Blar i Brage NMBU på forfatter "Reksen, Olav"
-
The applicability of milking-time testing in automatic milking systems
Nørstebø, Håvard (PhD Thesis;2020:5, Doctoral thesis, 2020)Norsk mjølkeproduksjon forandrer seg i retning større produksjonsenheter, økende bruk av automatiske mjølkingssystemer (AMS) og reduserte økonomiske marginer. Til tross for at situasjonen har forbedret seg kraftig de siste ... -
Climate change resilience through enhanced reproduction and lactation performance in Malawian Zebu cattle
Bhatti, Muhammad Azher (Master thesis, 2016)Malawi is one of the most vulnerable countries to climate change in the world, and the site of our investigation, Bolero EPA (Extension Planning Area), Rumphi District, is particularly exposed. Climate change lead to a ... -
Deterministic modeling of the transmission dynamics of intramammary infections
Rachah, Amira; Dalen, Gunnar; Nørstebø, Håvard; Reksen, Olav; Barlow, John W. (Journal article; Peer reviewed, 2018)We present a novel deterministic modelling approach that describes the transmission dynamics of intramammary infections (IMI) caused by Corynebacterium spp. (Corynebacterium species) in a US dairy herd. Longitudinal, ... -
Dynamics of somatic cell count patterns as a proxy for transmission of mastitis pathogens
Dalen, Gunnar; Rachah, Amira; Nørstebø, Håvard; Schukken, Ynte H; Reksen, Olav (Peer reviewed; Journal article, 2019) -
Exploring dry-film ftir spectroscopy to characterize milk composition and subclinical ketosis throughout a cow’s lactation
Rachah, Amira; Reksen, Olav; Tafintseva, Valeria; Stehr, Felicia Judith Marie; Rukke, Elling-Olav; Prestløkken, Egil; Martin, Adam Dunstan; Kohler, Achim; Afseth, Nils Kristian (Peer reviewed; Journal article, 2021) -
Exploring Dry-Film FTIR Spectroscopy to Characterize Milk Composition and Subclinical Ketosis throughout a Cow’s Lactation
Rachah, Amira; Reksen, Olav; Tafintseva, Valeria; Stehr, Felicia Judith Marie; Rukke, Elling-Olav; Prestløkken, Egil; Martin, Adam Dunstan; Kohler, Achim; Afseth, Nils Kristian (Peer reviewed; Journal article, 2021)The use of technologies for measurements of health parameters of individual cows may ensure early detection of diseases and maximization of individual cow and herd potential. In the present study, dry-film Fourier transform ... -
Factors Associated with Body Weight Attainment in Calves on Smallholder Dairy Farms in Tanzania
Chang'a, Jelly S.; Løken, Torleiv; Mdegela, Robinson; Reksen, Olav (Journal article; Peer reviewed, 2012) -
Factors associated with milking-to-milking variability in somatic cell counts from healthy cows in an automatic milking system
Nørstebø, Håvard; Dalen, Gunnar; Rachah, Amira; Heringstad, Bjørg; Whist, Anne Cathrine; Nødtvedt, Ane C. W.; Reksen, Olav (Journal article; Peer reviewed, 2019)Fully automated on-line analysis equipment is available for analysis of somatic cell count (SCC) at every milking in automatic milking systems. In addition to results from on-line cell counters (OCC), an array of additional ... -
Fourier transform infrared spectral data as a tool to predict energy balance, energy- and dry matter intake in lactating dairy cows
Rachah, Amira; Reksen, Olav; Afseth, Nils Kristian; Tafintseva, Valeria; Ferneborg, Sabine; Martin, Adam Dunstan; Kohler, Achim; Prestløkken, Egil (Peer reviewed; Journal article, 2020) -
Large-scale cross-sectional study of relationships between somatic cell count and milking-time test results in different milking systems
Nørstebø, Håvard; Rachah, Amira; Dalen, Gunnar; Østerås, Olav; Whist, Anne C; Nødtvedt, Ane C. W.; Reksen, Olav (Journal article; Peer reviewed, 2019) -
Milk-flow data collected routinely in an automatic milking system - an alternative to milking-time testing in the management of teat-end condition?
Nørstebø, Håvard; Rachah, Amira; Dalen, Gunnar; Rønningen, Odd; Whist, Anne C; Reksen, Olav (Journal article; Peer reviewed, 2018) -
Multiphase modeling of intramammary infections caused by Corynebacterium species
Rachah, Amira; Dalen, Gunnar; Nørstebø, Håvard; Reksen, Olav; Barlow, John W. (Journal article; Peer reviewed, 2018) -
The detection of intramammary infections using online somatic cell counts
Dalen, Gunnar; Rachah, Amira; Nørstebø, Håvard; Schukken, Ynte H; Reksen, Olav (Journal article; Peer reviewed, 2019) -
The relationship between fatty acid profiles in milk identified by Fourier transform infrared spectroscopy and onset of luteal activity in Norwegian dairy cattle
Martin, Adam Dunstan; Afseth, Nils Kristian; Kohler, Achim; Randby, Åshild Taksdal; Eknæs, Margrete; Waldmann, Andres; Dørum, Guro; Måge, Ingrid; Reksen, Olav (Journal article; Peer reviewed, 2015)To investigate the feasibility of milk fatty acids as predictors of onset of luteal activity (OLA), 87 lactations taken from 73 healthy Norwegian Red cattle were surveyed over 2 winter housing seasons. The feasibility of ... -
Using online cell counts for detection and prediction of subclinical intramammary infections in dairy cows
Dalen, Gunnar (PhD Thesis;2020:14, Doctoral thesis, 2020)Mastitis is an inflammation of the mammary gland that can result in an elevated somatic cell count (SCC). It is mainly caused by intramammary infections (IMI). Cows with mastitis can have clinical signs (clinical mastitis) ...