Data were presented on epididymal spermatozoa from 29 inbred
and linecross bulls raised at Oregon State University in connection
with the Western Regional Beef Cattle Breeding Project, W-1. The
inbred bulls came from four inbred lines. Three of these inbred
lines were Herfords and the other line was Angus. The...
The production records used were all converted to a comparable
based, 305 day lactation period, two times a day milking, and
mature equivalent (305 days-2-x-ME) of 71 cows from four Holstein
bulls and 59 cows from four Jersey bulls were used for the study.
The Equal Parent Index, Regression Index...
Six experiments were conducted to determine the effects of
DES implantation on preweaning performance and sexual maturation
of male calves when implanted at various stages of development and
different sites.
Calves receiving DES implants in Experiments I and II were
implanted at birth, at birth and at about three months...
Distribution and juvenile habitat use of bull trout (Salvelinus
confluentus) were surveyed in selected areas of the Upper Willamette,
Deschutes, upper Yakima, and upper Cedar River basins in Oregon and
Washington from 1989 to 1991, using day snorkeling, night snorkeling,
and electrofishing. These methods were selected after a preliminary
diel...
This research sought to explore the implications of different tenure regimes for both
landscape-level ecological processes and the overall resilience of a social-ecological
system in Central Oregon. The purchase by an investor of former industrial timberlands
known as the Bull Springs tract raised the specter of dispersed residential development on...