World's Best Scientists 2026 revealed!
Ruurd T. Zijlstra

Ruurd T. Zijlstra

D-Index & Metrics

Biology and Biochemistry

D-Index
56
Citations
9479
World Ranking
14603
National Ranking
515

Ruurd T. Zijlstra publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Ruurd T. Zijlstra sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 263 publications — 71st percentile

71% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Ruurd T. Zijlstra D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Ruurd T. Zijlstra sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 56 D-Index — 28th percentile

28% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Research.com Recognitions

  • 2012 - Excellence in Nutrition and Meat Sciences, Canadian Society of Animal Science

Overview

Ruurd T. Zijlstra is a researcher affiliated with the University of Alberta in Canada. Their work primarily focuses on the fields of Agricultural and Biological Sciences, with substantial contributions in Animal Science and Zoology, Plant Science, Agronomy and Crop Science, Food Science, and Ecology.

The scientist's research centers on several main topics that include Animal Nutrition and Physiology, Phytase and its Applications, Rabbits: Nutrition, Reproduction, Health, Ruminant Nutrition and Digestive Physiology, Agriculture Sustainability and Environmental Impact, Meat and Animal Product Quality, and Probiotics and Fermented Foods.

Ruurd T. Zijlstra has authored numerous papers published across a variety of scientific journals. Notable recent publications include:

  • Review of the beneficial and anti-nutritional qualities of phytic acid, and procedures for removing it from food products, 2021, Food Research International
  • Resistant starch: Implications of dietary inclusion on gut health and growth in pigs: a review, 2021, Journal of Animal Science and Biotechnology
  • Feeding Limosilactobacillus fermentum K9-2 and Lacticaseibacillus casei K9-1, or Limosilactobacillus reuteri TMW1.656 Reduces Pathogen Load in Weanling Pigs, 2020, Frontiers in Microbiology
  • Toward Precise Nutrient Value of Feed in Growing Pigs: Effect of Meal Size, Frequency and Dietary Fibre on Nutrient Utilisation, 2021, Animals
  • Nutrient digestibility of extruded canola meal in ileal-cannulated growing pigs and effects of its feeding on diet nutrient digestibility and growth performance in weaned pigs, 2021, Journal of Animal Science

Frequent publication venues reflect Zijlstra's active engagement with journals specializing in animal science and related disciplines. These venues include:

  • Journal of Animal Science
  • Animal Feed Science and Technology
  • Animals
  • SSRN Electronic Journal
  • Translational Animal Science

Throughout their career, Ruurd T. Zijlstra has collaborated often with several coauthors, including:

  • E. Beltranena
  • Li-Fang Wang
  • Thava Vasanthan
  • Charlotte M E Heyer
  • L F Wang

Ruurd T. Zijlstra's work has been recognized within the scientific community, including receiving the Excellence in Nutrition and Meat Sciences award from the Canadian Society of Animal Science in 2012.

Best Publications

  • NONRUMINANT NUTRITION SYMPOSIUM: Controlling feed cost by including alternative ingredients into pig diets: A review

    T. A. Woyengo;E. Beltranena;R. T. Zijlstra

  • Nutritional value of wheat and corn distiller’s dried grain with solubles: Digestibility and digestible contents of energy, amino acids and phosphorus, nutrient excretion and growth performance of grower-finisher pigs

    G. P. Widyaratne;R. T. Zijlstra

  • Intestinal effects of milkborne growth factors in neonates of agricultural importance.

    Jack Odle;Ruurd T. Zijlstra;Sharon M. Donovan

  • Effects of guar gum and cellulose on digesta passage rate, ileal microbial populations, energy and protein digestibility, and performance of grower pigs.

    A. Owusu-Asiedu;J. F. Patience;B. Laarveld;A. G. Van Kessel

  • The role of gut microbiota in the health and disease of pigs

    Janelle M. Fouhse;Ruurd T. Zijlstra;Benjamin P. Willing

  • Voluntary feed intake in growing-finishing pigs: A review of the main determining factors and potential approaches for accurate predictions

    C. M. Nyachoti;R. T. Zijlstra;C. F. M. de Lange;J. F. Patience

  • Effect of feeding a milk replacer to early-weaned pigs on growth, body composition, and small intestinal morphology, compared with suckled littermates.

    Ruurd T. Zijlstra;Kwang Youn Whang;Robert A. Easter;Jack Odle

  • Effect of dietary protein content on ileal amino acid digestibility, growth performance, and formation of microbial metabolites in ileal and cecal digesta of early-weaned pigs,

    J. K. Htoo;B. A. Araiza;W. C. Sauer;W. C. Sauer;M. Rademacher

  • Effects of individual or combined xylanase and phytase supplementation on energy, amino acid, and phosphorus digestibility and growth performance of grower pigs fed wheat-based diets containing wheat millrun

    T. N. Nortey;J. F. Patience;P. H. Simmins;N. L. Trottier

  • Nonstarch Polysaccharides Modulate Bacterial Microbiota, Pathways for Butyrate Production, and Abundance of Pathogenic Escherichia coli in the Pig Gastrointestinal Tract†

    Barbara U. Metzler-Zebeli;Seema Hooda;Robert Pieper;Ruurd T. Zijlstra

  • The energy content of barley fed to growing pigs: characterizing the nature of its variability and developing prediction equations for its estimation.

    S L Fairbairn;J F Patience;H L Classen;R T Zijlstra

  • Effects of xylanase supplementation on the apparent digestibility and digestible content of energy, amino acids, phosphorus, and calcium in wheat and wheat by-products from dry milling fed to grower pigs

    T. N. Nortey;J. F. Patience;J. S. Sands;N. L. Trottier

  • Dietary calcium phosphate content and oat β‐glucan influence gastrointestinal microbiota, butyrate‐producing bacteria and butyrate fermentation in weaned pigs

    Barbara U. Metzler-Zebeli;Ruurd T. Zijlstra;Ruurd T. Zijlstra;Rainer Mosenthin;Rainer Mosenthin;Michael G. Gänzle

  • Starch with High Amylose Content and Low In Vitro Digestibility Increases Intestinal Nutrient Flow and Microbial Fermentation and Selectively Promotes Bifidobacteria in Pigs

    Prajwal R. Regmi;Barbara U. Metzler-Zebeli;Michael G. Gänzle;Theo A. T. G. van Kempen

  • The nutritional value of expeller-pressed canola meal for grower-finisher pigs.

    R. W. Seneviratne;M. G. Young;E. Beltranena;L. A. Goonewardene

  • Review of the beneficial and anti-nutritional qualities of phytic acid, and procedures for removing it from food products.

    Ehsan Feizollahi;Razieh Sadat Mirmahdi;Alaleh Zoghi;Ruurd T. Zijlstra

  • Effect of orally administered epidermal growth factor on intestinal recovery of neonatal pigs infected with rotavirus.

    Ruurd T. Zijlstra;Jack Odle;William F. Hall;Bryon W. Petschow

  • Effect of phytase and xylanase supplementation or particle size on nutrient digestibility of diets containing distillers dried grains with solubles cofermented from wheat and corn in ileal-cannulated grower pigs.

    J. L. Yáñez;E. Beltranena;M. Cervantes;R. T. Zijlstra

  • Comparison of Ileum Microflora of Pigs Fed Corn-, Wheat-, or Barley-Based Diets by Chaperonin-60 Sequencing and Quantitative PCR

    Janet E. Hill;Sean M. Hemmingsen;Blair G. Goldade;Tim J. Dumonceaux

  • Future of NSP-degrading enzymes to improve nutrient utilization of co-products and gut health in pigs☆

    R.T. Zijlstra;A. Owusu-Asiedu;P.H. Simmins

Frequent Co-Authors

Michael G. Gänzle
Michael G. Gänzle University of Alberta
John F. Patience
John F. Patience Iowa State University
Rajesh Jha
Rajesh Jha University of Hawaii at Manoa
Jennifer L. Aalhus
Jennifer L. Aalhus Agriculture and Agriculture-Food Canada
Barbara U. Metzler-Zebeli
Barbara U. Metzler-Zebeli University of Veterinary Medicine Vienna
Willem C. Sauer
Willem C. Sauer University of Alberta
Michael E. R. Dugan
Michael E. R. Dugan Agriculture and Agriculture-Food Canada
Walter J. J. Gerrits
Walter J. J. Gerrits Wageningen University & Research
Thava Vasanthan
Thava Vasanthan University of Alberta
M. R. Bedford
M. R. Bedford AmeriCorps VISTA

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