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Animal Science and Veterinary
Norway
2022

D-Index & Metrics

Animal Science and Veterinary

D-Index
37
Citations
6117
World Ranking
1472
National Ranking
18

Olav Østerås publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where Olav Østerås sits on this spectrum.

29–33 publications: 1 scientists 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29 publications 442+

This scientist: 95 publications — 24th percentile

24% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

Olav Østerås D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where Olav Østerås sits on this spectrum.

20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 37 D-Index — 54th percentile

54% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

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
Augustine Arukwe
Augustine Arukwe Norwegian University of Science and Technology
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
Adroaldo J. Zanella
Adroaldo J. Zanella Universidade de São Paulo
Mirjam Nielen
Mirjam Nielen Utrecht University
Daniel Gianola
Daniel Gianola University of Wisconsin–Madison

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