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.
Published January 1940. 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
Published January 1940. 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
Published January 1939. 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
Published January 1939. 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
Suspensory apparatus breakdown and hyperextension of the metacarpophalangeal and metatarsophalangeal (fetlock) joints is a common condition in the llama and has been observed in llamas of all ages. Llama breeders refer to the condition as "down in the pasterns" or "down in the fetlocks." The condition can result in debilitating...
Milk fever (MF), retained placenta (RP), and left displaced abomasum (LDA) are three common and costly metabolic diseases in cows during the first days of lactation. Some studies suggest that circulating concentrations of α-tocopherol (ATOC) are decreased by these three diseases. It is, however, unknown if and how long lower...
Epidemiological studies have suggested that the consumption
of fish may reduce the risk of cardiovascular disease.
Compared to the number of studies using fish oils, few
studies have used fish itself. Those which have used fish
have generally used fattier fish such as mackerel and salmon
as part of an...
Patients with end-stage renal disease undergoing hemodialysis have a high incidence of oxidative stress-related diseases. This study evaluated oxidative stress and inflammatory markers in patients undergoing hemodialysis before and during vitamin E supplementation. Blood samples were obtained before and after dialysis during two separate dialysis sessions to establish baseline measurements....
Current dietary recommendations have placed increasing emphasis on dietary fat
as an important element to decrease risk of cardiovascular disease (CVD). Although total
fat and the fatty acid composition of diets influence the risk of CVD, the optimal amounts
of different fatty acids are not well defined, especially if n-6...
Published January 2001. Reviewed March 2012. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published September 1942. 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
Published June 1941. 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
There is a strong evidence that human papillomavirus (HPV) is the key causative agent of cervical cancer. However, the majority of women who are exposed to the oncogenic HPV do not develop invasive cervical cancer, suggesting that other factors could play a role in the cause and progression of cervical...
Approximately 12% of Americans do not consume the amount of zinc equal to the Estimated Average Requirement for zinc and could be at risk for marginal zinc deficiency. Zinc is an essential component of proteins in the defense against oxidative stress and DNA damage repair. Specifically in the prostate, zinc...
Many factors can cause distorted growth in grapevines. One cause of distorted growth is a disorder known as Short Shoot Syndrome (SSS), which is associated with mite feeding damage. However, similar abnormal growth symptoms can be caused by spring frost damage, herbicide damage, vine imbalance (overcropping of vines), nutrient deficiency...
Thiamine (vitamin B₁) is required by all living organisms for carbohydrate metabolism and synthesis of amino acids. Thiamine deficiency is responsible for several related classes of early life stage mortality disorders in salmonines, including Thiamine Deficiency Complex (TDC) in the Laurentian Great Lakes, Cayuga Syndrome in the Finger Lakes, and...