Search Results - "Osterås, Olav"
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Worm control practice against gastro-intestinal parasites in Norwegian sheep and goat flocks
Published in Acta veterinaria scandinavica (13-05-2011)“…Anthelmintic treatment is the most common way of controlling nematode infections in ruminants. However, several countries have reported anthelmintic resistance…”
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Associations between somatic cell counts at calving or prior to drying-off and clinical mastitis in the remaining or subsequent lactation
Published in Journal of dairy research (01-02-2007)“…Data from 350 herds enrolled in the Norwegian Dairy Herd Recording System (NDHRS) were used to investigate the associations between the first two cow-milk…”
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3
Farmer welfare and animal welfare- Exploring the relationship between farmer’s occupational well-being and stress, farm expansion and animal welfare
Published in Preventive veterinary medicine (01-10-2019)“…•An animal welfare indicator for dairy farms is developed.•We compare an animal welfare indicator and farmer’s job-satisfaction and stress.•A link exists…”
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Association between isolation of Staphylococcus aureus one week after calving and milk yield, somatic cell count, clinical mastitis, and culling through the remaining lactation
Published in Journal of dairy research (01-02-2009)“…Cows with isolation of Staphylococcus aureus approximately 1 week after calving and milk yield, somatic cell count (SCC), clinical mastitis (CM), and culling…”
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Emergence of tick-borne diseases at northern latitudes in Europe: a comparative approach
Published in Scientific reports (24-11-2017)“…The factors that drive the emergence of vector-borne diseases are difficult to identify due to the complexity of the pathogen-vector-host triad. We used a…”
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Staphylococcus aureus and Streptococcus dysgalactiae in Norwegian herds after introduction of selective dry cow therapy and teat dipping
Published in Journal of dairy research (01-02-2007)“…The objective was to promote a reduction in the prevalence of Staphylococcus aureus and Streptococcus dysgalactiae after 2 years of selective dry cow therapies…”
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Associations between somatic cell counts at calving or prior to drying-off and future somatic cell counts, in the remaining or subsequent lactation
Published in Journal of dairy research (01-08-2006)“…Composite milk somatic cell counts (CMSCC) from four separate datasets, containing 3338, 350, 1408 and 1404 herds, were used. All herds were enrolled in the…”
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A cohort study of the effect of winter dysentery on herd-level milk production
Published in Journal of dairy science (01-08-2017)“…Winter dysentery (WD) is a contagious disease caused by bovine coronavirus. It is characterized by acute onset of diarrhea, fever, depression, and reduced milk…”
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MicroRNA expression profiles of bovine monocyte-derived macrophages infected in vitro with two strains of Streptococcus agalactiae
Published in BMC genomics (10-04-2018)“…MicroRNAs (miRNAs) are short, non-coding RNAs that regulate gene expression at the post-transcriptional level and play a key role in the control of innate and…”
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Risk factors for isolation of Staphylococcus aureus or Streptococcus dysgalactiae from milk culture obtained approximately 6 days post calving
Published in Journal of dairy research (01-02-2008)“…Milk culture results at approximately 6 d post calving were assessed in a 2-year retrospective single-cohort study in 178 Norwegian herds. A combined teat…”
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Using Biosecurity Measures to Combat Respiratory Disease in Cattle: The Norwegian Control Program for Bovine Respiratory Syncytial Virus and Bovine Coronavirus
Published in Frontiers in veterinary science (07-04-2020)“…Bovine respiratory disease (BRD) cause important health problems in all cattle husbandry systems. It contributes substantially to the use of antimicrobial…”
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Tick abundance, pathogen prevalence, and disease incidence in two contrasting regions at the northern distribution range of Europe
Published in Parasites & vectors (22-05-2018)“…Emergence of tick-borne diseases is impacting humans and livestock across the Northern Hemisphere. There are, however, large regional variations in number of…”
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Large-scale cross-sectional study of relationships between somatic cell count and milking-time test results in different milking systems
Published in Preventive veterinary medicine (01-04-2019)“…Milking-time testing (MTT) is a method for evaluating the vacuum conditions in the teatcup during milking. The purpose is to evaluate the possible impact of…”
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Transcription Profiling of Monocyte-Derived Macrophages Infected In Vitro With Two Strains of Streptococcus agalactiae Reveals Candidate Pathways Affecting Subclinical Mastitis in Cattle
Published in Frontiers in genetics (26-07-2019)“…Macrophages are key cells of innate immune response and serve as the first line of defense against bacteria. Transcription profiling of bacteria-infected…”
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Mastitis and the shape of the lactation curve in Norwegian dairy cows
Published in Journal of dairy research (01-02-2011)“…An investigation of the shape of the lactation curve and the mastitis incidence was conducted to identify whether management interventions of the lactation…”
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Housing system and herd size interactions in Norwegian dairy herds; associations with performance and disease incidence
Published in Acta veterinaria scandinavica (16-02-2010)“…According to the Norwegian animal welfare regulations, it has been forbidden to build new tie-stall barns since the end of 2004. Previous studies have shown…”
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Perinatal death in production animals in the Nordic countries – incidence and costs
Published in Acta veterinaria scandinavica (12-12-2007)Get full text
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Effect of concentrate escalation postpartum on the shape of the lactation curve and health parameters of Norwegian dairy cattle
Published in Livestock science (01-02-2012)“…A field trial testing four different concentrate escalation strategies postpartum, 0.3kg/d, 0.5kg/d, 0.7kg/d, and 1.0kg/d (concentrate amounts measured as…”
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Risk factors associated with cystic ovarian disease in Norwegian dairy cattle
Published in Acta veterinaria scandinavica (08-11-2010)“…The aims of this study were to establish the incidence of cystic ovarian disease (COD) and its geographical and seasonal variation in Norway, investigate the…”
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Possible cross-infection of Dichelobacter nodosus between co-grazing sheep and cattle
Published in Acta veterinaria scandinavica (29-03-2012)“…The aim of this study was to investigate possible cross-infection of Dichelobacter nodosus in Norwegian farms practising co-grazing of sheep and cattle…”
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