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Topic · Agronomy and Crop Science

Ruminant Nutrition and Digestive Physiology

Ruminant Nutrition and Digestive Physiology is a research topic within Agronomy and Crop Science. Science Explorer counts 45k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers explores various aspects of ruminant nutrition, with a focus on strategies to optimize health, production, and environmental impact. Topics include methane production, microbial communities in the rumen, effects of dietary tannins, rumen fermentation, milk composition, feed efficiency, subacute ruminal acidosis, and fatty acid composition. The research aims to improve the understanding and management of nutritional factors affecting ruminant health and productivity.

  • Ruminant Nutrition
  • Methane Production
  • Microbial Community
  • Dietary Tannins
  • Rumen Fermentation
  • Milk Composition
  • Feed Efficiency
  • Subacute Ruminal Acidosis
  • Fatty Acid Composition
  • Forage Quality
Research works
45k
fractional, since 1950
In the world top 10%
4.4k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+1%
the tick is no change
Largest producer
United States
29% of the 10 largest, 2022-now
Ruminant Nutrition and Digestive Physiology

Which countries lead Ruminant Nutrition and Digestive Physiology research?

By volume, the United States and China publish the most (1.3k and 1.1k works in 2022-now).

By volume, 2022-now

  1. 1 United States 1.3k works
  2. 2 China 1.1k works
  3. 3 Brazil 728 works
  4. 4 India 235 works
  5. 5 Indonesia 205 works
  6. 6 Türkiye 204 works
  7. 7 Canada 197 works
  8. 8 Australia 173 works
  9. 9 Mexico 165 works
  10. 10 Italy 155 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

United States: 28.8%China: 25.2%Brazil: 16.3%India: 5.3%6 others listed: 24.5%29%largest
United States1,289 · 28.8%China1,128 · 25.2%Brazil728 · 16.3%India235 · 5.3%6 others listed1,099 · 24.5%

Shares of the rows listed above, not of the whole node.

Which institutions lead Ruminant Nutrition and Digestive Physiology research?

By volume in 2022-now, Chinese Academy of Agricultural Sciences publishes the most Ruminant Nutrition and Digestive Physiology research, followed by United States Department of Agriculture and Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement.

By volume, 2022-now

  1. 1 Chinese Academy of Agricultural SciencesChina 131 works
  2. 2 United States Department of AgricultureUnited States 81 works
  3. 3 Institut National de Recherche pour l'Agriculture, l'Alimentation et l'EnvironnementFrance 76 works
  4. 4 China Agricultural UniversityChina 69 works
  5. 5 Indian Council of Agricultural ResearchIndia 68 works
  6. 6 Universidade de São PauloBrazil 53 works
  7. 7 University of FloridaUnited States 53 works
  8. 8 Nanjing Agricultural UniversityChina 51 works
  9. 9 University of SaskatchewanCanada 49 works
  10. 10 Kansas State UniversityUnited States 49 works

Who are the leading researchers in Ruminant Nutrition and Digestive Physiology?

The most-cited researchers publishing on Ruminant Nutrition and Digestive Physiology include Rob Knight, Jun Wang and Martin McKee.

  1. 1 Rob Knight United States 468k citations
  2. 2 Jun Wang China 340k citations
  3. 3 Martin McKee United Kingdom 270k citations
  4. 4 David Tilman United States 209k citations
  5. 5 Bruce Leonard Miller United States 196k citations
  6. 6 Peter M. Visscher Australia 193k citations
  7. 7 Yuming Guo Australia 175k citations
  8. 8 Willem M. de Vos Netherlands 165k citations
  9. 9 Jens Juul Holst Denmark 163k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Ruminant Nutrition and Digestive Physiology?

The most cited paper in Ruminant Nutrition and Digestive Physiology is "Methods for Dietary Fiber, Neutral Detergent Fiber, and Nonstarch Polysaccharides in Relation to Animal Nutrition" (Peter J. Van Soest, James B. Robertson, B.A. Lewis, 1991), with 28,661 citations. Next come "A TWO‐STAGE TECHNIQUE FOR THE IN VITRO DIGESTION OF FORAGE CROPS" (6,625) and "A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability" (3,596).

Most cited papers
#PaperReleasedCitations
1 Methods for Dietary Fiber, Neutral Detergent Fiber, and Nonstarch Polysaccharides in Relation to Animal Nutrition Peter J. Van Soest, James B. Robertson, B.A. Lewis · Journal of Dairy Science Open access Oct 1991 28,661
2 A TWO‐STAGE TECHNIQUE FOR THE IN VITRO DIGESTION OF FORAGE CROPS J. M. A. Tilley, R. A. Terry · Grass and Forage Science Jun 1963 6,625
3 A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability C.J. Sniffen, John D. O’Connor, Peter J. Van Soest et al. · Journal of Animal Science Nov 1992 3,596
4 A Body Condition Scoring Chart for Holstein Dairy Cows A.J. Edmonson, I.J. Lean, Leon D. Weaver et al. · Journal of Dairy Science Open access 1989 2,961
5 Energy contributions of volatile fatty acids from the gastrointestinal tract in various species E. N. Bergman · Physiological Reviews Apr 1990 2,770
All 100 most cited papers, with filters and sorting

Where is Ruminant Nutrition and Digestive Physiology research done?

The largest centres of Ruminant Nutrition and Digestive Physiology research in 2022-now are Beijing (China), São Paulo (Brazil), Hohhot (China) and Lanzhou (China). Among places with at least 20 works in it, it is an unusually large share of all research in Carlow and Lincoln.

Largest cities, 2022-now

  1. 1 BeijingChina 240 works
  2. 2 São PauloBrazil 115 works
  3. 3 HohhotChina 84 works
  4. 4 LanzhouChina 76 works
  5. 5 NanjingChina 57 works
  6. 6 MadisonUnited States 53 works
  7. 7 GainesvilleUnited States 53 works
  8. 8 LincolnNew Zealand 50 works
  9. 9 SaskatoonCanada 50 works
  10. 10 ManhattanUnited States 50 works

Where it is the local speciality

  1. CarlowIE · 42.7 works95×
  2. LincolnNZ · 50.0 works77×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Ruminant Nutrition and Digestive Physiology than the world average.

See Ruminant Nutrition and Digestive Physiology on the map

Where is the best place to study Ruminant Nutrition and Digestive Physiology?

Among universities, judged by research, China Agricultural University, Northwest A&F University and Nanjing Agricultural University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%30%mean 20.33%fractional works in this field (log) →share of work in the world top 10% →Northwest A&F Univer…Lanzhou UniversityChina Agricultural U…Nanjing Agricultural…
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1China Agricultural UniversityChina 79.624.1%20.6×69 +21.5%
2Northwest A&F UniversityChina 75.628.1%10.4×25 +97.2%
3Nanjing Agricultural UniversityChina 74.921.0%21.9×51 +3.5%
4Lanzhou UniversityChina 73.227.8%6.7×28 +28.3%
5Wageningen University & ResearchNetherlands 68.719.0%12.7×28 -10.1%
6Inner Mongolia Agricultural UniversityChina 68.621.6%51.2×42 +170.4%
7Aarhus UniversityDenmark 67.19.8%8.0×42 +35.4%
8University College DublinIreland 66.513.5%10.8×34 +12.4%
9Gansu Agricultural UniversityChina 65.720.5%43.3×38 +220.9%
10Sichuan Agricultural UniversityChina 65.617.9%17.4×29 +73.0%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Ruminant Nutrition and Digestive Physiology, country by country

Is Ruminant Nutrition and Digestive Physiology research growing?

Output in 2022-2025 was 1% higher than in 2018-2021, peaking in 2021. The fastest-growing topics are Ruminant Nutrition and Digestive Physiology.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Ruminant Nutrition and Digestive Physiology as a percentage of every work published that year, 0.027% in 2024.

still counting0.050%0.10%Ruminant Nutrition and Digestive Physiology0.028% in 202519801990200020102020

Fractional works of Ruminant Nutrition and Digestive Physiology over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Ruminant Nutrition and Digestive Physiology9.8% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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