McNay Research and Demonstration Farm
Grazing management practices that allow cattle to congregate near pasture streams may result in soil compaction and accumulation of manure near the streams and the loss of vegetative cover. These conditions may cause sediment, phosphorus, and pathogen loading of streams by direct deposition of feces or in precipitation runoff.
Iowa State University
Bear, Douglas A.; Cho, Yong-Il; Russell, James R.; Ensley, Steven M.; and Yoon, Kyoung-Jin, "Incidence of Bovine Enterovirus, Coronavirus, and Group A Rotavirus, and Concentration of Fecal Coliforms in Midwestern Pasture Streams" (2009). Iowa State Research Farm Progress Reports. 530.