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MATPROG-Matprogrammet: Norsk mat fra sjø og land

CORE ORGANIC Potential improvement of the salutary effect of organic dairy milk by forage species and by supplementation (205949)

Tildelt: kr 2,8 mill.

Dairy milk and milk products have been challenged due to their relatively high concentration of saturated fatty acids (SFA) and, therefore, are considered to be associated with cardio-vascular disease and cancer. However, recent research has revealed a nu mber of ingredients in milk that may be salutary. Among these bioactive components are phytoestrogens (e.g. lignans and isoflavenoids), fatty acids (FA, e.g. c9t11 C18:2 (CLA)), vitamins (e.g. vitamin A and E), and endogenous hormones and growth factors ( e.g. estradiol, IGF-I and TGF-â). Due to a higher proportion of forage in the ration, with high proportion of legumes and other herbs, organic milk quality is more and differently affected by the forage than conventionally produced milk that often is base d on grass silage. There is limited knowledge regarding chemical and sensory characteristics of organic dairy milk internationally that has focused on organic grassland management and the milk salutary properties. The objective of proposed project is to: - investigate how different forage species affect the fatty acid composition and the content of bioactive components such as tocopherols, carotenoids, selenium (Se) and phytoestrogenes of organic dairy milk. - investigate the biological activity of the co llected dairy milk samples from the Nordic countries on normal and cancer cells. The different work packages are integrated. However, in Norway three experiments with dairy cows will be carried out. In two production experiments, milk production based on short term red clover-grass (RC) will be compared with forage from long term grassland (DS), both on pasture and on silage. In the third experiment, biohydrogenation of fatty acids in the rumen will be investigated. Four botanical different silages will b e compared, the two forage types RS and DS in addition to Lolium perenne (LP) and Phleum pratense (GS).

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MATPROG-Matprogrammet: Norsk mat fra sjø og land