P
Piia Kairenius
Researcher at Natural Resources Institute Finland
Publications - 25
Citations - 745
Piia Kairenius is an academic researcher from Natural Resources Institute Finland. The author has contributed to research in topics: Rumen & Silage. The author has an hindex of 11, co-authored 24 publications receiving 650 citations.
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Book ChapterDOI
Trans fatty acids and bioactive lipids in ruminant milk.
TL;DR: Developing public health policies promoting a decrease in milk, cheese, and butter consumption ignores the value of these foods as a versatile source of nutrients, as well as the importance of bioactive properties in milk and fermented dairy products.
Journal ArticleDOI
Dietary Fish Oil Supplements Modify Ruminal Biohydrogenation, Alter the Flow of Fatty Acids at the Omasum, and Induce Changes in the Ruminal Butyrivibrio Population in Lactating Cows
Kevin J. Shingfield,Piia Kairenius,Anu Ärölä,Delphine Paillard,Stefan M. Muetzel,Seppo Ahvenjärvi,Aila Vanhatalo,Pekka Huhtanen,Vesa Toivonen,J. Mikko Griinari,R. John Wallace +10 more
TL;DR: Dose-dependent increases in ruminal outflow of biohydrogenation intermediates containing one or more trans double bonds in response to FO has major implications for host metabolism and the nutritional quality of ruminant foods.
Journal ArticleDOI
Effect of camelina oil or live yeasts (Saccharomyces cerevisiae) on ruminal methane production, rumen fermentation, and milk fatty acid composition in lactating cows fed grass silage diets
Ali R. Bayat,Piia Kairenius,Tomasz Stefanski,Heidi Leskinen,Sophie Comtet-Marre,Evelyne Forano,Frédérique Chaucheyras-Durand,Kevin J. Shingfield +7 more
TL;DR: Results indicated that live yeasts A and B had no influence on animal performance, ruminal gas production, rumen fermentation, or nutrient utilization in cows fed grass silage-based diets.
Journal ArticleDOI
Dietary fish oil supplements depress milk fat yield and alter milk fatty acid composition in lactating cows fed grass silage-based diets
Piia Kairenius,Anu Ärölä,Heidi Leskinen,Vesa Toivonen,Seppo Ahvenjärvi,Aila Vanhatalo,Pekka Huhtanen,Timo Hurme,J. M. Griinari,Kevin J. Shingfield +9 more
TL;DR: Partial least square regression analysis indicated that FO-induced milk fat depression was associated with changes in the concentrations of multiple FA in milk, and a decrease in 18:0 supply in combination with increased mammary uptake of cis-11 18:1, trans-10 18:2, and trans 20- and 22-carbon FA may contribute.
Journal ArticleDOI
Identification and Ruminal Outflow of Long-Chain Fatty Acid Biohydrogenation Intermediates in Cows Fed Diets Containing Fish Oil
TL;DR: Comparison of the intake and flow of 20-, 21- and 22-carbon fatty acids at the omasum in cows fed the Control and FO treatments suggests that the first committed steps of 20:5-3, 21:5n-3 and 22:6-3 hydrogenation in the rumen involve the reduction and/or isomerisation of double bonds closest to the carboxyl group.