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 James W. Oltjen sits on this spectrum.
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.
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 James W. Oltjen sits on this spectrum.
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.
James W. Oltjen is affiliated with the University of California, Davis, in the United States. Their research primarily falls within the domain of Agricultural and Biological Sciences, with a particular focus on Animal Science and Zoology, Agronomy and Crop Science, Genetics, Ecology, and Food Science.
Their work extensively covers topics related to ruminant nutrition and digestive physiology, genetic and phenotypic traits in livestock, agriculture sustainability and environmental impact, effects of environmental stressors on livestock, meat and animal product quality, animal nutrition and physiology, and animal behavior and welfare studies.
Frequent publication venues for this scientist include:
Recent papers authored or co-authored by James W. Oltjen include:
Frequent co-authors collaborating with Oltjen include:
James W. Oltjen has been recognized with awards such as the Extension Award from the American Society of Animal Science in 2003 and was named an ASAS Fellow in the Extension Category in 2014.
J. J. Wagner;K. S. Lusby;J. W. Oltjen;J. Rakestraw
R D Sainz;F De la Torre;J W Oltjen
G. E. Selk;R. P. Wettemann;K. S. Lusby;J. W. Oltjen
J W Oltjen;J L Beckett
J. W. Oltjen;A. C. Bywater;R. L. Baldwin;W. N. Garrett
K. R. Stackhouse-Lawson;C. A. Rotz;J. W. Oltjen;F. M. Mitloehner
Terry W. Lehenbauer;James W. Oltjen
G. D. Cruz;J. A. Rodríguez-Sánchez;J. W. Oltjen;R. D. Sainz
J. L. Beckett;J. W. Oltjen
M. T. Smith;J. W. Oltjen;H. G. Dolezal;D. R. Gill
R. B. Hicks;F. N. Owens;D. R. Gill;J. W. Oltjen
James W. Oltjen
B. J. Renquist;J. W. Oltjen;R. D. Sainz;C. C. Calvert
Calvin Ferrell;J. W. Oltjen
R. B. Hicks;F. N. Owens;D. R. Gill;J. W. Oltjen
James W. Oltjen;Ermias Kebreab;Hélène Lapierre
K. R. Stackhouse;C. A. Rotz;J. W. Oltjen;F. M. Mitloehner
Unknown
J. W. Oltjen;A. C. Bywater;R. L. Baldwin
J. L. Arrayet;A. M. Oberbauer;T. R. Famula;I. Garnett
M. J. McPhee;J. W. Oltjen;T. R. Famula;R. D. Sainz
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