Peter Erickson

Extension Dairy Specialist
Phone: (603) 862-1909
Office: Agriculture, Nutrition, & Food Systems, Keener Dairy Research Building, Durham, NH 03824

My research interests encompass the area of calf and heifer nutrition. Specifically, our laboratory investigates in the area of calf health.


  • Ph.D., Dairy Science, University of Illinois
  • M.S., Animal Sciences, University of Maine
  • B.S., Animal Sciences, University of Massachusetts - Amherst

Courses Taught

  • ANFS 999: Doctoral Research
  • ANSC 543: Tech Writing Animal Sciences
  • ANSC 600: Field Experience
  • ANSC 650: Dairy Industry Travel Course
  • ANSC 710: Dairy Nutrition
  • ANSC 715: Physiology of Lactation
  • ANSC 727: Advanced Dairy Management I
  • ANSC 728: Advanced Dairy Management II
  • ANSC 828: Advanced Dairy Management II
  • ANSC 999: Doctoral Research

Selected Publications

Chapman, C. E., Ort, S. B., Aragona, K. M., Cabral, R. G., & Erickson, P. S. (2019). Effect of cinnamaldehyde on feed intake, rumen fermentation, and nutrient digestibility, in lactating dairy cows1. Journal of Animal Science, 97(4), 1819-1827. doi:10.1093/jas/skz050

Rice, E. M., Aragona, K. M., Moreland, S. C., & Erickson, P. S. (2019). Supplementation of sodium butyrate to postweaned heifer diets: Effects on growth performance, nutrient digestibility, and health. Journal of Dairy Science, 102(4), 3121-3130. doi:10.3168/jds.2018-15525

Ort, S. B., Aragona, K. M., Chapman, C. E., Shangraw, E., Brito, A. F., Schauff, D. J., & Erickson, P. S. (2018). The impact of direct-fed microbials and enzymes on the health and performance of dairy cows with emphasis on colostrum quality and serum immunoglobulin concentrations in calves. Journal of Animal Physiology and Animal Nutrition, 102(2), e641-e652. doi:10.1111/jpn.12806

Heinrichs, A. J., Heinrichs, B. S., Jones, C. M., Erickson, P. S., Kalscheur, K. F., Nennich, T. D., . . . Cardoso, F. C. (2017). Short communication: Verifying Holstein heifer heart girth to body weight prediction equations. Journal of Dairy Science, 100(10), 8451-8454. doi:10.3168/jds.2016-12496

Chapman, C. E., Wilkinson, P. S., Murphy, M. R., & Erickson, P. S. (2017). Technical note: Evaluating nuclear magnetic resonance spectroscopy for determining body composition in Holstein dairy calves using deuterium oxide dilution methods. Journal of Dairy Science, 100(4), 2807-2811. doi:10.3168/jds.2016-11888

Quigley, J. D., Lago, A., Chapman, C., Erickson, P., & Polo, J. (2013). Evaluation of the Brix refractometer to estimate immunoglobulin G concentration in bovine colostrum. Journal of Dairy Science, 96(2), 1148-1155. doi:10.3168/jds.2012-5823

Cowles, K. E., White, R. A., Whitehouse, N. L., & Erickson, P. S. (2006). Growth Characteristics of Calves Fed an Intensified Milk Replacer Regimen with Additional Lactoferrin. Journal of Dairy Science, 89(12), 4835-4845. doi:10.3168/jds.s0022-0302(06)72532-2

Knowlton, K. F., Allen, M. S., & Erickson, P. S. (1996). Lasalocid and Particle Size of Corn Grain for Dairy Cows in Early Lactation. 1. Effect on Performance, Serum Metabolites, and Nutrient Digestibility. Journal of Dairy Science, 79(4), 557-564. doi:10.3168/jds.s0022-0302(96)76400-7

Lucy, M. C., Staples, C. R., Thatcher, W. W., Erickson, P. S., Cleale, R. M., Firkins, J. L., . . . Brodie, B. O. (1992). Influence of diet composition, dry-matter intake, milk production and energy balance on time of post-partum ovulation and fertility in dairy cows. Animal Science, 54(3), 323-331. doi:10.1017/s0003356100020778

Erickson, P. S., Murphy, M. R., & Clark, J. H. (1992). Supplementation of Dairy Cow Diets with Calcium Salts of Long-Chain Fatty Acids and Nicotinic Acid in Early Lactation. Journal of Dairy Science, 75(4), 1078-1089. doi:10.3168/jds.s0022-0302(92)77852-7

Most Cited Publications