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Animal Science and Veterinary
Norway
2022

D-Index & Metrics

Animal Science and Veterinary

D-Index
37
Citations
6117
World Ranking
1469
National Ranking
18

Research.com Recognitions

  • 2022 - Research.com Animal Science and Veterinary in Norway Leader Award

Overview

Olav Østerås is affiliated with the Norwegian University of Life Sciences in Norway. Their research primarily spans the fields of Agricultural and Biological Sciences, Immunology and Microbiology, and Veterinary studies. They have contributed to a variety of subfields including Microbiology, Small Animals, Animal Science and Zoology, Infectious Diseases, and Agronomy and Crop Science.

Their work covers several key topics in animal health and research: microbial infections and disease research, animal virus infections studies, viral gastroenteritis research and epidemiology, milk quality and mastitis in dairy cows, genetic and phenotypic traits in livestock, animal health and immunology, and animal behavior and welfare studies.

Olav Østerås has published research in notable scientific venues, predominantly contributing to the Journal of Dairy Science, with two publications, and Frontiers in Veterinary Science, with one publication.

  • Using Biosecurity Measures to Combat Respiratory Disease in Cattle: The Norwegian Control Program for Bovine Respiratory Syncytial Virus and Bovine Coronavirus (2020, Frontiers in Veterinary Science)
  • Distribution of somatic cell count and udder pathogens in Norwegian dairy goats (2021, Journal of Dairy Science)
  • A cross-sectional study of associations between herd-level calf mortality rates, compliance with legislation on calf welfare, and milk feeding management in Norwegian dairy herds (2020, Journal of Dairy Science)

Frequent co-authors include Maria Stokstad, Thea Blystad Klem, Mette Myrmel, Veslemøy Sunniva Oma, and Ingrid Toftaker.

Best Publications

  • Economic effects of bovine mastitis and mastitis management: a review.

    Tariq Hisham Beshara Halasa;Kirsten Huijps;Olav Østerås;Henk Hogeveen

  • Calf mortality in Norwegian dairy herds.

    S.M. Gulliksen;K.I. Lie;T. Løken;O. Østerås

  • Risk factors associated with colostrum quality in Norwegian dairy cows.

    S.M. Gulliksen;K.I. Lie;L. Sølverød;O. Østerås

  • Enteropathogens and risk factors for diarrhea in Norwegian dairy calves

    S.M. Gulliksen;E. Jor;K.I. Lie;I.S. Hamnes

  • Milk Culture Results in a Large Norwegian Survey—Effects of Season, Parity, Days in Milk, Resistance, and Clustering

    O. Østerås;L. Sølverød;O. Reksen

  • Prevalence of claw lesions in Norwegian dairy cattle housed in tie stalls and free stalls.

    Å.M. Sogstad;T. Fjeldaas;O. Østerås;K. Plym Forshell

  • Dairy farmer attitudes and empathy toward animals are associated with animal welfare indicators

    Camilla Kielland;Eystein Skjerve;Olav Østerås;Adroaldo José Zanella

  • Results and evaluation of thirty years of health recordings in the Norwegian dairy cattle population.

    O. Østerås;H. Solbu;A.O. Refsdal;T. Roalkvam

  • Prevalence and risk factors for skin lesions on legs of dairy cattle housed in freestalls in Norway

    C. Kielland;L.E. Ruud;A.J. Zanella;O. Østerås

  • Lameness and Claw Lesions of the Norwegian Red Dairy Cattle Housed in Free Stalls in Relation to Environment, Parity and Stage of Lactation

    Åm Sogstad;T Fjeldaas;O Østerås

  • Meta-analysis of dry cow management for dairy cattle. Part 1. Protection against new intramammary infections

    T Halasa;O Osterås;Henk Hogeveen;T van Werven

  • Bovine claw and limb disorders related to reproductive performance and production diseases.

    Å.M. Sogstad;O. Østerås;T. Fjeldaas

  • Ten years of bovine virus diarrhoea virus (BVDV) control in Norway: a cost-benefit analysis

    Paul S. Valle;Eystein Skjerve;S. Wayne Martin;Rolf B. Larssen

  • Respiratory infections in Norwegian dairy calves.

    S.M. Gulliksen;E. Jor;K.I. Lie;T. Løken

  • Comparison of ketosis, clinical mastitis, somatic cell count, and reproductive performance between free stall and tie stall barns in Norwegian dairy herds with automatic feeding.

    J. P. Valde;D. W. Hird;Mark Thurmond;O. Østerås

  • Meta-analysis of dry cow management for dairy cattle. Part 2. Cure of existing intramammary infections.

    T Halasa;M Nielen;Anne Cathrine Whist;O Osterås

  • Blood Selenium Associated with Health and Fertility in Norwegian Dairy Herds

    E Kommisrud;O Østerås;T Vatn

  • Housing system and herd size interactions in Norwegian dairy herds; associations with performance and disease incidence

    Egil Simensen;Olav Østerås;Knut Egil Bøe;Camilla Kielland

  • Locomotion and claw disorders in Norwegian dairy cows housed in freestalls with slatted concrete, solid concrete, or solid rubber flooring in the alleys.

    T. Fjeldaas;Å.M. Sogstad;O. Østerås

  • Farmer welfare and animal welfare- Exploring the relationship between farmer's occupational well-being and stress, farm expansion and animal welfare.

    Bjørn Gunnar Hansen;Olav Østerås

  • Perinatal death in production animals in the Nordic countries – incidence and costs

    Olav Østerås;Mona Solum Gjestvang;Synnøve Vatn;Liv Sølverød

  • Cumulative risk of bovine mastitis treatments in Denmark, Finland, Norway and Sweden.

    JP Valde;LG Lawson;A Lindberg;JF Agger

  • Reproductive Performance, Udder Health, and Antibiotic Resistance in Mastitis Bacteria isolated from Norwegian Red cows in Conventional and Organic Farming

    Randi T Garmo;Steinar Waage;Ståle Sviland;Britt I F Henriksen

  • Relationships between milk culture results and treatment for clinical mastitis or culling in Norwegian dairy cattle.

    O. Reksen;L. Sølverød;A.J. Branscum;O. Østerås

  • Description of herd level criteria for good and poor udder health in Norwegian dairy cows.

    J.P. Valde;O. Østerås;E. Simensen

  • Worm control practice against gastro-intestinal parasites in Norwegian sheep and goat flocks

    Atle V M Domke;Christophe Chartier;Bjørn Gjerde;Nils Leine

  • Bovine claw and limb disorders at claw trimming related to milk yield.

    Ase M Sogstad;O Østerås;T Fjeldaas;A O Refsdal

  • Claw trimming routines in relation to claw lesions, claw shape and lameness in Norwegian dairy herds housed in tie stalls and free stalls.

    T. Fjeldaas;Å.M. Sogstad;O. Østerås

Frequent Co-Authors

Knut Egil Bøe
Knut Egil Bøe Norwegian University of Life Sciences
Åshild Krogdahl
Åshild Krogdahl Norwegian University of Life Sciences
Jan Alexander
Jan Alexander Norwegian Institute of Public Health
Henk Hogeveen
Henk Hogeveen Wageningen University & Research
Tariq Hisham Beshara Halasa
Tariq Hisham Beshara Halasa University of Copenhagen
Georg Kapperud
Georg Kapperud Norwegian Institute of Public Health
Daniel Gianola
Daniel Gianola University of Wisconsin–Madison
Adroaldo J. Zanella
Adroaldo J. Zanella Universidade de São Paulo
Mirjam Nielen
Mirjam Nielen Utrecht University
Yrjö T. Gröhn
Yrjö T. Gröhn Cornell University

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