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Carlos Castrillo

Carlos Castrillo

D-Index & Metrics

Animal Science and Veterinary

D-Index
27
Citations
2132
World Ranking
2848
National Ranking
157

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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