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Factors influencing diet composition of beef cattle grazing mixed conifer mountain riparian areas

Creator:: Darambazar, Enkhjargal
Abstract:: Two trials were conducted to evaluate changes in the quantity, quality, and moisture of available forage in the pasture, and shrub utilization by cattle during a 30-d late summer grazing period (Trial 1) and the effect of cow age (experience) on grazing distribution and diet composition (Trial 2) in mountain...
Resource Type:: Masters Thesis
Full Text:: : Timothy Two trials were conducted to evaluate changes in the quantity, quality, and moisture of available

Influence of previous cattle and elk grazing on the subsequent diet quality and nutrient intake rate of cattle, deer, and elk grazing late-summer mixed-conifer rangelands

Creator:: Damiran, Daalkhaijav
Abstract:: Four studies were conducted on late-summer diet quality and quantity of cattle (Bos taurus), mule deer (Odocoileus hemionus hemionus), and elk (Cervus elaphus) in response to prior grazing by cattle and elk on mixed-conifer rangelands and on related research techniques. In our first study we assessed a photographic technique to...
Resource Type:: Dissertation
Full Text:: , and Elk Grazing Late-Summer Mixed- Conifer Rangelands. Abstract approved: Timothy DelCurto

Quantities of prostaglandins in whole and extended bovine semen and their potential effect on fertility following insemination

Creator:: Jaeger, John Ralph
Abstract:: Our objectives were to determine 1) the concentration of prostaglandin F2α (PGF2α) in whole and extended bovine semen, 2) if concentrations of prostaglandins in extended bovine semen are correlated to fertility, and 3) if PGF2α administered at the time of artificial insemination would improve conception rate. Concentration of PGF2α tended...
Resource Type:: Dissertation
Full Text:: : Timothy DelCurto Our objectives were to determine 1) the concentration of prostaglandin F2α (PGF2α

Development of acoustic emissions testing procedures applicable to conventionally reinforced concrete deck girder bridges subjected to diagonal tension cracking

Creator:: Lovejoy, Steven C.
Abstract:: A need exists to develop a non-destructive testing technique that can identify the formation and propagation of diagonal tension cracks in conventionally steel reinforced concrete deck girder (RCDG) highway bridges in the State of Oregon. Such a technique could be included into a structural health monitoring (SHM) system installed on...
Resource Type:: Dissertation
Full Text:: : Timothy C. Kennedy A need exists to develop a non-destructive testing technique that can identify

Accuracy versus cost in distributed data mining

Creator:: Deutschman, Stephanie
Abstract:: A basic tradeoff to consider when designing a distributed data-mining framework is the need for a compromise between the cost of communication and computation resources and the accuracy of the mining results. This is essentially a decision of whether it is more efficient to communicate all of the data to...
Resource Type:: Masters Thesis
Full Text:: in Distributed Data Mining. Abstract approved: Timothy A. Budd A basic tradeoff to consider when

Processes that influence the downstream propagation of heat in streams below clearcut harvest units : Hinkle Creek paired watershed study

Creator:: Otis, Timothy Leonard
Abstract:: This research investigates the direct and downstream impacts of clearcut harvest units on stream temperature as a part of the Hinkle Creek Paired Watershed Study. The Hinkle Creek watershed is located in the foothills of the Cascade Mountains about 30 kilometers northeast of Roseburg, Oregon, is privately owned, and supports...
Resource Type:: Masters Thesis
Full Text:: : Hinkle Creek Paired Watershed Study AN ABSTRACT OF THE THESIS OF Timothy Otis for

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Creator:: Perry, Timothy D.
Abstract:: This study quantified the magnitude and timing of summer streamflow deficits in paired-watershed experiments in the Cascade Range of Oregon where mature and old-growth conifer forests were subjected to clearcutting, patch cutting, and overstory thinning treatments in the 1960s and 1970s. Hydrologic effects of clearcutting, small-patch cutting, and overstory thinning...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF Timothy D. Perry for the degree of Master of Science in Geography presented

Scaling hydrologic impacts from road segments to a small watershed

Creator:: Royer, Timothy Adam
Abstract:: The impact of forest roads on the hydrology of forested watersheds has long been studied. While forest roads have been reported to alter storm runoff at the road segment scale, the potential for changes to be detectable at the small watershed scale has been debated. The purpose of this study...
Resource Type:: Masters Thesis
Full Text:: Timothy Adam Royer for the degree of Master of Science in Forest Engineering presented on February 27

A study of the frequency of utilization of the Oregon State University health services in relation to selected characteristics of students

Creator:: Stanaway, Timothy John
Abstract:: The purpose of this study was to identify some of the factors associated with student usage of the Student Health Services (SHS) and of the Infirmary at Oregon State University. The population for the study was the freshman class entering Oregon State University in September, 1968. The original enrollment of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF TIMOTHY JOHN STANAWAY for

The effect of pre-plant incorporation with sawdust, sawdust mulch, and nitrogen fertilizer rate on soil properties and nitrogen uptake and growth of 'Elliott' highbush blueberry

Creator:: White, Linda D. (Linda Dee)
Abstract:: The effect of incorporated sawdust, sawdust mulch and nitrogen (N) fertilizer rate on soil nutrients and other properties, N uptake, and plant growth in a young blueberry planting on a silt loam soil type was studied in 2004 and 2005. ‘Elliott’ highbush blueberry plants were established on raised beds that...
Resource Type:: Masters Thesis
Full Text:: temperature at, A) 0.02 m; B) 0.15 m; C) 0.30 m, soil depth………………………………………... 17 2-2 The effect of

ScholarsArchive@OSU

Factors influencing diet composition of beef cattle grazing mixed conifer mountain riparian areas

Influence of previous cattle and elk grazing on the subsequent diet quality and nutrient intake rate of cattle, deer, and elk grazing late-summer mixed-conifer rangelands

Quantities of prostaglandins in whole and extended bovine semen and their potential effect on fertility following insemination

Development of acoustic emissions testing procedures applicable to conventionally reinforced concrete deck girder bridges subjected to diagonal tension cracking

Accuracy versus cost in distributed data mining

Processes that influence the downstream propagation of heat in streams below clearcut harvest units : Hinkle Creek paired watershed study

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Scaling hydrologic impacts from road segments to a small watershed

A study of the frequency of utilization of the Oregon State University health services in relation to selected characteristics of students

The effect of pre-plant incorporation with sawdust, sawdust mulch, and nitrogen fertilizer rate on soil properties and nitrogen uptake and growth of 'Elliott' highbush blueberry

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