Education Commons^™

Ec71-219 1971 Nebraska Swine Report, E.R. Peo Jr., R. D. Fritschen, N.R. Underdahl, Charles A. Mebus, Larry L. Bitney, E.A. Olson, P.J. Cunningham, William Ahlschwede, D.E. Stillwell, R. W. Mandigo, Murray Danielson, Phillip H. Grabouski, Harold H. Hodson Jr., O.D. Grace, James Drake Heldt

University of Nebraska-Lincoln Extension: Historical Materials

This 1971 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating departments for use in the Extension and Teaching programs at the University of Nebraska-Lincoln. Authors from the following areas contributed to this publication: Swine Nutrition, swine diseases, pathology, economics, swine nutrition, engineering, swine breeding, meats, agronomy, and diagnostic laboratory. It covers the following areas: breeding, disease control, feeding, nutrition, economics, housing and meats.

Rb246 Trees And Shrubs For Noise Abatement, David I. Cook, David F. Van Haverbeke

University of Nebraska-Lincoln Extension: Historical Materials

Excessive noise is a form of environmental pollution. The continual increase in the community noise level during the past two decades indicates a future noise problem comparable to the current air pollution problem of our large industrial centers.

Trees and other forms of vegetation are known to have some effect on the transmission of sound but precise information on their use as noise screens is rather meager. In this study, we attempted to derive accurate, useful information for the above purpose, and to add to knowledge about outdoor sound propagation. Actual plantings of trees and shrubs in the form of …