World's Best Scientists 2026 revealed!
Carlos Castrillo

Carlos Castrillo

D-Index & Metrics

Animal Science and Veterinary

D-Index
27
Citations
2132
World Ranking
2851
National Ranking
158

Carlos Castrillo 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 Carlos Castrillo 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: 90 publications — 21st percentile

21% of scientists in this discipline score the same or lower.

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

Carlos Castrillo 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 Carlos Castrillo 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: 27 D-Index — 13th percentile

13% of scientists in this discipline score the same or lower.

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

Overview

Carlos Castrillo is affiliated with the University of Zaragoza in Spain. The research work spans multiple areas within the agricultural and biological sciences, with specific focus on nutrition, dietetics, agronomy, animal science, physiology, and plant science.

Their research covers several main topics, including:

  • Food composition and properties
  • Ruminant Nutrition and Digestive Physiology
  • Animal Nutrition and Physiology
  • Microbial Metabolites in Food Biotechnology
  • Diet and metabolism studies
  • Botany and Plant Ecology Studies
  • Bioenergy crop production and management

Castrillo has published research in a variety of venues, with frequent publications in:

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

Recent papers authored or coauthored by Castrillo include:

  • Presentation (Chopped Versus Ground and Pelleted) of a Low-Quality Alfalfa Hay in Sheep: Effects on Intake, Feeding Behaviour, Rumen Fill and Digestion, and Passage (2025), published in Animals
  • Starch gelatinization implications for nutrient digestibility and fermentation products in the faeces of Beagle dogs (2024), published in Animal Feed Science and Technology
  • Starch Gelatinization Implications to Nutrient Digestibility and Fermentation Products in the Feces of Beagle Dogs Fed Extruded Diets (2023), published in SSRN Electronic Journal

Frequent coauthors collaborating with Castrillo include:

  • Bruna Agy Loureiro
  • Mayara Corrêa Peixoto
  • S. Schauf
  • Aulus Cavalieri Carciofí
  • Márcio Campos Oliveira

The scientist's interdisciplinary approach integrates aspects of animal nutrition and physiology with agronomy and crop science. Studies have examined starch gelatinization effects on nutrient digestibility and fermentation in dogs, as well as the impacts of forage presentation on sheep feeding behavior and digestion. This breadth of investigation situates Castrillo's work at the intersection of animal science, nutrition, and agricultural production systems.

Best Publications

  • Urinary excretion of allantoin and allantoin precursors by sheep after different rates of purine infusion into the duodenum

    J. Balcells;J. A. Guada;C. Castrillo;J. Gasa

  • Determination of rumen microbial-nitrogen production in sheep : a comparison of urinary purine excretion with methods using 15N and purine bases as markers of microbial-nitrogen entering the duodenum

    J. F. erez;J. Balcells;J. A. Guada;C. Castrillo

  • Effect of combinations of organic acids in weaned pig diets on microbial species of digestive tract contents and their response on digestibility.

    L. D. Franco;M. Fondevila;M. B. Lobera;C. Castrillo

  • Rumen digestion and urinary excretion of purine derivatives in response to urea supplementation of sodium-treated straw fed to sheep

    J. Balcells;J. A. Guada;C. Castrillo;J. Gasa

  • A comparison of purine derivatives excretion with conventional methods as indices of microbial yield in dairy cows.

    M. González-Ronquillo;Joaquín Balcells;Álvaro Belenguer;Carlos Castrillo

  • Quantification and chemical composition of mixed bacteria harvested from solid fractions of rumen digesta: effect of detachment procedure

    S.M Martı́n-Orúe;J Balcells;F Zakraoui;C Castrillo

  • Study of the effect of presence or absence of protozoa on rumen fermentation and microbial protein contribution to the chyme

    A. Belanche;L. Abecia;G. Holtrop;J. A. Guada

  • Rumen microbial production estimated either from urinary purine derivative excretion or from direct measurements of 15N and purine bases as microbial markers: effect of protein source and rumen bacteria isolates

    J. F. Pérez;J. Balcells;J. A. Guada;C. Castrillo

  • By-products from the canning industry as feedstuff for ruminants: Digestibility and its prediction from chemical composition and laboratory bioassays

    J. Gasa;C. Castrillo;M.D. Baucells;J.A. Guada

  • Urinary excretions of purine derivatives and nitrogen in sheep given straw supplemented with different sources of carbohydrates

    J. Balcells;M. Fondevila;J. A. Guada;C. Castrillo

  • Prediction of digestible energy content of extruded dog food by in vitro analyses.

    M. Hervera;M. D. Baucells;F. Blanch;C. Castrillo

  • Effect of pelleting and pellet size of a concentrate for intensively reared beef cattle on in vitro fermentation by two different approaches

    L.M.A. Bertipaglia;M. Fondevila;H. van Laar;C. Castrillo

  • Tomato pomace as a protein supplement for growing lambs

    M. Fondevila;J.A. Guada;J. Gasa;C. Castrillo

  • Effect of dietary fat to starch content on fecal microbiota composition and activity in dogs.

    Sofia Schauf;Gabriel de la Fuente;Charles J Newbold;Charles J Newbold;Anna Salas-Mani

  • Diet selection by growing lambs offered whole barley and a protein supplement, free choice: Effects on performance and digestion

    A.R. Askar;J.A. Guada;J.M. González;A. de Vega

  • Effect of type (barley vs. maize) and processing (grinding vs. dry rolling) of cereal on ruminal fermentation and microbiota of beef calves during the early fattening period

    A. Gimeno;A. Al Alami;L. Abecia;A. de Vega

  • Prediction of digestible protein content of dry extruded dog foods: comparison of methods

    M. Hervera;M. D. Baucells;G. González;E. Pérez

  • The effect of crude fibre on apparent digestibility and digestible energy content of extruded dog foods.

    C. Castrillo;F. Vicente;J. A. Guada

  • Endogenous purine and pyrimidine derivative excretion in pregnant sows.

    S. M. Martin Orue;J. Balcells;J. A. Guada;C. Castrillo

  • Influence of dietary rumen-degradable protein supply on rumen characteristics and carbohydrate fermentation in beef cattle offered high-grain diets.

    S.M Martı́n-Orue;J Balcells;F Vicente;C Castrillo

  • Effect of supplementation with different proportions of barley grain or citrus pulp on the digestive utilization of ammonia-treated straw by sheep

    Unknown

  • Effect of ammonia treatment and carbohydrate supplementation on the intake and digestibility of barley straw diets by sheep

    C. Castrillo;M. Fondevila;J.A. Guada;A. de Vega

Frequent Co-Authors

Josep Gasa
Josep Gasa Autonomous University of Barcelona
Susana M. Martín-Orúe
Susana M. Martín-Orúe Autonomous University of Barcelona
Jose Perez
Jose Perez Autonomous University of Barcelona
Pilar Frutos
Pilar Frutos Spanish National Research Council
Charles J. Newbold
Charles J. Newbold Scotland's Rural College
Pablo G. Toral
Pablo G. Toral Spanish National Research Council
Sergio Calsamiglia
Sergio Calsamiglia Autonomous University of Barcelona
Nilva Kazue Sakomura
Nilva Kazue Sakomura Sao Paulo State University
David R. Yáñez-Ruiz
David R. Yáñez-Ruiz Spanish National Research Council

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Related Online Degrees & Career Pathways

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