J.A. Guada

2.0k citations

69 papers · 1.7k · h-index 25

Impact in

Agronomy and Crop Science top 0.2%
- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
Animal Science and Zoology top 1%
- Animal Nutrition and Physiology
- Meat and Animal Product Quality
- Rabbits: Nutrition, Reproduction, Health

Papers in

Agronomy and Crop Science 50
- Ruminant Nutrition and Digestive Physiology 49
- Reproductive Physiology in Livestock 20
Animal Science and Zoology 25
- Animal Nutrition and Physiology 18
- Meat and Animal Product Quality 9
- Effects of Environmental Stressors on Livestock 6

Co-authors: J. Balcells (30 shared papers)C. Castríllo (42 shared papers)J. Gasa (15 shared papers)M. Fondevila (18 shared papers)D. S. Parker (1 shared paper)A. de Vega (11 shared papers)F. Vicente (6 shared papers)Susana M. Martín–Orúe (5 shared papers)
Journals: Animal Science (10 papers)Animal Feed Science and Technology (10 papers)Livestock Science (6 papers)The Journal of Agricultural Science (4 papers)Journal of Animal Physiology and Animal Nutrition (4 papers)
Partner nations: Spain United Kingdom Mexico

In The Last Decade

J.A. Guada

65 papers receiving 1.5k citations

Peers

Countries citing papers authored by J.A. Guada

Since Specialization

Citations

This map shows the geographic impact of J.A. Guada's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J.A. Guada with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.A. Guada more than expected).

Fields of papers citing papers by J.A. Guada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.A. Guada. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J.A. Guada. The network helps show where J.A. Guada may publish in the future.

Co-authors

The 25 scholars most cited alongside J.A. Guada, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J.A. Guada Line = papers co-authored together J.A. Guada links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 69 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Simultaneous determination of allantoin and oxypurines in biological fluids by high-performance liquid chromatography Journal of Chromatography B Biomedical Sciences and Applications ·J. Balcells, J.A. Guada, (unknown), D. S. Parker	1992	245
2	Urinary excretion of allantoin and allantoin precursors by sheep after different rates of purine infusion into the duodenum The Journal of Agricultural Science ·J. Balcells, J.A. Guada, C. Castríllo, J. Gasa	1991	124
3	Purine Derivative Excretion in Dairy Cows: Endogenous Excretion and the Effect of Exogenous Nucleic Acid Supply Journal of Dairy Science ·Manuel González-Ronquillo, J. Balcells, J.A. Guada, F. Vicente	2003	90
4	Excretion of purine derivatives in cows: endogenous contribution and recovery of exogenous purine bases Livestock Production Science ·P Orellana Boero, J. Balcells, Susana M. Martín–Orúe, Juan Boo Liang, J.A. Guada	2001	67
5	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 British Journal Of Nutrition ·Jonathan Erez, J. Balcells, J.A. Guada, C. Castríllo	1996	67
6	Rumen digestion and urinary excretion of purine derivatives in response to urea supplementation of sodium-treated straw fed to sheep British Journal Of Nutrition ·J. Balcells, J.A. Guada, C. Castríllo, J. Gasa	1993	65
7	Effect of replacing barley by increasing levels of olive cake in the diet of finishing pigs: Growth performances, digestibility, carcass, meat and fat quality Animal Feed Science and Technology ·M. Joven, E. Pintos, (unknown), J. Suárez-Belloch, J.A. Guada, M. Fondevila	2014	53
8	By-products from the canning industry as feedstuff for ruminants: Digestibility and its prediction from chemical composition and laboratory bioassays Animal Feed Science and Technology ·J. Gasa, C. Castríllo, M.D. Baucells, J.A. Guada	1989	43
9	Validation of the n -alkane technique to estimate intake, digestibility, and diet composition in sheep consuming mixed grain:roughage diets Australian Journal of Agricultural Research ·O. L. Valiente, P.A. Delgado, A. de Vega, J.A. Guada	2003	41
10	Study of the effect of presence or absence of protozoa on rumen fermentation and microbial protein contribution to the chyme1 Journal of Animal Science ·Alejandro Belanche, Leticia Abecia, Grietje Holtrop, J.A. Guada, C. Castríllo, Gabriel de la Fuente, J. Balcells	2011	40
11	The effect of protein restriction during the growing period on carcass, meat and fat quality of heavy barrows and gilts Meat Science ·J. Suárez-Belloch, (unknown), J.A. Guada	2015	37
12	Effect of dietary starch source on growth performances, digestibility and quality traits of growing pigs Livestock Science ·S. Doti, J. Suárez-Belloch, (unknown), J.A. Guada, M. Fondevila	2014	37
13	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 Animal Science ·J. F. Pérez, J. Balcells, J.A. Guada, C. Castríllo	1997	37
14	Tomato pomace as a protein supplement for growing lambs Small Ruminant Research ·M. Fondevila, J.A. Guada, J. Gasa, C. Castríllo	1994	35
15	Urinary excretions of purine derivatives and nitrogen in sheep given straw supplemented with different sources of carbohydrates Animal Science ·J. Balcells, M. Fondevila, J.A. Guada, C. Castríllo, Joaquín C. Surra	1993	34
16	Microbial nitrogen production in growing heifers: direct measurement of duodenal flow of purine bases versus urinary excretion of purine derivatives as estimation procedures Animal Feed Science and Technology ·Susana M. Martín–Orúe, J. Balcells, J.A. Guada, M. Fondevila	2000	33
17	Contribution of dietary purine bases to duodenal digesta in sheep. In situ studies of purine degradability corrected for microbial contamination Animal Feed Science and Technology ·J. F. Pérez, C. Rodríguez, J. González, J. Balcells, J.A. Guada	1996	31
18	Diet selection by growing lambs offered whole barley and a protein supplement, free choice: Effects on performance and digestion Livestock Science ·A.R. Askar, J.A. Guada, José María González, A. de Vega, C. Castríllo	2006	31
19	In situ ruminal degradability and intestinal digestion of raw and extruded legume seeds and soya bean meal protein Journal of Animal Physiology and Animal Nutrition ·Estela Solanas, C. Castríllo, J. Balcells, J.A. Guada	2005	30
20	Effect of compound feed pelleting and die diameter on rumen fermentation in beef cattle fed high concentrate diets Animal Feed Science and Technology ·C. Castríllo, M. Mota, H. van Laar, J. Martín‐Tereso, A. Gimeno, M. Fondevila, J.A. Guada	2013	30

About J.A. Guada

J.A. Guada is a scholar working on Agronomy and Crop Science, Animal Science and Zoology, Genetics, Environmental Chemistry and Molecular Biology, having authored 69 papers that have together received 1.7k indexed citations. Recurring topics across this work include Ruminant Nutrition and Digestive Physiology (49 papers), Genetic and phenotypic traits in livestock (25 papers), Reproductive Physiology in Livestock (20 papers), Animal Nutrition and Physiology (18 papers), Meat and Animal Product Quality (9 papers), Soil and Water Nutrient Dynamics (6 papers), Effects of Environmental Stressors on Livestock (6 papers) and Turfgrass Adaptation and Management (6 papers). The work is most often cited by research in Agronomy and Crop Science (1.3k citations), Animal Science and Zoology (470 citations), Forestry (100 citations), Small Animals (160 citations) and Environmental Chemistry (203 citations). J.A. Guada has collaborated with scholars based in Spain, United Kingdom and Mexico. Frequent co-authors include J. Balcells, C. Castríllo, J. Gasa, M. Fondevila, D. S. Parker, A. de Vega, F. Vicente, Susana M. Martín–Orúe, Manuel González-Ronquillo and J. F. Pérez. Their work appears in journals such as Animal Science, Animal Feed Science and Technology, Livestock Science, The Journal of Agricultural Science and Journal of Animal Physiology and Animal Nutrition.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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J.A. Guada

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