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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 26 2933 2657 11 11 50 1723

R. Jahanian publications per year

The chart shows the history of publications by R. Jahanian between 2008 and 2023, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R. Jahanian published across 16 years, from 2008 to 2023, averaging 3.1 papers a year. Output peaked at 12 publications in 2015. 1 of the 50 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 2008 to 2023. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2015. 2008: 4 publications 2009: 2 publications 2010: 4 publications 2011: 1 publication 2012: 0 publications 2013: 0 publications 2014: 7 publications 2015: 12 publications 2016: 9 publications 2017: 6 publications 2018: 1 publication 2019: 2 publications 2020: 0 publications 2021: 1 publication 2022: 0 publications 2023: 1 publication
2008 2023

50 publications in total across all disciplines

View publications per year as a table
R. Jahanian: publications per year, 2008 to 2023
Year Publications
2008 4
2009 2
2010 4
2011 1
2012 0
2013 0
2014 7
2015 12
2016 9
2017 6
2018 1
2019 2
2020 0
2021 1
2022 0
2023 1
Total 50
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R. Jahanian 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. Jahanian 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, 49–53 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: 50 publications — 2nd percentile

2% 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 50
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
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. Jahanian 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. Jahanian 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, 26 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: 26 D-Index — 10th percentile

10% 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 26
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
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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Overview

R. Jahanian is affiliated with the Isfahan University of Technology in Iran and has contributed to research primarily within the Agricultural and Biological Sciences. Their work spans several subfields including Animal Science and Zoology, Insect Science, Nutrition and Dietetics, and Plant Science.

The scientist's research topics cover a range of specific areas related to animal nutrition and physiology, insect and pesticide research, coccidia and coccidiosis, trace elements in health, and applications of Moringa oleifera. These themes reflect a focus on both fundamental and applied biological studies in agricultural contexts.

Notable recent papers authored or co-authored by R. Jahanian include:

  • Silymarin improved the growth performance via modulating the microbiota and mucosal immunity in Escherichia coli-challenged broiler chicks (2021, Livestock Science)
  • Oral copper-methionine decreases matrix metalloproteinase-2 activity in the liver and brain of broiler chickens subjected to cold stress for ascites incidence (2023, bioRxiv - Cold Spring Harbor Laboratory)

These works reflect a focus on poultry health and nutrition, particularly examining biochemical and immunological responses to dietary supplements and environmental stressors.

Frequent co-authors collaborating with R. Jahanian include:

  • Amir Hossein Mahdavi
  • E. Jahanian
  • Mina Bagheri Varzaneh
  • Hamidreza Rahmani
  • Corinne Perreau

Publication venues where the scientist has contributed include Livestock Science and bioRxiv hosted by Cold Spring Harbor Laboratory. These venues align with the focus on biological and agricultural sciences research.

Best Publications

  • Immunological responses as affected by dietary protein and arginine concentrations in starting broiler chicks.

    R. Jahanian

  • Effects of different levels of dietary crude protein and threonine on performance, humoral immune responses and intestinal morphology of broiler chicks

    MA Abbasi;AH Mahdavi;AH Samie;R Jahanian

  • Dietary chromium methionine supplementation could alleviate immunosuppressive effects of heat stress in broiler chicks.

    R. Jahanian;E. Rasouli

  • Effects of dietary egg yolk antibody powder on growth performance, intestinal Escherichia coli colonization, and immunocompetence of challenged broiler chicks

    A. H. Mahdavi;H. R. Rahmani;N. Nili;A. H. Samie

  • Effect of different levels of black cumin (Nigella sativa L.) on performance, intestinal Escherichia coli colonization and jejunal morphology in laying hens.

    J. Boka;A. H. Mahdavi;A. H. Samie;R. Jahanian

  • Improved Broiler Chick Performance by Dietary Supplementation of Organic Zinc Sources

    Rahman Jahanian;Hasan Nassiri Moghaddam;Abbas Rezaei

  • Immunological Responses of Broiler Chicks Can Be Modulated by Dietary Supplementation of Zinc-methionine in Place of Inorganic Zinc Sources

    Hasan Nassiri Moghaddam;Rahman Jahanian

  • Effects of dietary organic chromium and vitamin C supplementation on performance, immune responses, blood metabolites, and stress status of laying hens subjected to high stocking density

    E. Mirfendereski;R. Jahanian

  • Dietary mannan-oligosaccharides supplementation could affect performance, immunocompetence, serum lipid metabolites, intestinal bacterial populations, and ileal nutrient digestibility in aged laying hens

    M. Ghasemian;R. Jahanian

  • Effects of dietary fat source and supplemental lysophosphatidylcholine on performance, immune responses, and ileal nutrient digestibility in broilers fed corn/soybean meal- or corn/wheat/soybean meal-based diets

    Unknown

  • Effect of dietary supplementation of mannan-oligosaccharides on performance, blood metabolites, ileal nutrient digestibility, and gut microflora in Escherichia coli-challenged laying hens

    R. Jahanian;M. Ashnagar

  • Effects of dietary substitution of zinc-methionine for inorganic zinc sources on growth performance, tissue zinc accumulation and some blood parameters in broiler chicks.

    R Jahanian;E Rasouli

  • Effect of supplemental organic acids on performance, carcass characteristics, and serum biochemical metabolites in broilers fed diets containing different crude protein levels

    N. Dehghani-Tafti;R. Jahanian

  • Effects of dietary inclusion of silymarin on performance, intestinal morphology and ileal bacterial count in aflatoxin-challenged broiler chicks.

    E. Jahanian;A. H. Mahdavi;S. Asgary;R. Jahanian

  • Effect of extrusion processing of soybean meal on ileal amino acid digestibility and growth performance of broiler chicks

    Unknown

  • Increase in dietary arginine level could ameliorate detrimental impacts of coccidial infection in broiler chickens

    Unknown

  • Effect of dietary supplementation of mannanoligosaccharides on growth performance, ileal microbial counts, and jejunal morphology in broiler chicks exposed to aflatoxins.

    E. Jahanian;A.H. Mahdavi;S. Asgary;R. Jahanian

  • Effects of dietary supplementation of choline and carnitine on growth performance, meat oxidative stability and carcass composition of broiler chickens fed diets with different metabolisable energy levels

    Unknown

  • Effects of decreasing metabolizable protein and rumen-undegradable protein on milk production and composition and blood metabolites of Holstein dairy cows in early lactation

    H. Bahrami-Yekdangi;M. Khorvash;G.R. Ghorbani;M. Alikhani

  • EFFECT OF DIETARY BETAINE ON PERFORMANCE, IMMUNOCOMPETENCE AND GUT CONTENTS OSMOLARITY OF BROILERS CHALLENGED WITH A MIXED COCCIDIAL INFECTION

    H Hamidi;R Jahanian;J Pourrezaei

  • Improved performance and immunological responses as the result of dietary genistein supplementation of broiler chicks.

    E. Rasouli;R. Jahanian

  • Effect of early feed restriction on physiological responses, performance and ascites incidence in broiler chickens raised in normal or cold environment

    R. Mohammadalipour;H.R. Rahmani;R. Jahanian;A. Riasi

  • The Effect of Dietary Fat Level on the Response of Broiler Chicks to Betaine and Choline Supplements

    R. Jahanian .;H.R. Rahmani .

  • Dietary supplementation of Echinacea purpurea powder improved performance, serum lipid profile, and yolk oxidative stability in laying hens

    Elaheh Jahanian;Rahman Jahanian;Hamid-Reza Rahmani;Masoud Alikhani

Frequent Co-Authors

G.R. Ghorbani
G.R. Ghorbani Isfahan University of Technology

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Related Online Degrees & Career Pathways

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Finally, addressing addiction and related behavioral challenges is an emerging field connected to animal-assisted therapy. Online pathways like addiction counseling online degree programs prepare students for careers in this vital area, bridging human and animal care disciplines effectively.

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