Blar i Brage NMBU på forfatter "Rachah, Amira"
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A mathematical model with isolation for the dynamics of Ebola virus
Rachah, Amira (Journal article; Peer reviewed, 2018)In the absence of valid medicine and vaccine, isolation strategy is an important measure against Ebola virus outbreaks. In this paper, we present a deterministic compartmental model for assessing the impact of isolation ... -
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 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) -
Fourier transform infrared spectroscopy (FTIR) for detection and quantification of milk components for cattle health monitoring
Stehr, Felicia Judith Marie (Master thesis, 2017)Antallet automatiske melkesystemer (AMS-er) har økt jevnt de siste årene på grunn av større besetninger og høyere krav til effektivitet. Med et AMS kan kua velge når og hvor ofte hun vil melkes. Ulike målinger av kua og ... -
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) -
Pathogen-specific patterns of milking traits in automatic milking systems
Olofsson, Charlott Kjærre; Toftaker, Ingrid; Rachah, Amira; Reksen, Olav; Kielland, Camilla (Peer reviewed; Journal article, 2024)Early detection of IMI can improve animal health and welfare in dairy herds. The implementation of sensors and automatic milking systems (AMS) in dairy production inherently increases the amount of available data and hence ... -
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) -
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) ...