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Animal Science and Veterinary
Norway
2026

D-Index & Metrics

Animal Science and Veterinary

D-Index
42
Citations
9114
World Ranking
974
National Ranking
8

Birger Svihus 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 Birger Svihus 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: 111 publications — 34th percentile

34% of scientists in this discipline score the same or lower.

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

Birger Svihus 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 Birger Svihus 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: 42 D-Index — 69th percentile

69% 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

  • 2026 - Research.com Animal Science and Veterinary in Norway Leader Award
  • 2025 - Research.com Animal Science and Veterinary in Norway Leader Award
  • 2023 - Research.com Animal Science and Veterinary in Norway Leader Award
  • 2022 - Research.com Animal Science and Veterinary in Norway Leader Award

Overview

Birger Svihus is affiliated with the Norwegian University of Life Sciences in Norway, contributing extensively to research in agricultural and biological sciences. Their work spans several related subfields, including animal science and zoology, plant science, psychiatry and mental health, nutrition and dietetics, and aquatic science.

The scientist has focused primarily on topics such as animal nutrition and physiology, livestock and poultry management, and studies concerning rabbits in nutrition, reproduction, and health. Other notable research areas include phytase and its applications, plant micronutrient interactions and effects, and Moringa oleifera research and applications, with some work also touching on child nutrition and feeding issues.

Birger Svihus has authored publications in multiple scientific journals, with frequent contributions to:

  • British Poultry Science
  • SSRN Electronic Journal
  • The Journal of Applied Poultry Research
  • Animal Feed Science and Technology
  • Poultry Science

Recent research papers include:

  • Effect of crop retention time and acidification of the feed on phytase efficacy in broiler chickens (2021), published in British Poultry Science
  • Dietary fibre effects and the interplay with exogenous carbohydrases in poultry nutrition (2023), published in Animal Nutrition
  • The effect of increasing the level of oat hulls, extent of grinding and their interaction on the performance, gizzard characteristics and gut health of broiler chickens fed oat-based pelleted diets (2024), published in Animal Feed Science and Technology
  • The effect of amylase supplementation on individual variation, growth performance, and starch digestibility in broiler chickens (2023), published in Poultry Science
  • The effect of reduced feed pH, phytase addition and their interaction on mineral utilization in pigs (2021), published in Livestock Science

Frequent co-authors collaborating with Birger Svihus include:

  • K. Itani
  • Adam Smith
  • A.J. Cowieson
  • J. Apajalahti
  • S. Ghimire

Best Publications

  • Effect of starch granule structure, associated components and processing on nutritive value of cereal starch: A review

    Unknown

  • The gizzard: function, influence of diet structure and effects on nutrient availability

    B. Svihus

  • Function of the digestive system

    Birger Svihus

  • Role of insoluble non-starch polysaccharides in poultry nutrition

    H. Hetland;M. Choct;B. Svihus

  • Effects of oat hulls and wood shavings on digestion in broilers and layers fed diets based on whole or ground wheat

    H. Hetland;B. Svihus;Å. Krogdahl

  • Effect of oat hulls on performance, gut capacity and feed passage time in broiler chickens

    H Hetland;B Svihus

  • Pelleting of broiler diets: An overview with emphasis on pellet quality and nutritional value

    M.R. Abdollahi;V. Ravindran;B. Svihus

  • Physical and nutritional effects of pelleting of broiler chicken diets made from wheat ground to different coarsenesses by the use of roller mill and hammer mill

    B. Svihus;K.H. Kløvstad;V. Perez;O. Zimonja

  • Role of Insoluble Fiber on Gizzard Activity in Layers

    H. Hetland;B. Svihus;M. Choct

  • Effect of feeding whole cereals on performance, starch digestibility and duodenal particle size distribution in broiler chickens

    H Hetland;B Svihus;V Olaisen

  • Nutrient digestibility in Atlantic salmon and broiler chickens related to viscosity and non-starch polysaccharide content in different soyabean products

    Ståle Refstie;Birger Svihus;Karl D Shearer;Trond Storebakken

  • Ileal starch digestibility in growing broiler chickens fed on a wheat-based diet is improved by mash feeding, dilution with cellulose or whole wheat inclusion

    B Svihus;H Hetland

  • The effect of insoluble fiber and intermittent feeding on gizzard development, gut motility, and performance of broiler chickens

    A. Sacranie;A. Sacranie;B. Svihus;V. Denstadli;B. Moen

  • Causes for improvement in nutritive value of broiler chicken diets with whole wheat instead of ground wheat.

    B Svihus;E Juvik;H Hetland;A Krogdahl

  • Function and nutritional roles of the avian caeca: a review

    B. Svihus;M. Choct;H.L. Classen

  • Screening of nutrient digestibilities and intestinal pathologies in Atlantic salmon, Salmo salar, fed diets with legumes, oilseeds, or cereals

    M.A. Aslaksen;O.F. Kraugerud;M. Penn;B. Svihus

  • Passage rate through the anterior digestive tract of broiler chickens fed on diets with ground and whole wheat

    B Svihus;H Hetland;Mingan Choct;F Sundby

  • Starch structure and degree of starch hydrolysis of small and large starch granules from barley varieties with varying amylose content

    A. Stevnebø;S. Sahlström;B. Svihus

  • Nutrient utilization and functionality of the anterior digestive tract caused by intermittent feeding and inclusion of whole wheat in diets for broiler chickens

    B. Svihus;A. Sacranie;V. Denstadli;M. Choct

  • Effect of chemical content and physical characteristics on nutritional value of wheat, barley and oats for poultry

    B Svihus;M Gullord

  • Nutrient digestibilities and gut function in Atlantic salmon (Salmo salar) fed diets with cellulose or non-starch polysaccharides from soy

    Olav Fjeld Kraugerud;Michael Penn;Trond Storebakken;Ståle Refstie

Frequent Co-Authors

Mingan Choct
Mingan Choct University of New England
Trond Storebakken
Trond Storebakken Norwegian University of Life Sciences
Paul Iji
Paul Iji Fiji National University
Åshild Krogdahl
Åshild Krogdahl Norwegian University of Life Sciences
Anders Skrede
Anders Skrede Norwegian University of Life Sciences
Bjørn Munro Jenssen
Bjørn Munro Jenssen Norwegian University of Science and Technology
Knut Rudi
Knut Rudi Norwegian University of Life Sciences
Ingolf F. Nes
Ingolf F. Nes Norwegian University of Life Sciences
Velmurugu Ravindran
Velmurugu Ravindran Massey University
Liv Torunn Mydland
Liv Torunn Mydland Norwegian University of Life Sciences

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Related Online Degrees & Career Pathways

For those interested in expanding their expertise beyond traditional Animal Science and Veterinary studies, exploring related fields through online programs can be highly beneficial. For example, professionals seeking a focus on mental health and wellbeing might consider enrolling in marriage and family therapy masters programs online. These programs offer flexible options for gaining counseling skills that complement animal care careers, especially in therapeutic settings involving animals.

For advanced scholars, pursuing an online doctorate in counseling provides an opportunity to deepen expertise in mental health, which can intersect with veterinary behavioral studies or animal-assisted therapies. Earning a doctorate online also offers affordability and accessibility for working professionals.

If your passion lies specifically with animals, a variety of animal degrees cover diverse disciplines from wildlife management to animal nutrition. These degrees open doors to careers in research, conservation, and veterinary support roles.

Additionally, for those interested in combining leadership skills with sports and animal-related programs, exploring career options similar to an athletic director salary and career paths can offer insight into managing sports teams, including those focused on equine or service animals.

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