Index Catalog // ScholarsArchive@OSU

Influence of stocking density on grazing beef cattle performance, diet composition foraging efficiency, and diet quality on a late-spring early-summer native bunchgrass prairie

Creator:: Wyffels, Samuel A.
Abstract:: This study evaluated the influence of cattle stocking density on botanical composition of diet, diet preference, and cattle performance on the Zumwalt Prairie in Northeastern Oregon. In each of two years, 192 cow-calf pairs (549.27 kg, BCS = 4.89) and 48 yearling heifers (383.34 kg, BCS = 5.02) were stratified...
Resource Type:: Masters Thesis
Full Text:: Early- Summer Native Bunchgrass Prairie. Abstract approved: Timothy DelCurto ABSTRACT

Effects of forage quality and type of protein supplement on intake and digestibility in beef steers and performance of postpartum beef cows

Creator:: White, Jenny J.
Abstract:: Two experiments were conducted to evaluate the effects of forage quality and supplemental undegradable intake protein (UIP) level on intake, digestibility, and performance of beef cattle. In Exp. 1, five ruminally cannulated steers (BW = 456 ± 6 kg) were used in a 6 x 5 incomplete Latin square with...
Resource Type:: Masters Thesis
Full Text:: quality, moderate (M, 8.0% CP, 62.1% NDF) and low (L, 4.0% CP, 8 1.5% NDF), and supplement type, high UIP

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:: Daalkhaijav Damiran1, Douglas E. Johnson2, Timothy DelCurto3, Scott L. Findholt4, and Bruce K. Johnson4

The influence of supplemental alfalfa quality on the intake and utilization of low-quality roughages by beef cattle

Creator:: Weder, Christoph E.
Abstract:: Three experiments were conducted to evaluate the influence of quality of supplemental alfalfa quality on beef cattle consuming low-quality meadow grass (MG) roughages. Fifteen steers (250 kg) were assigned randomly to one of three treatments: 1) meadow grass (5.2% CP), no supplement (MNS); 2) meadow grass plus high quality alfalfa...
Resource Type:: Masters Thesis
Full Text:: approved: Timothy DelCurto Three experiments were conducted to evaluate the influence of quality of

Grass straw residues as a feed source for wintering beef cattle

Creator:: Stamm, Michele M.
Resource Type:: Masters Thesis
Full Text:: Cattle Abstract approved: Redacted for Privacy Dr. Timothy E4ICurto A survey was conducted during the

The effects of timber harvest and herbivory on understory vegetation and composition of beef cattle diets on forested rangelands

Creator:: Walburger, Kenric J.
Abstract:: The objectives of the experiment were to: 1) determine the relationship between overstory canopy cover and ungulate herbivory on understory production composition and diversity and 2) determine the effects of timber harvest, ungulate herbivory and season of use on botanical composition and nutritional quality of beef cattle diets. Three randomly...
Resource Type:: Dissertation
Full Text:: tenure as superintendent and also for Dr. Timothy DelCurto for helping maintain this project. Dr

Nutritional and managerial considerations for wintering beef cattle in the northern Great Basin

Creator:: Brandyberry, Steven D.
Abstract:: A study was conducted to determine effects of year and season on diet quality of beef cattle grazing northern Great Basin rangelands from 1990 to 1993. Forage quality was high early in the growing season, then declined as seasons progressed (P<.05). Plant chemical composition was higher early in the growing...
Resource Type:: Dissertation
Full Text:: little bluestem, timothy (Phleum pratense), bluegrasses, ryegrass (Lolium spp.) and orchardgrass

Management of stockpiled forages and optimal use of supplements by beef cattle while consuming low-quality forages

Creator:: Suverly, Norman A.
Abstract:: Three studies were conducted to evaluate: 1) rotationally grazed forage for late-summer stockpiling; 2) effects of lactation on self-fed supplement intake; and 3) influence of cow age on hand-fed supplement intake. For the first study, treatments consisted of non grazed, 2X and 3X grazed. Crude protein of forage grazed 3X...
Resource Type:: Masters Thesis
Full Text:: alfalfa and timothy (Phleum pratense L.) hay mix. Molasses supplementation alone lowered hay intake when

Influence of age, condition, nutrition and season on serum and urine chemistry in Rocky Mountain elk

Creator:: Quinlan-Murphy, Lonnie J.
Resource Type:: Masters Thesis
Full Text:: : Timothy D Curto Research objectives were to establish reliable data for elk serum and urine chemistry

The influence of cow age on grazing distribution and utilization of mountain riparian areas and adjacent uplands

Creator:: Morrison, Julie A.
Abstract:: The objective of this study was to evaluate the influence of cow age on grazing distribution relative to mountain riparian areas. In each of two years, sixty cow-calf pairs were stratified by age into the following treatments: 1) thirty first calf heifers (442 kg, body condition score (BCS)=4.5), and 2)...
Resource Type:: Masters Thesis
Full Text:: , the cattle showed a strong preference for Kentucky bluegrass (Poapratensis L.), which was still

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

Twenty-five years of grazing research at Meadow Creek in the Starkey Experimental Forest and Range

Creator:: Walburger, Kenric
Abstract:: Three studies were conducted to evaluate different grazing systems on mixed conifer rangelands in eastern Oregon, and photo points and aerial photography was used to determine effects of 25 years of cattle grazing on stream channel changes and vegetation responses. The first study was designed to determine if grazing treatment...
Resource Type:: Masters Thesis
Full Text:: patterns in the first year favored (P<. l 0) south aspects later in the grazing season. In the second

Non-native and native plant species distributions and variability along an elevation gradient in the Wallowa Mountains, Oregon

Creator:: Averett, Joshua P.
Abstract:: Invasion by non-native plants into natural areas is an important component of global change that threatens biodiversity and ecosystem structure and function. Mountains are currently among the least invaded ecosystems, however, these biodiversity hotspots are increasingly under threat of exotic plant invasion. Evaluation of plant species distribution patterns in mountain...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Timothy DelCurto, Michael M. Borman Invasion by non-native plants into natural areas is an

ScholarsArchive@OSU

Influence of stocking density on grazing beef cattle performance, diet composition foraging efficiency, and diet quality on a late-spring early-summer native bunchgrass prairie

Effects of forage quality and type of protein supplement on intake and digestibility in beef steers and performance of postpartum beef cows

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

The influence of supplemental alfalfa quality on the intake and utilization of low-quality roughages by beef cattle

Grass straw residues as a feed source for wintering beef cattle

The effects of timber harvest and herbivory on understory vegetation and composition of beef cattle diets on forested rangelands

Nutritional and managerial considerations for wintering beef cattle in the northern Great Basin

Management of stockpiled forages and optimal use of supplements by beef cattle while consuming low-quality forages

Influence of age, condition, nutrition and season on serum and urine chemistry in Rocky Mountain elk

The influence of cow age on grazing distribution and utilization of mountain riparian areas and adjacent uplands

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

Twenty-five years of grazing research at Meadow Creek in the Starkey Experimental Forest and Range

Non-native and native plant species distributions and variability along an elevation gradient in the Wallowa Mountains, Oregon

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