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Bowdridge, Scott

Professor of Food Animal Production

Dr. Bowdridge’s research interests are centered around improving small ruminant production.  His basic research program is focused on identifying immune mechanisms necessary to clear helminth parasite infection using parasite-resistant St. Croix sheep as a model. To better translate this basic research in an applied setting his lab has recently acquired a flock of Texel sheep to determine differential immune response to Haemonchus contortus, demonstrate how these sheep may be used in crossbreeding systems interested in maintaining parasite resistance and the establishment of a fecal egg count EBV for the Texel breed in the US. Additionally, Dr. Bowdridge works with a team of faculty across the School of Food and Agriculture to evaluate grazing practices that will reduce the impact of gastrointestinal parasitism of grazing livestock.


  1. Shepherd, E.A., J.J. Garza, S.P Greiner, S.A. Bowdridge. 2017. Effects of ovine peripheral blood mononuclear cells on Haemonchus contortus larval death in vitro. Parasit. Immunol. 39:e12424
  2. Garza, J.J., S.P. Greiner , S.A. Bowdridge . 2017. Serum-mediated H. contortus larval aggregation differs by larval stage and is enhanced by complement. Parasit. Immunol. 39:e12409.
  3. Jacobs, J.R., K.N. Sommers, A.M. Zajac, D.R. Notter, S.A. Bowdridge. 2016. Early IL-4 gene expression in abomasum is a critical difference in resistance to H. contortus. Parasit. Immunol. 38:333-339.
  4. Holt, R.M., E.A. Shepherd, A.G. Ammer, S.A. Bowdridge. 2015. Effects of peripheral blood mononuclear cells on Haemonchus concortus larval motility in vitro. Parasit. Immunol. 37:553-556.
  5. Jacobs, J.R., S.P. Greiner, S.A. Bowdridge . 2015. Serum interleukin-4 (IL-4) production is associated with lower fecal egg count in parasite-resistant sheep. Vet. Parasitol. 211:102-105
  6. Bowdridge, S.A., A.M. Zajac, D.R. Notter. 2015. St. Croix sheep produce a rapid and greater cellular immune response contributing to reduced establishment of Haemonchus contortus. Vet. Parasitol. 208:204-210.