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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 36 1643 1512 135 121 124 4352

Niamh O'Connell publications per year

The chart shows the history of publications by Niamh O'Connell between 1999 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Niamh O'Connell published across 27 years, from 1999 to 2025, averaging 5.5 papers a year. Output peaked at 15 publications in 2010. 15 of the 149 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1999 to 2025. Vertical axis: number of publications, 0 to 15. Peak 15 publications in 2010. 1999: 1 publication 2000: 2 publications 2001: 0 publications 2002: 2 publications 2003: 1 publication 2004: 6 publications 2005: 5 publications 2006: 0 publications 2007: 1 publication 2008: 6 publications 2009: 5 publications 2010: 15 publications 2011: 2 publications 2012: 8 publications 2013: 7 publications 2014: 3 publications 2015: 8 publications 2016: 13 publications 2017: 14 publications 2018: 6 publications 2019: 10 publications 2020: 6 publications 2021: 4 publications 2022: 3 publications 2023: 6 publications 2024: 6 publications 2025: 9 publications
1999 2025

149 publications in total across all disciplines

View publications per year as a table
Niamh O'Connell: publications per year, 1999 to 2025
Year Publications
1999 1
2000 2
2001 0
2002 2
2003 1
2004 6
2005 5
2006 0
2007 1
2008 6
2009 5
2010 15
2011 2
2012 8
2013 7
2014 3
2015 8
2016 13
2017 14
2018 6
2019 10
2020 6
2021 4
2022 3
2023 6
2024 6
2025 9
Total 149
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Niamh O'Connell 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 Niamh O'Connell 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, 124–128 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: 124 publications — 42nd percentile

42% 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 93 124
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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Niamh O'Connell 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 Niamh O'Connell 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, 36 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: 36 D-Index — 50th percentile

50% 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 36
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

Niamh O'Connell is affiliated with Queen's University Belfast in the United Kingdom. Their research focuses primarily on Agricultural and Biological Sciences and Veterinary fields, with substantial work in related subfields such as Animal Science and Zoology, Small Animals, Agronomy and Crop Science, Public Health, Environmental and Occupational Health, and General Health Professions.

The main topics covered in their work include Animal Behavior and Welfare Studies, Animal Nutrition and Physiology, Obesity, Physical Activity, and Diet, School Health and Nursing Education, Livestock and Poultry Management, Meat and Animal Product Quality, and Effects of Environmental Stressors on Livestock.

Frequent publication venues for O'Connell's research include Proceedings of The Nutrition Society, Applied Animal Behaviour Science, Animals, PLoS ONE, and the Irish Journal of Agricultural and Food Research.

Notable recent papers authored by O'Connell or in collaboration include:

  • Food environment intervention improves food knowledge, wellbeing and dietary habits in primary school children: Project Daire, a randomised-controlled, factorial design cluster trial (2021), International Journal of Behavioral Nutrition and Physical Activity
  • A comparison of fast growing broiler chickens with a slower-growing breed type reared on Higher Welfare commercial farms (2021), PLoS ONE
  • Automated detection and quantification of contact behaviour in pigs using deep learning (2022), Biosystems Engineering
  • A computer vision approach to monitor activity in commercial broiler chickens using trajectory-based clustering analysis (2024), Computers and Electronics in Agriculture
  • Investigating optimal levels of platform perch provision for windowed broiler housing (2020), Applied Animal Behaviour Science

O'Connell frequently collaborates with researchers including Sarah Brennan, Fiona Lavelle, Sarah E. Moore, Michelle C. McKinley, and Patrick McCole.

Best Publications

  • Influence of environmental enrichment on the behaviour, performance and meat quality of domestic pigs

    V.E. Beattie;Niamh O'Connell;Bruce Moss

  • Review: welfare of dairy cows in continuously housed and pasture-based production systems

    Ga. Arnott;C. P. Ferris;N. E. O'Connell

  • Responses of calves to acute stress: individual consistency and relations between behavioral and physiological measures.

    Cornelis G. Van Reenen;Niamh E. O'Connell;Jozef T.N. Van der Werf;S. Mechiel Korte

  • Influence of environmental enrichment on welfare-related behavioural and physiological parameters in growing pigs

    V.E. Beattie;Niamh O'Connell;D.J. Kilpatrick;B.W. Moss

  • Heritability of clinical tail-biting and its relation to performance traits.

    K. Breuer;K. Breuer;M.E.M. Sutcliffe;J.T. Mercer;K.A. Rance;K.A. Rance

  • Intestinal microbiota profiles associated with low and high residual feed intake in chickens across two geographical locations.

    Sina-Catherine Siegerstetter;Stephan Schmitz-Esser;Elizabeth Magowan;Stefanie Urimare Wetzels

  • Does housing nulliparous dairy cows with multiparous animals prior to calving influence welfare- and production-related parameters after calving?

    Alastair R. Boyle;Conrad P. Ferris;Niamh E. O’Connell

  • Influence of the provision of natural light and straw bales on activity levels and leg health in commercial broiler chickens.

    C. L. Bailie;M. E. E. Ball;N. E. O'Connell

  • Evaluating the prevalence of tail biting and carcase condemnations in slaughter pigs in the Republic and Northern Ireland, and the potential of abattoir meat inspection as a welfare surveillance tool

    Sarah Harley;Simon More;Niamh O'Connell;Alison Hanlon

  • Factors identifying pigs predisposed to tail biting

    V. E. Beattie;K. Breuer;N. E. O'Connell;I. A. Sneddon

  • Docking the value of pigmeat? Prevalence and financial implications of welfare lesions in Irish slaughter pigs.

    S. Harley;L.A. Boyle;N. E. O'Connell;S. J. More

  • Influence of environmental enrichment on aggressive behaviour and dominance relationships in growing pigs

    Niamh O'Connell

  • Do pigs form preferential associations

    J.L. Durrell;I.A. Sneddon;N.E. O’Connell;H. Whitehead

  • Influence of social status on the welfare of sows in static and dynamic groups

    Niamh O'Connell;V.E. Beattie;B.W. Moss

  • Fecal Microbiota Transplant From Highly Feed Efficient Donors Affects Cecal Physiology and Microbiota in Low- and High-Feed Efficient Chickens.

    Barbara U. Metzler-Zebeli;Sina-Catherine Siegerstetter;Elizabeth Magowan;Peadar G. Lawlor

  • Effectiveness of different footbath solutions in the treatment of digital dermatitis in dairy cows

    M.H.M. Speijers;L.G. Baird;G.A. Finney;J. McBride

  • Relationship between rooting behaviour and foraging in growing pigs

    V.E. Beattie;Niamh O'Connell

  • Play behaviour, fear responses and activity levels in commercial broiler chickens provided with preferred environmental enrichments

    Mary Baxter;Carley L. Bailie;Niamh O'Connell

  • Digital Dermatitis in Dairy Cows: A Review of Risk Factors and Potential Sources of Between-Animal Variation in Susceptibility

    Maeve A. Palmer;Niamh E. O'Connell

  • Fecal Microbiota Transplant from Highly Feed-Efficient Donors Shows Little Effect on Age-Related Changes in Feed-Efficiency-Associated Fecal Microbiota from Chickens.

    Sina-Catherine Siegerstetter;Renée M. Petri;Elizabeth Magowan;Peadar G. Lawlor

  • Study on the Association between Tail Lesion Score, Cold Carcass Weight, and Viscera Condemnations in Slaughter Pigs

    Dayane Lemos Teixeira;Dayane Lemos Teixeira;Sarah Harley;Alison Hanlon;Niamh Elizabeth O’Connell

  • Evaluation of a dustbathing substrate and straw bales as environmental enrichments in commercial broiler housing

    Mary Baxter;Carley L. Bailie;Niamh E. O’Connell

  • A comparison of fast growing broiler chickens with a slower-growing breed type reared on Higher Welfare commercial farms.

    Mary Baxter;Anne Richmond;Ursula Lavery;Niamh E. O’Connell

  • Aerial perches and free-range laying hens: The effect of access to aerial perches and of individual bird parameters on keel bone injuries in commercial free-range laying hens

    C.J. Donaldson;M.E.E. Ball;Niamh O'Connell

  • Influence of access to straw provided in racks on the welfare of sows in large dynamic groups

    Charlotte Lauren Stewart;Niamh Elizabeth O’Connell;Laura Boyle

  • Influence of regrouping strategy on performance, behaviour and carcass parameters in pigs

    N.E. O'Connell;V.E. Beattie;D. Watt

Frequent Co-Authors

Alison Hanlon
Alison Hanlon University College Dublin
Peadar G. Lawlor
Peadar G. Lawlor Teagasc - The Irish Agriculture and Food Development Authority
Barbara U. Metzler-Zebeli
Barbara U. Metzler-Zebeli University of Veterinary Medicine Vienna
Qendrim Zebeli
Qendrim Zebeli University of Veterinary Medicine Vienna
Christopher T. Elliott
Christopher T. Elliott Queen's University Belfast
Moira Dean
Moira Dean Queen's University Belfast
Lisa M. Collins
Lisa M. Collins University of Surrey
Gareth Arnott
Gareth Arnott Queen's University Belfast
Simon J. More
Simon J. More University College Dublin
Sandra A. Edwards
Sandra A. Edwards Newcastle University

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Related Online Degrees & Career Pathways

Exploring careers connected to Animal Science and Veterinary studies often leads students toward diverse fields requiring specialized knowledge. For those interested in physical health and rehabilitation, pursuing an online sports science degree can provide valuable skills in anatomy, physiology, and biomechanics, all essential for working with animals and humans alike.

Behavioral analysis is another growing area, especially for professionals working with animal training or therapeutic services. Programs like the bcba programs offer focused training in applied behavior analysis, which can be beneficial for careers enhancing animal welfare and managing behavioral issues.

For those interested in psychological support roles connected to educational or developmental contexts, pursuing school psychology programs online accredited by nasp equips candidates with essential skills to support mental health and learning behaviors, a foundation that parallels some aspects of veterinary behavioral science.

Additionally, advanced degrees such as psyd online programs apa accredited open pathways for those seeking a clinical psychology focus with flexible online access, complementing animal science fields that intersect with psychological research and therapy.

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