World's Best Scientists 2026 revealed!
VIEW LIST
R. K. Christenson

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 39 1344 1242 398 341 139 4629

R. K. Christenson publications per year

The chart shows the history of publications by R. K. Christenson between 1965 and 2020, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R. K. Christenson published across 56 years, from 1965 to 2020, averaging 3.1 papers a year. Output peaked at 12 publications in 2003. 3 of the 174 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1965 to 2020. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2003. 1965: 1 publication 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 2 publications 1972: 3 publications 1973: 2 publications 1974: 0 publications 1975: 2 publications 1976: 4 publications 1977: 1 publication 1978: 3 publications 1979: 4 publications 1980: 3 publications 1981: 6 publications 1982: 4 publications 1983: 5 publications 1984: 7 publications 1985: 8 publications 1986: 5 publications 1987: 2 publications 1988: 1 publication 1989: 1 publication 1990: 0 publications 1991: 1 publication 1992: 4 publications 1993: 9 publications 1994: 6 publications 1995: 2 publications 1996: 4 publications 1997: 5 publications 1998: 6 publications 1999: 8 publications 2000: 6 publications 2001: 9 publications 2002: 11 publications 2003: 12 publications 2004: 8 publications 2005: 7 publications 2006: 6 publications 2007: 1 publication 2008: 0 publications 2009: 0 publications 2010: 1 publication 2011: 0 publications 2012: 1 publication 2013: 0 publications 2014: 0 publications 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 3 publications
1965 2020

174 publications in total across all disciplines

View publications per year as a table
R. K. Christenson: publications per year, 1965 to 2020
Year Publications
1965 1
1966 0
1967 0
1968 0
1969 0
1970 0
1971 2
1972 3
1973 2
1974 0
1975 2
1976 4
1977 1
1978 3
1979 4
1980 3
1981 6
1982 4
1983 5
1984 7
1985 8
1986 5
1987 2
1988 1
1989 1
1990 0
1991 1
1992 4
1993 9
1994 6
1995 2
1996 4
1997 5
1998 6
1999 8
2000 6
2001 9
2002 11
2003 12
2004 8
2005 7
2006 6
2007 1
2008 0
2009 0
2010 1
2011 0
2012 1
2013 0
2014 0
2015 0
2016 0
2017 0
2018 0
2019 0
2020 3
Total 174
Download as CSV

R. K. Christenson publications per year - data summary

  • R. K. Christenson, a Animal Science and Veterinary scholar from United States Department of Agriculture, has 174 publications recorded across 56 years, from 1965 to 2020.
  • The oldest publication on record dates to 1965 and the most recent to 2020.
  • The most productive year is 2003, with 12 publications.
  • The least productive years with any output are 1965, 1977, 1988, 1989 and others, with 1 publication each.
  • 17 of the 56 years in the span carry no publications at all (1966, 1967, 1968, 1969 and others).
  • The rate of publication averages 3.1 papers per year over the whole span, or 4.5 per year counting only the 39 years with at least one publication.
  • The last 5 years on the chart (2016-2020) hold 3 publications, 2% of the career total.
  • Split into equal eras - 1965-1983: 40 publications (2.1 per year); 1984-2002: 95 publications (5.0 per year); 2003-2020: 39 publications (2.2 per year).
  • Comparing the opening and closing eras, the overall trend of publication is broadly steady.

R. K. Christenson 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. K. Christenson 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, 139–143 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: 139 publications — 50th percentile

50% 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 92 139
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
Download as CSV

R. K. Christenson publication distribution in Animal Science and Veterinary in 2026 - data summary

  • The chart plots the publication count of all 3,155 Animal Science and Veterinary scientists ranked by Research.com in 2026, grouped into 84 ranges running from 29–33 to 442+ publications.
  • R. K. Christenson, a Animal Science and Veterinary scholar from United States Department of Agriculture, records 139 publications - the 50th percentile of the discipline.
  • 50% of ranked Animal Science and Veterinary scientists score the same or lower than R. K. Christenson, and about 50% score higher.
  • The median of the discipline falls in the 139–143 publications range, and R. K. Christenson falls inside that same range.
  • The most crowded range is 119–123 publications, holding 109 scientists (3% of the field).
  • 47% of the field sits in the lowest quarter of the value range (up to 129–133 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 442 publications or more, 99 scientists in all (3% of the field).

R. K. Christenson 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. K. Christenson 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, 39 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: 39 D-Index — 61st percentile

61% 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 39
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

R. K. Christenson D-index placement in Animal Science and Veterinary in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,155 Animal Science and Veterinary scientists ranked by Research.com in 2026, grouped into 58 ranges running from 20 to 77+ D-Index.
  • R. K. Christenson, a Animal Science and Veterinary scholar from United States Department of Agriculture, records 39 D-Index - the 61st percentile of the discipline.
  • 61% of ranked Animal Science and Veterinary scientists score the same or lower than R. K. Christenson, and about 39% score higher.
  • The median of the discipline falls in the 36 D-Index range, and R. K. Christenson ranks above the median.
  • The most crowded range is 31 D-Index, holding 158 scientists (5% of the field).
  • 43% of the field sits in the lowest quarter of the value range (up to 34 D-Index), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 77 D-Index or more, 100 scientists in all (3% of the field).

Research.com Recognitions

  • 2003 - Animal Physiology and Endocrinology Award, American Society of Animal Science

Best Publications

  • Identification of quantitative trait loci affecting female reproductive traits in a multigeneration Meishan-White composite swine population.

    G A Rohrer;J J Ford;T H Wise;J L Vallet

  • Justification of unilateral hysterectomy-ovariectomy as a model to evaluate uterine capacity in swine.

    R. K. Christenson;K. A. Leymaster;L. D. Young

  • Blood Flow to Uteri of Sows during the Estrous Cycle and Early Pregnancy: Local Effect of the Conceptus on the Uterine Blood Supply

    Unknown

  • Early uterine development in pigs.

    F F Bartol;A A Wiley;T E Spencer;J L Vallet

  • A novel role for GM-CSF: enhancement of pregnancy specific interferon production, ovine trophoblast protein-1

    Unknown

  • Semen characteristics, testicular size, and reproductive hormone concentrations in mature duroc, meishan, fengjing, and minzhu boars.

    Unknown

  • Number of fetuses and conceptus growth throughout gestation in lines of pigs selected for ovulation rate or uterine capacity.

    B. A. Freking;K. A. Leymaster;J. L. Vallet;R. K. Christenson

  • Uterine blood flow and uterine arterial, venous and luminal concentrations of oestrogens on Days 11, 13 and 15 after oestrus in pregnant and non-pregnant sows

    Unknown

  • Differential Expression of Distinct mRNAs for Ovine Trophoblast Protein-1 and Related Sheep Type I Interferons

    Unknown

  • Blood Flow, Steroid Secretion and Nutrient Uptake of the Gravid Bovine Uterus and Fetus

    C. L. Ferrell;C. L. Ferrell;S. P. Ford;S. P. Ford;R. L. Prior;R. L. Prior;R. K. Christenson;R. K. Christenson

  • Puberty and Estrus in Confinement-Reared Gilts

    Unknown

  • Investigations into the control of litter size in swine: II. Comparisons of morphological and functional embryonic diversity between Chinese and American breeds.

    Unknown

  • Ovulation rate and embryonic survival in Chinese Meishan and white crossbred pigs

    Unknown

  • Cortisol Response of Gilts in Tether Stalls

    Unknown

  • Conceptus, progesterone, and breed effects on uterine protein secretion in swine.

    Unknown

  • A Chemokine, Interferon (IFN)-γ-Inducible Protein 10 kDa, Is Stimulated by IFN-τ and Recruits Immune Cells in the Ovine Endometrium1

    Unknown

  • Pubertal Development of the Boar: Testosterone, Estradiol-17β, Cortisol and LH Concentrations before and after Castration at various Ages2

    Unknown

  • Uterine Blood Flow and Nutrient Uptake during Late Gestation in Ewes with Different Number of Fetuses

    Christenson Rk;Prior Rl

  • Insulin and glucose effects on glucose metabolism in pregnant and nonpregnant ewes.

    R. L. Prior;R. K. Christenson

  • Steroidogenic Enzyme Expression in Porcine Conceptuses during and after Elongation

    Alan J Conley;R. K. Christenson;S. P. Ford;R. D. Geisert

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Pursuing a degree in Animal Science or Veterinary fields opens doors to diverse career options, many of which can be enhanced by complementary online programs. For those interested in managing sports programs for animal-related activities or wellness centers, understanding the athletic director education requirements is a valuable step toward leadership roles.

Students looking to combine animal health knowledge with physical care may find accelerated options like the accelerated exercise science degree online appealing. These programs provide practical skills that support rehabilitation and physical therapy for animals and humans alike.

For individuals passionate about behavior analysis, exploring the best schools for BCBA can guide career advancement in applied behavior analysis, an area growing in demand within veterinary behavior and animal training.

Additionally, understanding psychological principles can enhance animal welfare practices. The nasp accredited school psychology programs highlight quality education pathways that emphasize behavioral health and development, providing insights that are transferable to veterinary and animal science roles.

Related Animal Science and Veterinary Rankings & Guides

2027 What Medical Degrees Can I Get Online?

2027 What Medical Degrees Can I Get Online?
2027 Most Affordable Online Nursing Programs: Tuition, Coursework & Credit Requirements

2027 Most Affordable Online Nursing Programs: Tuition, Coursework & Credit Requirements
2027 PharmD vs. PhD vs. Master of Science in Pharmaceutical Sciences: Which Degree Should You Pursue?

2027 PharmD vs. PhD vs. Master of Science in Pharmaceutical Sciences: Which Degree Should You Pursue?
2027 Best Veterinary Technician Programs

2027 Best Veterinary Technician Programs
2027 Most Affordable Online RN to FNP Degree Programs

2027 Most Affordable Online RN to FNP Degree Programs
2027 Shortest Online Direct Entry MSN Programs For Non-Nurses

2027 Shortest Online Direct Entry MSN Programs For Non-Nurses
2027 Most Affordable Online MSN Programs

2027 Most Affordable Online MSN Programs
2027 Most Affordable Online PMHNP Degree Programs

2027 Most Affordable Online PMHNP Degree Programs
2027 Shortest RN to MSN Online Nursing Programs

2027 Shortest RN to MSN Online Nursing Programs
2027 Different Types of Animal Science Degrees and Their Salaries

2027 Different Types of Animal Science Degrees and Their Salaries
2027 Nursing Program Math Requirements

2027 Nursing Program Math Requirements
2027 Most Affordable Online MSN in Patient Safety and Healthcare Quality

2027 Most Affordable Online MSN in Patient Safety and Healthcare Quality
2027 MSN Programs Transition to DNP: What Future Nurse Practitioners Need to Know

2027 MSN Programs Transition to DNP: What Future Nurse Practitioners Need to Know
2027 Most Affordable Online Respiratory Care Therapy Associate's Degree Programs

2027 Most Affordable Online Respiratory Care Therapy Associate's Degree Programs
2027 How to Become a Certified Medical Coder and Biller From Home: Salary & Career Paths

2027 How to Become a Certified Medical Coder and Biller From Home: Salary & Career Paths
2027 Online Animal Science Degree Programs Costs: Tuition & Fees

2027 Online Animal Science Degree Programs Costs: Tuition & Fees
2027 Quick Medical Certifications That Pay Well in Healthcare

2027 Quick Medical Certifications That Pay Well in Healthcare
2027 Most Affordable Online Psychiatric Mental Health Nurse Practitioner Graduate Certificate Programs

2027 Most Affordable Online Psychiatric Mental Health Nurse Practitioner Graduate Certificate Programs
2027 Cheapest RN to BSN Online Programs

2027 Cheapest RN to BSN Online Programs
2027 Cheapest and Shortest Online Animal Science Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2027 Cheapest and Shortest Online Animal Science Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2027 How To Become a Zoologist? Salary & Career Paths

2027 How To Become a Zoologist? Salary & Career Paths

Recently Published Articles

2027 Best LPN Programs in Pennsylvania – Accredited Online LPN Programs

2027 Best LPN Programs in Pennsylvania – Accredited Online LPN Programs
2027 Best AI Degrees for Students Interested in Marketing Analytics

2027 Best AI Degrees for Students Interested in Marketing Analytics
2027 Fastest Online Sociology Degree Programs You Can Finish in Under 2 Years

2027 Fastest Online Sociology Degree Programs You Can Finish in Under 2 Years
2027 What Careers Can You Pursue With a Biomedical Sciences Degree? Salary Potential, Job Outlook, and Next Steps

2027 What Careers Can You Pursue With a Biomedical Sciences Degree? Salary Potential, Job Outlook, and Next Steps
2027 Fastest Online Teaching Master's Degree Programs You Can Finish in Under 2 Years

2027 Fastest Online Teaching Master's Degree Programs You Can Finish in Under 2 Years
2027 How to Become a Forensic (Criminal Justice) Social Worker

2027 How to Become a Forensic (Criminal Justice) Social Worker
2027 Admission Requirements for Christian Ministry Master's Programs: GPA, Prerequisites & Eligibility Criteria

2027 Admission Requirements for Christian Ministry Master's Programs: GPA, Prerequisites & Eligibility Criteria
2027 State-Approved Online Higher Education & Adult Education Degree Master's Programs

2027 State-Approved Online Higher Education & Adult Education Degree Master's Programs
2027 Does an Architecture Degree Require Internships or Clinical Hours?

2027 Does an Architecture Degree Require Internships or Clinical Hours?
2027 Entry-Level Jobs With a Mathematics Degree

2027 Entry-Level Jobs With a Mathematics Degree
2027 Online Biology Degrees With Cell Biology Concentrations

2027 Online Biology Degrees With Cell Biology Concentrations
2027 Online Sports Analytics Degree Programs With Monthly Tuition Payment Plans

2027 Online Sports Analytics Degree Programs With Monthly Tuition Payment Plans
2027 Highest Paying Careers With an Addiction Psychology Bachelor's Degree

2027 Highest Paying Careers With an Addiction Psychology Bachelor's Degree
2027 MBA vs. Master's in Healthcare Administration: Which Drives Better Career Outcomes

2027 MBA vs. Master's in Healthcare Administration: Which Drives Better Career Outcomes
2027 How to Become a Business Continuity Manager: Education, Salary, and Job Outlook

2027 How to Become a Business Continuity Manager: Education, Salary, and Job Outlook
2027 How to Become a Social Worker in South Dakota

2027 How to Become a Social Worker in South Dakota
2027 Online Game Programming Degree Programs With University Scholarships: Awards, Eligibility, and Net Cost

2027 Online Game Programming Degree Programs With University Scholarships: Awards, Eligibility, and Net Cost
2027 Online Science Bachelor's Degree Programs That Accept Transfer Credits

2027 Online Science Bachelor's Degree Programs That Accept Transfer Credits
2027 Are There Any One-Year Online Supply Chain Management Degree Programs Worth Considering?

2027 Are There Any One-Year Online Supply Chain Management Degree Programs Worth Considering?
2027 Grand Canyon University Online MS in Business Analytics: Cost, Curriculum, Admissions, and Career Outcomes

2027 Grand Canyon University Online MS in Business Analytics: Cost, Curriculum, Admissions, and Career Outcomes
2027 Best Marriage and Family Therapy (MFT) Programs in Montana: Online & Campus

2027 Best Marriage and Family Therapy (MFT) Programs in Montana: Online & Campus