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R.P. Kwakkel

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 34 1901 1744 60 57 174 3831

R.P. Kwakkel publications per year

The chart shows the history of publications by R.P. Kwakkel between 1986 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R.P. Kwakkel published across 40 years, from 1986 to 2025, averaging 5.5 papers a year. Output peaked at 12 publications in 2008. 15 of the 220 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1986 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2008. 1986: 1 publication 1987: 1 publication 1988: 1 publication 1989: 3 publications 1990: 0 publications 1991: 2 publications 1992: 1 publication 1993: 4 publications 1994: 2 publications 1995: 6 publications 1996: 6 publications 1997: 7 publications 1998: 3 publications 1999: 7 publications 2000: 7 publications 2001: 6 publications 2002: 7 publications 2003: 10 publications 2004: 9 publications 2005: 7 publications 2006: 8 publications 2007: 5 publications 2008: 12 publications 2009: 2 publications 2010: 5 publications 2011: 7 publications 2012: 7 publications 2013: 11 publications 2014: 12 publications 2015: 6 publications 2016: 2 publications 2017: 4 publications 2018: 1 publication 2019: 8 publications 2020: 3 publications 2021: 7 publications 2022: 9 publications 2023: 6 publications 2024: 6 publications 2025: 9 publications
1986 2025

220 publications in total across all disciplines

View publications per year as a table
R.P. Kwakkel: publications per year, 1986 to 2025
Year Publications
1986 1
1987 1
1988 1
1989 3
1990 0
1991 2
1992 1
1993 4
1994 2
1995 6
1996 6
1997 7
1998 3
1999 7
2000 7
2001 6
2002 7
2003 10
2004 9
2005 7
2006 8
2007 5
2008 12
2009 2
2010 5
2011 7
2012 7
2013 11
2014 12
2015 6
2016 2
2017 4
2018 1
2019 8
2020 3
2021 7
2022 9
2023 6
2024 6
2025 9
Total 220
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R.P. Kwakkel 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 R.P. Kwakkel 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, 174–178 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: 174 publications — 66th percentile

66% 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 63 174
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
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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R.P. Kwakkel 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 R.P. Kwakkel 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, 34 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: 34 D-Index — 43rd percentile

43% 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 34
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
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
Download as CSV

Best Publications

  • Effects of mushroom and herb polysaccharides, as alternatives for an antibiotic, on the cecal microbial ecosystem in broiler chickens

    F.C Guo;B. A. Williams;R. P. Kwakkel;H. S. Li

  • Development and evaluation of a dynamic model of calcium and phosphorus flows in layers

    E. Kebreab;E. Kebreab;R.P. Kwakkel;S. Leeson

  • Effects of Mushroom and Herb Polysaccharides on Cellular and Humoral Immune Responses of Eimeria tenella-Infected Chickens

    F.C. Guo;R.P. Kwakkel;B.A. Williams;H.K. Parmentier

  • Impact of feeding management on feather pecking in laying hens

    M.M. Van Krimpen;R.P. Kwakkel;B.F.J. Reuvekamp;C.M.C. Van Der Peet-Schwering

  • Heat stress and feeding strategies in meat- type chickens

    S. Syafwan;R.P. Kwakkel;M.W.A. Verstegen

  • Protein source and dietary structure influence growth performance, gut morphology, and hindgut fermentation characteristics in broilers

    S. N. Qaisrani;P. C. A. Moquet;M. M. van Krimpen;R. P. Kwakkel

  • Effects of mushroom and herb polysaccharides, as alternatives for an antibiotic, on growth performance of broilers

    F.C. Guo;R.P. Kwakkel;B.A. Williams;W.K. Li

  • Effect of a Chinese herb medicine formulation, as an alternative for antibiotics, on performance of broilers.

    F.C. Guo;R.P. Kwakkel;J. Soede;B.A. Williams

  • Immunoactive, medicinal properties of mushroom and herb polysaccharides and their potential use in chicken diets

    F.C. Guo;H.F.J. Savelkoul;R.P. Kwakkel;B.A. Williams

  • Effects of nutrient dilution and nonstarch polysaccharide concentration in rearing and laying diets on eating behavior and feather damage of rearing and laying hens

    M. M. van Krimpen;R. P. Kwakkel;C. M. C. van der Peet-Schwering;L. A. den Hartog

  • Diet structure, butyric acid, and fermentable carbohydrates influence growth performance, gut morphology, and cecal fermentation characteristics in broilers

    S. N. Qaisrani;S. N. Qaisrani;M. M. van Krimpen;R. P. Kwakkel;M. W. A. Verstegen

  • Dietary factors affecting hindgut protein fermentation in broilers: a review

    S.N. Qaisrani;M.M. van Krimpen;R.P. Kwakkel;M.W.A. Verstegen

  • Responses of broiler chickens to dietary protein: effects of early life protein nutrition on later responses.

    R.M. Eits;R.P. Kwakkel;M.W.A. Verstegen;G.C. Emmans

  • Multiphasic Analysis of Growth of the Body and its Chemical Components in White Leghorn Pullets

    Unknown

  • Effects of growth patterns and dietary protein levels during rearing of broiler breeders on fertility, hatchability, embryonic mortality, and offspring performance

    R.A. van Emous;R.P. Kwakkel;M.M. van Krimpen;H. van den Brand

  • Low dietary energy concentration, high nonstarch polysaccharide concentration, and coarse particle sizes of nonstarch polysaccharides affect the behavior of feather-pecking-prone laying hens.

    M.M. van Krimpen;R.P. Kwakkel;C.M.C. van der Peet-Schwering;L.A. den Hartog

  • Growth responses to dietary energy and lysine at high and low ambient temperature in male turkeys

    T. Veldkamp;R.P. Kwakkel;P.R. Ferket;M.W.A. Verstegen

  • Growth of broiler chicks fed diets containing tannin-free and tannin-containing near-isogenic lines of Faba bean (Vicia Faba L.).

    J.P.F.G. Helsper;Y.P.J. van Loon;R.P. Kwakkel;A. van Norel

  • Effects of phytase supplementation on phosphorus retention in broilers and layers: a meta-analysis.

    A. Bougouin;A. Bougouin;J. A D R N Appuhamy;Ermias Kebreab;J. Dijkstra

  • Effects of dietary protein levels during rearing and dietary energy levels during lay on body composition and reproduction in broiler breeder females

    R. A. van Emous;R. P. Kwakkel;M. M. van Krimpen;W. H. Hendriks

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Related Online Degrees & Career Pathways

Pursuing a degree in Animal Science or Veterinary studies in the USA opens up various interdisciplinary career opportunities. Many students complement their education by exploring related fields that enhance their understanding of biology, behavior, and healthcare. For instance, an online degree in exercise science can deepen knowledge about animal physiology and physical conditioning, which is valuable in veterinary rehabilitation and animal athletics.

Behavior analysis is another promising pathway. Certification through bcba online programs equips professionals with tools to understand and modify animal behaviors, which is critical for training and therapy.

Additionally, some students with an interest in animal psychology or welfare may consider programs related to human psychology. Accredited online school psychology programs nasp approved provide a foundation in psychological assessments and interventions that can translate well into animal behavioral studies.

For those interested in clinical practice management or counseling within veterinary settings, pursuing online psyd programs accredited by apa offer advanced skills in psychological services and administration, broadening one’s career potential beyond traditional veterinary roles.

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