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Animal Science and Veterinary
Norway
2026

D-Index & Metrics

Animal Science and Veterinary

D-Index
42
Citations
9114
World Ranking
971
National Ranking
8

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

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