Nathan  Long

Assistant Professor

Office: (864)656-4023

Animal and Veterinary Sciences

137 P&AS

Ph.D. in Animal Breeding and Reproduction, Oklahoma State University 2008
M.S. in Animal Science, University of Georgia 2004
B.S. Animal and Veterinary Sciences, Clemson University 2002

Currently teach one undergraduate applied nutrition course in addition to helping out with other nutrition courses. In addition, will develop a graduate level course in area of expertise. Also responsible for conducting research on fetal programming in cows and also supplementation strategies for calves that can increase marbling in steers.

Research interest:
Area of expertise is in the field of fetal programming which is the study of the effects of maternal and environmental factors that cause alteration in fetal growth and development. I then investigate how the changes to the fetus persist into the postnatal animal and leads to physiological effects like diabetes, high blood pressure, and obesity. To accomplish my research I utilize sheep and cattle as my models. In addition to this research, I am interested in the effects of postnatal nutrition and specific nutrients on growth and marbling of calves.

Long, N. M., P. W. Nathanielsz, and S. P. Ford. Transgenerational effects of fetal dexamethasone exposure on the hypothalamic-pituitary-adrenal axis of first and second generation female offspring. Am. J. OB and Gyn. (Accepted)
Long, N. M., R. J. Collier, and J. F. Smith. Short communication: Comparison of 2 methods of assessing calf birth weights in dairy calves. J. Dairy Sci. In press PMID #23063164.
Long, N. M., D. R. Shasa, P. W. Nathanielsz, and S. P. Ford. Growth and insulin dynamics in two generations of female offspring of mothers receiving a single course of synthetic glucocorticoids. Am. J. OB and Gyn. 2012, 207:203.e1-8.
Long, N. M., D. C. Rule, M. J. Zhu, P.W. Nathanielsz, and S. P. Ford. Maternal obesity increases fetal adiposity and upregulated nutrient transporters in fetal fat depots and muscle in late gestation. J. Anim. Sci. 2012, 90:2201–2210.
Long, N. M., P.W. Nathanielsz, and S. P. Ford. The impact of maternal overnutrition and obesity on hypothalamic-pituitary-adrenal axis response of offspring to stress. Dom. Anim. Endocrin 2012, 42:195-202.
Long, N. M., C. B. Tousley, S. P. Ford, W. J. Means, B. W. Hess, and M. Du. Effects of early to mid gestational undernutrition on offspring growth, carcass characteristics and histology of adipose tissue in the bovine. J. Anim. Sci. 2012, 90:197-206.
Ford, S. P. and N. M. Long. Evidence of similar changes in offspring phenotype following either maternal undernutrition and overnutrition: potential impact on fetal epigenetic mechanism. Reproduction, Fertility, and Development 2012, 24:105-111.
N. M. Long, S. P. Ford, and P. W. Nathanielsz. Maternal obesity eliminates the neonatal lamb plasma leptin peak. . J.Physiol. 2011.589:1455-1462.
Zhang, L, N. M. Long, S. M. Hein, Y. Ma, P. W. Nathanielsz, S. P. Ford. Diet-Induced maternal obesity at conception and throughout gestation increases fetal pancreatic β-cell losses in late gestation, resulting in decreased circulating insulin concentration at term. 2011. Domestic Anim. Endocrinol. 40: 30-39.
Long, N. M., L. A. George, A. B. Uthlaut, D. T. Smith, M. J. Nijland , P. W. Nathanielsz, and S. P. Ford. Maternal obesity and high nutrient intake before and during gestation in the ewe results in altered growth, adiposity and glucose tolerance in adult offspring. 2010. J. Anim. Sci. 88: 3546-3553.
Long, N. M., M.J. Prado-Cooper, C.R. Krehbiel, and R.P. Wettemann. Effects of nutrient restriction of bovine dams during early gestation on postnatalgrowth and regulation of plasma glucose. 2010. J. Anim. Sci. 88: 3262-3268.
Long, N. M., M.J. Prado-Cooper, C.R. Krehbiel, U. DeSilva, and R.P. Wettemann. Effects of nutrient restriction of bovine dams during early gestation on postnatal growth, carcass and organ characteristics, and gene expression in adipose tissue and muscle. 2010. J. Anim. Sci. 88: 3251-3261.
Long, N. M., M. J. Nijland, P. W. Nathanielsz, and S. P. Ford. The impacts of early to mid-gestational nutrient restriction on female offspring fertility and hypothalamic-pituitary-adrenal axis response to stress. 2010. J. Anim. Sci. 88: 2029-2037.
Long, N. M., M. P. Davis, M. J. Prado-Cooper, I. Rubio, and R. P. Wettemann. Estrus and luteal activity of postpartum beef cows after treatment with estradiol. 2009 Professional Animal Scientist. 25:481-486
Long, N. M., K. A. Vonnahme, B. W. Hess, P. W. Nathanielsz, and S. P. Ford. Effects of early gestational undernutrition on fetal growth, organ development, and placentomal composition in the bovine. 2009 J. Anim Sci. 87: 1950-1959.

Professional society activity:
• American Society of Animal Science
• Society for the Study of Reproduction
• North American Colleges & Teachers of Agriculture

Honors and awards:
2011 Junior Faculty Travel Stipend 2011 DOHaD 7th World Congress on Developmental Origins of Health and Disease
2011 USDA NIFA NRI Merit Fellow to SSR 2011 National Meeting
2010 Travel Award Aspen Perinatal Biology Conference
2008 NACTA Graduate Student Teaching Award
2008 Gamma Sigma Delta Graduate Student Teaching Award

AVS 370 Principles of Animal Nutrition
AVS 375 Applied Animal Nutrition