Honey bees are important pollinators for many agricultural systems throughout the world. However, recent honey bee declines have caused great alarm, drawing attention to the vulnerability of worldwide agriculture to pollinator loss. These declines are often attributed to a combination of pests, pathogens, viruses, chemicals, and a lack of proper...
Grazing on the mountainous forested ranges of the Camp Creek
Unit, Malhuer National Forest, was typified by irregular distribution
of free-ranging cattle. A combination of management and physical,
topographic constraints caused cattle to concentrate on the riparian
zone early in the grazing season in 1977 and 1978. A large percentage...
Division of labor in household food preparation tasks is of
interest in dietary intervention projects. Randomly selected families
were recruited to participate in a 5-year family-based study. A small
group format that emphasized family involvement was used to promote
change from the American diet (40% fat, 500 mg cholesterol P/S...
Although there is abundant scientific information regarding vitamin E and
selenium deficiency disease in domestic poultry, there is only scant information on
exotic species, such as ratites. Several necropsy cases involving ostriches, emus and
rheas were presented to the Oregon State University Veterinary Diagnostic
Laboratory with gross and/or histologic lesions...
The statistical correlations between habitual diet and plasma
risk factors for coronary heart disease CHD were analyzed using
multiple regression. Thirty-one male subjects between 30-56 years
kept complete dietary records for 7 days. Daily means of nutrient
consumption were calculated using a computerized data base.
Fourteen independent variables (total kilocalories,...
An anemia of juvenile chinook salmon (Oncorhynchus tshawytscha) is described and stages of development separated by recognizable syndromes. A vitamin E-deficient diet of low rancidity produced a severe microcytic anemia with strong immature red cell response and granulocytosis occurring 2 to 4 weeks before a drop in hemoglobin and hematocrit...
We examined the nutrient intake of women with rheumatoid arthritis
(RA) before and after initiation of treatment with arthritis medication.
Results of past (before taking arthritis medication) and present diets of RA
subjects were compared to the past and present diets of the non-RA group.
Subjects with RA were 19...
Published November 1973. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This online module provides information on nutrient needs of grapevines, symptoms of deficiency and/or toxicity, and vineyard nutrient management. A section of this module explains how to diagnose non-nutrient problems such as damage from diseases, insects, drought, sunburn, and herbicides.