/nitrite content will also be assessed relative to the other milk quality traits, including the content of riboflavin, as previous studies have documented increased riboflavin content in the milk by adding nitrate to the feed. The knowledge generated in the project is essential to ensuring that the addition of nitrate to the feed will not exceed threshold values for nitrate/nitrite in the milk and otherwise compromise milk quality.
Description
01/01-2025 → 31/12-2026
Anne Johanne Tang Dalsgaard & Nina Aagaard Poulsen
Projektet vil udvikle en ny type foder baseret på hestebønner til brug i fiskeopdræt. Fiskeopdræt kræver foder med et højt proteinindhold, hvilket traditionelt er kommet fra fiskemel, men i stigende grad erstattet af plantebaserede proteiningredienser såsom især importeret soja. Imidlertid er der behov for at udvikle mere bæredygtige foderkilder, der produceres lokalt.
Hestebønner anses som et lovende alternativ, men for at bønnerne kan anvendes som proteiningrediens i fiskefoder, skal de forarbejdes til et produkt med proteinindhold på linje med sojaproteinet. Projektet vil, først gennem screening, og senenere gennem processering af nøje udvalgte hestebønnesorter og forædlingslinjer med et højt proteinindhold udvikle et hestebønneprotein, der kan kommercialiseres som en ny proteinråvare til fiskefoder.
Projektet vil bidrage til at nedsætte akvakulturerhvervets udledning af klimagasser med et bæredygtigt, lokalproduceret proteinalternativ. Samtidig vil projektet reducere påvirkningen af miljøet fra kvælstof, idet hestebønner ikke behøver tilførsel af kvælstofholdig gødning.
Anne Johanne Tang Dalsgaard (PI), DTU Aqua
Nina Aagaard Poulsen (Deltager), Institut for fødevarer
Samarbejdspartnere: Danmarks Tekniske Universitet, Nordic Seed A/S, Aarhus Protein A/S, BioMar A/S, Aarhus Universitet
Description
01/01-2025 → 30/06-2028
Trine Kastrup Dalsgaard & Louise Juul Pedersen
01/03-2025 → 30/06-2027
Nina Aagaard Poulsen , Lotte Bach Larsen , Camilla Kjeldgaard Larsen & Stig Purup
The aim of MilkNoids is to investigate and obtain proof-of-concept of using mammary organoids from cow mammary tissue or milk for cellular milk production and to predict possible use of such in vitro secreted milk constituents depending on their ability to form components that mimic those of milk, both in terms of structure and functionality.
MilkNoids will address challenges regarding milk secretions by using novel approaches for cell culturing and harvest of secretomes and will therefore provide a basis for further research and application in the area. The results can contribute to strategies for adaptation and upscaling of the technology for the industry including assessment of the overall impact on carbon footprint.
Description
01/05-2025 → 31/12-2026
