World's Best Scientists 2026 revealed!
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Animal Science and Veterinary
Netherlands
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 70 173 162 9 9 351 15210

Johan W. Schrama publications per year

The chart shows the history of publications by Johan W. Schrama between 1980 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Johan W. Schrama published across 42 years, from 1980 to 2021, averaging 7.9 papers a year. Output peaked at 22 publications in 2021. 33 of the 332 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1980 to 2021. Vertical axis: number of publications, 0 to 22. Peak 22 publications in 2021. 1980: 2 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 1 publication 1990: 1 publication 1991: 9 publications 1992: 8 publications 1993: 7 publications 1994: 7 publications 1995: 6 publications 1996: 10 publications 1997: 9 publications 1998: 13 publications 1999: 8 publications 2000: 11 publications 2001: 18 publications 2002: 15 publications 2003: 10 publications 2004: 13 publications 2005: 16 publications 2006: 12 publications 2007: 6 publications 2008: 12 publications 2009: 5 publications 2010: 6 publications 2011: 9 publications 2012: 10 publications 2013: 16 publications 2014: 5 publications 2015: 5 publications 2016: 11 publications 2017: 11 publications 2018: 11 publications 2019: 16 publications 2020: 11 publications 2021: 22 publications
1980 2021

332 publications in total across all disciplines

View publications per year as a table
Johan W. Schrama: publications per year, 1980 to 2021
Year Publications
1980 2
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 1
1990 1
1991 9
1992 8
1993 7
1994 7
1995 6
1996 10
1997 9
1998 13
1999 8
2000 11
2001 18
2002 15
2003 10
2004 13
2005 16
2006 12
2007 6
2008 12
2009 5
2010 6
2011 9
2012 10
2013 16
2014 5
2015 5
2016 11
2017 11
2018 11
2019 16
2020 11
2021 22
Total 332
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Johan W. Schrama 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 Johan W. Schrama sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 349–353 publications, is where this scientist sits. 29–33 publications: 1 scientist 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
29–33 publications 442+

This scientist: 351 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105
89–93 84
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11 351
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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Johan W. Schrama 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 Johan W. Schrama sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 70 D-Index, is where this scientist sits. 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: 70 D-Index — 95th percentile

95% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
29 116
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13 70
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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Research.com Recognitions

  • 2026 - Research.com Animal Science and Veterinary in Netherlands Leader Award
  • 2025 - Research.com Animal Science and Veterinary in Netherlands Leader Award
  • 2023 - Research.com Animal Science and Veterinary in Netherlands Leader Award
  • 2022 - Research.com Animal Science and Veterinary in Netherlands Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Biochemistry
  • Ecology

His main research concerns Animal science, Food science, Aquaculture, Weaning and Nile tilapia. His studies deal with areas such as Body weight, Endocrinology, Internal medicine, Veterinary medicine and Fishery as well as Animal science. His Food science study integrates concerns from other disciplines, such as Feces, Dry matter, Carbohydrate and Polysaccharide.

His Aquaculture research incorporates themes from Juvenile, Clarias gariepinus, Catfish, Decapoda and Chronic stress. Johan W. Schrama works mostly in the field of Weaning, limiting it down to topics relating to Weanling and, in certain cases, Litter and CHROMIC OXIDE, as a part of the same area of interest. His work is dedicated to discovering how Nile tilapia, Tilapia are connected with Allometry and Limiting oxygen concentration and other disciplines.

His most cited work include:

  • Individual coping characteristics, rearing conditions and behavioural flexibility in pigs. (196 citations)
  • Soybean meal induces intestinal inflammation in common carp (Cyprinus carpio L.). (190 citations)
  • Dietary carbohydrates alter the fecal composition and pH and the ammonia emission from slurry of growing pigs. (169 citations)

What are the main themes of his work throughout his whole career to date?

The scientist’s investigation covers issues in Animal science, Food science, Nile tilapia, Fishery and Catfish. His Animal science research incorporates elements of Endocrinology, Internal medicine, Energy metabolism, Aquaculture and Feed conversion ratio. His studies in Food science integrate themes in fields like Rainbow trout, Dry matter and Biochemistry, Polysaccharide.

His Nile tilapia research is multidisciplinary, relying on both Ecology, Tilapia, Fish meal and Phytase. Johan W. Schrama has included themes like Zoology and Soleá, Common sole in his Fishery study. As part of one scientific family, Johan W. Schrama deals mainly with the area of Starch, narrowing it down to issues related to the Carbohydrate, and often Sugar beet.

He most often published in these fields:

  • Animal science (51.67%)
  • Food science (22.67%)
  • Nile tilapia (15.33%)

What were the highlights of his more recent work (between 2016-2021)?

  • Animal science (51.67%)
  • Nile tilapia (15.33%)
  • Food science (22.67%)

In recent papers he was focusing on the following fields of study:

His primary areas of investigation include Animal science, Nile tilapia, Food science, Oreochromis and Nutrient. Johan W. Schrama interconnects Feed conversion ratio, Rainbow trout, Soybean meal and Carbohydrate in the investigation of issues within Animal science. His Nile tilapia study combines topics from a wide range of disciplines, such as Bagasse, Tilapia, Phytase, Biomass and Fish farming.

The Food science study combines topics in areas such as Photosynthesis, Commercial fish feed, Fish meal and Tetraselmis. His Oreochromis course of study focuses on Bran and Meal and Rapeseed. The concepts of his Nutrient study are interwoven with issues in Feces, Catfish, Dry matter and Ingredient.

Between 2016 and 2021, his most popular works were:

  • Dietary supplementation of heat-treated Gracilaria and Ulva seaweeds enhanced acute hypoxia tolerance in gilthead sea bream (Sparus aurata) (33 citations)
  • Cell wall disruption increases bioavailability of Nannochloropsis gaditana nutrients for juvenile Nile tilapia (Oreochromis niloticus) (25 citations)
  • The effect of phytase, xylanase and their combination on growth performance and nutrient utilization in Nile tilapia (23 citations)

In his most recent research, the most cited papers focused on:

  • Internal medicine
  • Biochemistry
  • Ecology

Johan W. Schrama mostly deals with Nile tilapia, Food science, Animal science, Oreochromis and Nutrient. His work deals with themes such as Biomass, Intestinal morphology and Phytase, which intersect with Nile tilapia. His Food science research includes elements of Photosynthesis, Catfish, Dry matter and Commercial fish feed.

Johan W. Schrama combines subjects such as Ecology, Tilapia, Soybean meal and Aquaculture with his study of Animal science. His studies deal with areas such as Fish weight, Protein intake, Diet composition and Salinity as well as Oreochromis. His work in Nutrient tackles topics such as Rainbow trout which are related to areas like Energy balance, Animal feed, Hypoxia, Endocrinology and Hypoxia.

Best Publications

  • Soybean meal induces intestinal inflammation in common carp (Cyprinus carpio L.).

    P.A. Urán;A.A. Gonçalves;J.J. Taverne-Thiele;J.W. Schrama

  • Dietary carbohydrates alter the fecal composition and pH and the ammonia emission from slurry of growing pigs.

    T.T. Canh;A.L. Sutton;A.J.A. Aarnink;M.W.A. Verstegen

  • Effects of carbohydrate addition on production in extensive shrimp culture systems

    B. Hari;B. Madhusoodana Kurup;Johny T. Varghese;J.W. Schrama

  • Individual coping characteristics, rearing conditions and behavioural flexibility in pigs.

    J.Elizabeth Bolhuis;Willem G.P Schouten;John A.de Leeuw;Johan W Schrama

  • Influence of dietary factors on nitrogen partitioning and composition of urine and feces of fattening pigs.

    T.T. Canh;M.W.A. Verstegen;A.J.A. Aarnink;J.W. Schrama

  • Mineral requirements of fish: a systematic review

    P. Antony Jesu Prabhu;P. Antony Jesu Prabhu;P. Antony Jesu Prabhu;Johan W. Schrama;Sadasivam J. Kaushik

  • Effect of creep feed consumption on individual feed intake characteristics and performance of group-housed weanling pigs.

    E M A M Bruininx;G P Binnendijk;C M C van der Peet-Schwering;J W Schrama

  • Behavioural development of pigs with different coping characteristics in barren and substrate-enriched housing conditions

    J. Elizabeth Bolhuis;Willem G.P. Schouten;Johan W. Schrama;Victor M. Wiegant

  • Effect of stocking density and feeding level on energy expenditure and stress responsiveness in European sea bass Dicentrarchus labrax

    I. Lupatsch;G.A. Santos;J.W. Schrama;J.A.J. Verreth

  • The effect of carbohydrate addition on water quality and the nitrogen budget in extensive shrimp culture systems

    B. Hari;B. Madhusoodana Kurup;Johny T. Varghese;J.W. Schrama

  • Effects of oxygen concentration and body weight on maximum feed intake, growth and hematological parameters of Nile tilapia, Oreochromis niloticus

    An Tran-Duy;Johan W. Schrama;Anne A. van Dam;Johan A.J. Verreth

  • Soybean meal-induced enteritis in Atlantic salmon (Salmo salar L.) at different temperatures

    P.A. Urán;J.W. Schrama;J.H.W.M. Rombout;A. Obach

  • Type of dietary fibre (soluble versus insoluble) influences digestion, faeces characteristics and faecal waste production in Nile tilapia (Oreochromis niloticus L.)

    Abdolsamad K Amirkolaie;Jascha I Leenhouwers;Johan A J Verreth;Johan W Schrama

  • Individually measured feed intake characteristics and growth performance of group-housed weanling pigs: effects of sex, initial body weight, and body weight distribution within groups.

    E. M. A. M. Bruininx;C. M. C. van der Peet-Schwering;J. W. Schrama;P. F. G. Vereijken

  • Effect of gelatinization degree and inclusion level of dietary starch on the characteristics of digesta and faeces in Nile tilapia (Oreochromis niloticus (L.))

    Abdolsamad K. Amirkolaie;Johan A.J. Verreth;Johan W. Schrama

  • Chronic stress impairs performance, energy metabolism and welfare indicators in European seabass (Dicentrarchus labrax): The combined effects of fish crowding and water quality deterioration

    G.A. Santos;J.W. Schrama;R.E.P. Mamauag;J.H.W.M. Rombout

  • The Positive Impact of the Early-Feeding of a Plant-Based Diet on Its Future Acceptance and Utilisation in Rainbow Trout

    Inge Geurden;Peter Borchert;Peter Borchert;Mukundh N. Balasubramanian;Johan W. Schrama

  • Behavioural responses under different feeding methods and light regimes of the African catfish (Clarias gariepinus) juveniles

    Pablo Almazán-Rueda;Johan W Schrama;Johan A.J Verreth

  • Digesta viscosity, nutrient digestibility and organ weights in African catfish (Clarias gariepinus) fed diets supplemented with different levels of a soluble non-starch polysaccharide

    J.I. Leenhouwers;D. Adjei-Boateng;J.A.J. Verreth;J.W. Schrama

  • Individual coping characteristics, aggressiveness and fighting strategies in pigs

    J. Elizabeth Bolhuis;Willem G.P. Schouten;Johan W. Schrama;Victor M. Wiegant

  • Influence of dietary factors on the pH and ammonia emission of slurry from growing-finishing pigs.

    T.T. Canh;A.J.A. Aarnink;M.W.A. Verstegen;J.W. Schrama

Frequent Co-Authors

Johan A.J. Verreth
Johan A.J. Verreth Wageningen University & Research
Martin W. A. Verstegen
Martin W. A. Verstegen Wageningen University & Research
M.J.W. Heetkamp
M.J.W. Heetkamp Wageningen University & Research
Marc C.J. Verdegem
Marc C.J. Verdegem Wageningen University & Research
Sadasivam Kaushik
Sadasivam Kaushik University of Las Palmas de Gran Canaria
Walter J. J. Gerrits
Walter J. J. Gerrits Wageningen University & Research
L.A. den Hartog
L.A. den Hartog Wageningen University & Research
A. C. Beynen
A. C. Beynen Utrecht University
André J.A. Aarnink
André J.A. Aarnink Wageningen University & Research
Bas Kemp
Bas Kemp Wageningen University & Research

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