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 600W: Field Experience
  • ANSC 650: Dairy Industry Travel Course
  • ANSC 710/810: Dairy Nutrition
  • ANSC 715/815: Physiology of Lactation
  • ANSC 727/827: Advanced Dairy Management I
  • ANSC 728: Advanced Dairy Management II
  • ANSC 795W: Inv/Dairy Management
  • ANSC 828: Advanced Dairy Management II
  • ANSC 999: Doctoral Research
  • BMS 799H: Senior Honors Thesis

Selected Publications

Stahl, T. C., Hatungimana, E., Klanderman, K. D., Moreland, S. C., & Erickson, P. S. (2020). Sodium butyrate and monensin supplementation to postweaning heifer diets: Effects on growth performance, nutrient digestibility, and health. Journal of Dairy Science. doi:10.3168/jds.2020-18584

Erickson, P. S., Anderson, J. L., Kalscheur, K. F., Lascano, G. J., Akins, M. S., & Heinrichs, A. J. (2020). Symposium review: Strategies to improve the efficiency and profitability of heifer raising. Journal of Dairy Science, 103(6), 5700-5708. doi:10.3168/jds.2019-17419

Heinrichs, A. J., Jones, C. M., Erickson, P. S., Chester-Jones, H., & Anderson, J. L. (2020). Symposium review: Colostrum management and calf nutrition for profitable and sustainable dairy farms. Journal of Dairy Science, 103(6), 5694-5699. doi:10.3168/jds.2019-17408

Aragona, K. M., Rice, E. M., Engstrom, M., & Erickson, P. S. (2020). Supplementation of nicotinic acid to prepartum Holstein cows increases colostral immunoglobulin G, excretion of urinary purine derivatives, and feed efficiency in calves. Journal of Dairy Science, 103(3), 2287-2302. doi:10.3168/jds.2019-17058

Conroy, A., Overson, C. E., & Erickson, P. S. (2019). University of New Hampshire Alumni Perspectives in C.R.E.A.M. a Flipped Classroom with Experiential Learning on a Dairy Farm. NACTA Journal, 63, 299-306. Retrieved from

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