World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
50
Citations
9338
World Ranking
611
National Ranking
45

Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Biochemistry
  • Enzyme

His scientific interests lie mostly in Rumen, Animal science, Dairy cattle, Dry matter and Neutral Detergent Fiber. A large part of his Rumen studies is devoted to Latin square. His Animal science study combines topics from a wide range of disciplines, such as Temperature gradient gel electrophoresis, Biochemistry, Firmicutes and Isovalerate.

His work focuses on many connections between Dairy cattle and other disciplines, such as Food science, that overlap with his field of interest in Forage and Ice calving. His Dry matter research integrates issues from Pyruvic acid, Citric acid, Lactation and Citric acid cycle, Metabolism. As a part of the same scientific family, Masahito Oba mostly works in the field of Neutral Detergent Fiber, focusing on Digestion and, on occasion, Silage.

His most cited work include:

  • Evaluation of the importance of the digestibility of neutral detergent fiber from forage: effects on dry matter intake and milk yield of dairy cows. (414 citations)
  • BOARD-INVITED REVIEW: The hepatic oxidation theory of the control of feed intake and its application to ruminants (365 citations)
  • Effects of brown midrib 3 mutation in corn silage on productivity of dairy cows fed two concentrations of dietary neutral detergent fiber: 1. Feeding behavior and nutrient utilization. (198 citations)

What are the main themes of his work throughout his whole career to date?

Masahito Oba mainly investigates Animal science, Dry matter, Rumen, Food science and Dairy cattle. His Animal science research is multidisciplinary, incorporating elements of Endocrinology, Forage, Agronomy and Internal medicine. His Dry matter study incorporates themes from Fatty acid, Lactation, Starch and Latin square.

His work deals with themes such as Hay, Digestion, Propionate and Acidosis, which intersect with Rumen. His Food science course of study focuses on Feed conversion ratio and Sunflower. His Dairy cattle research includes themes of Embryogenesis, Linolenic acid, Protein degradation and Animal fat.

He most often published in these fields:

  • Animal science (52.42%)
  • Dry matter (45.16%)
  • Rumen (44.35%)

What were the highlights of his more recent work (between 2015-2021)?

  • Animal science (52.42%)
  • Dry matter (45.16%)
  • Rumen (44.35%)

In recent papers he was focusing on the following fields of study:

The scientist’s investigation covers issues in Animal science, Dry matter, Rumen, Starch and Food science. His Animal science research incorporates themes from Meal, Fermentation, Insulin and Starter. His research in Dry matter intersects with topics in Productivity, Endocrinology, Lactation and Internal medicine.

His research investigates the connection between Rumen and topics such as Agronomy that intersect with problems in Latin square. Masahito Oba interconnects Metabolite and Ice calving in the investigation of issues within Starch. His work on Lactose and Fiber degradation as part of general Food science study is frequently linked to Microbial inoculation and Digestion, bridging the gap between disciplines.

Between 2015 and 2021, his most popular works were:

  • Assessment of microbiome changes after rumen transfaunation: implications on improving feed efficiency in beef cattle (36 citations)
  • The effects of feeding 3-nitrooxypropanol at two doses on milk production, rumen fermentation, plasma metabolites, nutrient digestibility, and methane emissions in lactating Holstein cows (29 citations)
  • Effect of increasing dietary nonfiber carbohydrate with starch, sucrose, or lactose on rumen fermentation and productivity of lactating dairy cows. (20 citations)

In his most recent research, the most cited papers focused on:

  • Internal medicine
  • Enzyme
  • Biochemistry

Masahito Oba mainly focuses on Animal science, Dry matter, Rumen, Beef cattle and Food science. His Animal science research includes elements of Meal, Internal medicine, Area under the curve, Endocrinology and Latin square. His research integrates issues of Fermentation, Lactation and Starch in his study of Dry matter.

The various areas that Masahito Oba examines in his Rumen study include Agronomy, Acidosis, Carbohydrate, Fatty acid and Digestion. His Beef cattle research integrates issues from Urea, Forage and Methane. His work deals with themes such as Microbiome and Microbial ecology, which intersect with Food science.

Best Publications

  • Evaluation of the importance of the digestibility of neutral detergent fiber from forage: effects on dry matter intake and milk yield of dairy cows.

    M. Oba;M.S. Allen

  • BOARD-INVITED REVIEW: The hepatic oxidation theory of the control of feed intake and its application to ruminants

    M. S. Allen;B. J. Bradford;M. Oba

  • Effects of brown midrib 3 mutation in corn silage on productivity of dairy cows fed two concentrations of dietary neutral detergent fiber: 1. Feeding behavior and nutrient utilization.

    M. Oba;M.S. Allen

  • Effects of Corn Grain Conservation Method on Feeding Behavior and Productivity of Lactating Dairy Cows at Two Dietary Starch Concentrations

    M. Oba;M.S. Allen

  • Effects of sampling location and time, and host animal on assessment of bacterial diversity and fermentation parameters in the bovine rumen.

    M. Li;G.B. Penner;E. Hernandez-Sanabria;M. Oba

  • Effects of brown midrib 3 mutation in corn silage on dry matter intake and productivity of high yielding dairy cows.

    M. Oba;M.S. Allen

  • Epithelial Capacity for Apical Uptake of Short Chain Fatty Acids Is a Key Determinant for Intraruminal pH and the Susceptibility to Subacute Ruminal Acidosis in Sheep

    Gregory B Penner;Jörg R Aschenbach;Gotthold Gäbel;Reiko Rackwitz

  • Effect of dietary forage to concentrate ratio on volatile fatty acid absorption and the expression of genes related to volatile fatty acid absorption and metabolism in ruminal tissue.

    G.B. Penner;M. Taniguchi;L.L. Guan;K.A. Beauchemin

  • Effects of Brown Midrib 3 Mutation in Corn Silage on Productivity of Dairy Cows Fed Two Concentrations of Dietary Neutral Detergent Fiber: 3. Digestibility and Microbial Efficiency

    M. Oba;M.S. Allen

  • Effects of corn grain conservation method on ruminal digestion kinetics for lactating dairy cows at two dietary starch concentrations

    M. Oba;M.S. Allen

  • Effects of Diet Fermentability on Efficiency of Microbial Nitrogen Production in Lactating Dairy Cows

    M. Oba;M.S. Allen

  • Increasing dietary sugar concentration may improve dry matter intake, ruminal fermentation, and productivity of dairy cows in the postpartum phase of the transition period.

    G.B. Penner;M. Oba

  • Review: Effects of feeding sugars on productivity of lactating dairy cows

    Masahito Oba

  • The effects of feeding 3-nitrooxypropanol on methane emissions and productivity of Holstein cows in mid lactation

    J. Haisan;Y. Sun;L.L. Guan;K.A. Beauchemin

  • Changes in bacterial diversity associated with epithelial tissue in the beef cow rumen during the transition to a high-grain diet.

    Yanhong Chen;Gregory B. Penner;Meiju Li;Masahito Oba

  • Diets enriched in unsaturated fatty acids enhance early embryonic development in lactating Holstein cows

    G. Thangavelu;M.G. Colazo;D.J. Ambrose;M. Oba

  • Relationship between rumen methanogens and methane production in dairy cows fed diets supplemented with a feed enzyme additive.

    M. Zhou;Y.-H. Chung;K.A. Beauchemin;L. Holtshausen

  • Effects of barley grain processing on productivity of cattle

    M. Dehghan-banadaky;R. Corbett;M. Oba

  • The potential of 3-nitrooxypropanol to lower enteric methane emissions from beef cattle.

    A. Romero-Perez;E. K. Okine;S. M. McGinn;L. L. Guan

  • Effect of calf starter feeding on gut microbial diversity and expression of genes involved in host immune responses and tight junctions in dairy calves during weaning transition

    Nilusha Malmuthuge;Meiju Li;Laksiri A. Goonewardene;Masahito Oba

  • Variation of bacterial communities and expression of Toll-like receptor genes in the rumen of steers differing in susceptibility to subacute ruminal acidosis.

    Yanhong Chen;Masahito Oba;Le Luo Guan

  • Assessment of microbiome changes after rumen transfaunation: implications on improving feed efficiency in beef cattle

    Mi Zhou;Yong-Jia Peng;Yanhong Chen;Christen M. Klinger

  • Effects of feeding a calf starter on molecular adaptations in the ruminal epithelium and liver of Holstein dairy calves.

    A.H. Laarman;A.L. Ruiz-Sanchez;T. Sugino;L.L. Guan

  • Intraruminal Infusion of Propionate Alters Feeding Behavior and Decreases Energy Intake of Lactating Dairy Cows

    Masahito Oba;Michael S. Allen

  • Short communication: Effect of calf starter on rumen pH of Holstein dairy calves at weaning

    A.H. Laarman;M. Oba

  • Evaluation of triticale dried distillers grains with solubles as a substitute for barley grain and barley silage in feedlot finishing diets

    K. T. Wierenga;T. A. McAllister;D. J. Gibb;A. V. Chaves

  • Effects of hydrolyzable tannin with or without condensed tannin on methane emissions, nitrogen use, and performance of beef cattle fed a high-forage diet.

    Isaac A Aboagye;Isaac A Aboagye;Masahito Oba;Alejandro Ramon Castillo;Karen M Koenig

  • Effect of parity and stage of lactation on feed sorting behavior of lactating dairy cows

    T.J. DeVries;L. Holtshausen;M. Oba;K.A. Beauchemin

Frequent Co-Authors

Karen A. Beauchemin
Karen A. Beauchemin Agriculture and Agriculture-Food Canada
Michael S. Allen
Michael S. Allen Michigan State University
Tim A. McAllister
Tim A. McAllister Agriculture and Agriculture-Food Canada
Le Luo Guan
Le Luo Guan University of Alberta
Michael A. Steele
Michael A. Steele University of Guelph
Vern S. Baron
Vern S. Baron Agriculture and Agriculture-Food Canada
Erasmus K. Okine
Erasmus K. Okine University of Lethbridge
W.Z. Yang
W.Z. Yang Agriculture and Agriculture-Food Canada
Trevor W. Alexander
Trevor W. Alexander Agriculture and Agriculture-Food Canada
Alexandre V. Chaves
Alexandre V. Chaves University of Sydney

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Related Online Degrees & Career Pathways

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