The present study was undertaken to evaluate the seasonal
botanical composition of two grass pastures, tall fescue (Festuca
arundinacea Schreb.) and perennial ryegrass (Lolium perenne L.).
Botanical composition was determined by four methods: dry-weight-rank,
weight-estimate, hand separation, and the constituent differential,
with cattle and sheep grazing at two intensities.
The...
A study was conducted of the influence of various climatic and
soil factors on the development of onion pink root disease and of the
influences of temperature, light, pH, carbon and nitrogen sources,
and vitamins on the growth in vitro of an Oregon isolate of the pink
root fungus, Pyrenochaeta...
Sheep and cattle dietary preferences were determined on tall fescue-subclover ( Festuca arundinacea-Trifolium subterraneum) and
perennial ryegrass-subclover (Lolium perenne-Trifoliuni subterraneum)
pastures in western Oregon during the spring and summer periods
of 1964 and 1965. Esophageal-fistulated Willamette ewes and
Hereford and Hereford-Angus yearling cattle were grazed separately
on each pasture mixture...